IllustrationTRANSMISSION LINE BETWEEN RADIATOR AND TRANSMISSION RUSTED OUT. MY VEHICLE IS A 2007 CHEVROLET TRAILBLAZER WITH 59,000 MILES. *TR
2007 Chevrolet Trailblazer
Owner reports · Recalls · Investigations
More warning signs than most Trailblazer years
Owner complaints for the 2007 Chevrolet Trailblazer are substantially higher than the model-year median of 87.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Trailblazer years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
200–25K
12325–50K
19050–75K
10575–100K
141100–150K
51150K+
630 reports with mileage · 102 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Fuel System, Gasoline. Review the 215 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 200 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Exterior Lighting. Review the 151 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
19 crash reports56 fire reports16 injury reports
Power Train complaints
15 reportsI PURCHASED A BRAND NEW CHEVROLET TRAILBLAZER AT THE END OF 2007. SINCE THEN, I HAVE HAD MULTIPLE SERVICE ISSUES WITH THE CAR, MOST NOTABLY A FAULTY FRONT AXLE THAT HAD TO BE REPLACED. IN JANUARY 2009, MY SERVICE 4WD LIGHT CAME ON AND I COULD NOT PUT MY CAR INTO 4WD. I IMMEDIATELY TOOK MY CAR TO THE DEALERSHIP, WHO COULD NOT …
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I PURCHASED A BRAND NEW CHEVROLET TRAILBLAZER AT THE END OF 2007. SINCE THEN, I HAVE HAD MULTIPLE SERVICE ISSUES WITH THE CAR, MOST NOTABLY A FAULTY FRONT AXLE THAT HAD TO BE REPLACED. IN JANUARY 2009, MY SERVICE 4WD LIGHT CAME ON AND I COULD NOT PUT MY CAR INTO 4WD. I IMMEDIATELY TOOK MY CAR TO THE DEALERSHIP, WHO COULD NOT FIND A PROBLEM AND RETURNED MY CAR TO ME. A WEEK LATER, I WAS DRIVING MY CAR IN THE SNOW IN 4WD, GETTING READY TO ENTER THE HIGHWAY, WHEN THE CAR STALLED AND THE SERVICE 4WD LIGHT CAME ON AGAIN. I RETURNED TO THE DEALERSHIP, WHO KEPT MY CAR FOR 3 DAYS AND AGAIN COULD NOT FIND THE PROBLEM. THEY RETURNED MY CAR TO ME AND SAID "YOU PROBABLY GOT SNOW IN YOUR MUFFLER". I DROVE MY CAR IN 4WD PERIODICALLY FOR THE NEXT 19 MONTHS TRUSTING THAT MY CAR WAS SAFE. WHEN THE SAME PROBLEM HAPPENED AGAIN AT THE END OF NOV 2010, I TOOK MY CAR TO A DIFFERENT DEALERSHIP WHO TOLD ME I HAD A BAD FRONT AXLE AND 5 BAD GEARS THAT WERE BINDING, AND THAT I COULD NOT DRIVE MY CAR IN 4WD UNTIL THIS WAS REPAIRED. I HAVE ALSO HAD TO HAVE AN O2 SENSOR REPLACED, SEVERAL BODY SYSTEM REPAIRS, AND YESTERDAY MY SERVICE STABILITRACK LIGHT CAME ON AND STAYED ON UNTIL I RESTARTED THE CAR. I HAVE ASKED CHEVY TO BUY BACK MY CAR, AS IT IS CLEAR I HAVE A POORLY MANUFACTURED AND UNSAFE VEHICLE, AND THEY HAVE ONLY OFFERED TO COVER MY BODY SYSTEMS PARTS UNDER WARRANTY. I FEEL UNSAFE IN MY CAR AND I DON' T KNOW WHERE TO TURN FOR HELP. *TR
2007 CHEVROLET TRAILBLAZER. *TR
MY 2007 TRAILBLAZER LOST POWER DURING ACCELERATION. ON JANUARY 22 I TOOK IT TO THE DEALER AND IT TOOK THEM 4 DAYS FOR THE VEHICLE TO ACT UP SO THEY COULD GET A CODE. THEY REPLACED THE POWERTRAIN CONTROL MODULE. ON MARCH 3, 2010 IT HAPPENED AGAIN, THE SAME EXACT PROBLEM, WHILE MY WIFE WAS CROSSING A STREET. THE RPMS WENT FROM…
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MY 2007 TRAILBLAZER LOST POWER DURING ACCELERATION. ON JANUARY 22 I TOOK IT TO THE DEALER AND IT TOOK THEM 4 DAYS FOR THE VEHICLE TO ACT UP SO THEY COULD GET A CODE. THEY REPLACED THE POWERTRAIN CONTROL MODULE. ON MARCH 3, 2010 IT HAPPENED AGAIN, THE SAME EXACT PROBLEM, WHILE MY WIFE WAS CROSSING A STREET. THE RPMS WENT FROM 2000 OR SO DOWN TO 5-600 WHILE PUSHING THE GAS PEDAL. I HAD THE TRUCK TOWED IN TO DEALER AND GOT A LOANER CAR UNDER TERMS OF MY WARRANTY. IT IS NOW DAY 6 AND THEY CANNOT GET IT TO ACT UP AGAIN. I CALLED GM CUSTOMER SERVICE HOTLINE AND GOT A CASE # 71-810026931, BUT I AM BEING TOLD BEFORE THEY SEND A TECHNICIAN THAT CAN SOLVE THE PROBLEM I MUST TAKE IT TO A SECOND DEALERSHIP AT MY COST AS WELL AS PAYING FOR TOWING AND LONER CAR FOR THE FIRST DEALERSHIP TO RELEASE THE TRUCK. THEY TOLD ME TO DRIVE IT UNTIL IT MESSES UP THEN GOTO THE DEALER TO GET CODE. THE SAFETY ISSUE IS WHAT HAPPENS TO MY FAMILY IF IT ACTS UP IN THE MIDDLE OF A TURN WITH TRAFFIC COMING. THERE IS OBVIOUSLY A PROBLEM THAT THE COMPUTER ISN'T RECOGNIZING. AND BECAUSE OF THAT MY FAMILY HAS TO BE THE GUINEA PIGS BEFORE GM WILL SEND A TECHNICIAN TO SOLVE THE PROBLEM. MY LOCAL MECHANIC SEEN THE PROBLEM, THE DEALERSHIP SEEN THE PROBLEM AND THOUGHT THEY FIXED IT. WHAT THEY DID WAS PUT A BANDAID ON A CUT THAT REQUIRES STITCHES. I HAVE TO PUT MY FAMILY IN JEOPARDY AND THAT OF WHOEVER HITS ME SO GM CAN SAVE MONEY AND NOT SEND THE TECHNICIAN. THE SAME PROBLEM IN JUST OVER A MONTH, FROM LOSING POWER TO THE DEALERSHIP HAVING PROBLEMS DIAGNOSING IT SHOULD SEND UP A RED FLAG THAT SOMETHING IS WRONG AND LIVES ARE IN DANGER. BUT THAT DOES NOT SEEM TO BE THE CONCERN EXCEPT FROM ME. SO I HAVE TO PAY FOR A TRUCK THAT IM AFRAID TO DRIVE SO GM DOESN'T LOSE MONEY SENDING OUT A TECHNICIAN WHEN THEY SHOULD BE WORRIED ABOUT A PROBLEM WITH A TRUCK THAT COULD COST SOMEONE THEIR LIFE. *TR
I HAVE A PROBLEM WHERE THE THROTTLE HANGS UP AROUND 2000 RPM IN ALL GEARS AFTER BEING ON THE THROTTLE AND THEN IMMEDIATELY NEEDING TO SLOW DOWN FOR ANY REASON. THIS IS A TRAILBLAZER SUPER SPORT EQUIPPED WITH THE 395 HP 400 FT LB ENGINE. I HAVE BEEN TO THE DEALER. I HAVE SUED GM FOR THIS BEING A LEMON AND WAS PAID OFF. YET NO F…
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I HAVE A PROBLEM WHERE THE THROTTLE HANGS UP AROUND 2000 RPM IN ALL GEARS AFTER BEING ON THE THROTTLE AND THEN IMMEDIATELY NEEDING TO SLOW DOWN FOR ANY REASON. THIS IS A TRAILBLAZER SUPER SPORT EQUIPPED WITH THE 395 HP 400 FT LB ENGINE. I HAVE BEEN TO THE DEALER. I HAVE SUED GM FOR THIS BEING A LEMON AND WAS PAID OFF. YET NO FIX. I HAVE VIDEO OF THIS HAPPENING. OTHER OWNERS HAVE THE SAME PROBLEM AND GM SAYS BECAUSE OTHERS DO IT THE VEHICLE IS ACTING AS DESIGNED. PER GEORGE VALEZ GM LEGAL OFFICE . GM SERVICE REQUEST # 71-661522934 "HIGH IDLE" I HAVE LOGS WHERE THE ACCELERATION TAKES PLACE FROM 9 MPH TO 11 MPH FOR 11 SECONDS OF A TBSS WILD RIDE WITH NO THROTTLE. I START BY DOWNSHIFTING IT IN MANUAL 1ST WHILE SLOWING DOWN. (BRAKES REQUIRED TO SLOW FROM 2K HANG UP RPM ON DOWN.) WHEN THE ENGINE IS SLOWING DOWN THERE IS A BUMP AT ~2000 RPM WHERE THE ENGINE SPEED RAISES ABOVE THE INPUT SHAFT SPEED OF THE TRANSMISSION. PRIOR TO THIS IT WAS TURNING SLOWER AND COMPRESSION BRAKING. TIME HERE IS 0 OF THE 11 SECONDS. I HIT THE BRAKES AT 14 MPH TO PULL THE SPEED DOWN FROM 2K RPM AND LET OFF AT 9MPH 3 SECONDS LATER. STARTING AT 1381 RPM FOR THE LOWEST ENGINE RPM, TRANS INPUT SHAFT 50 RPM SLOWER THEN THE ENGINE INDICATING ACCELERATION. AC CLUTCH JUST HAPPENS TO KICK IN HERE. "HERE WE GO!" I SAY. THE NEXT 8 SECONDS WE HAVE THE ENGINE HITS 1650 RPM AND HUNTS AROUND THIS RPM +- 75 RPM WHILE WE HIT 11 MPH. AT 8.4 SECONDS THE ENGINE CUTS BACK TO 1468 RPM. THIS IS WHEN THE TRANS INPUT SPEED IS FASTER THAN THE ENGINE RPM BY AROUND 50 - 70 RPM, THIS INDICATES ENGINE FINALLY SLOWING THE VEHICLE AGAIN. IT ONLY TAKES 5 SECONDS FROM THIS POINT TO SLOW DOWN FROM 11 MPH TO 5MPH WITHOUT ANY BRAKES. THAT IS WHAT IS SCARY - 16 SECONDS OF FIGHTING THE ENGINE WHEN IT COULD HAVE STAYED CUT OUT AND SLOWED DOWN IN LESS THAN 5 SECONDS FROM 2K RPM. THE AC IN THIS EXAMPLE MAKES THE PROBLEM WORSE, BUT ISN'T 100% OF THE PROBLEM. *TR UPDATED IVOQ/ 09/10/09
Official recalls
515V599000 · Visibility:power Window Devices And Controls
Sep 24, 2015
General Motors LLC (GM) is recalling certain model year 2006-2007 Buick Rainier, Chevrolet Trailblazer and GMC Envoy vehicles, and 2006 GMC Envoy XL and Chevrolet Trailblazer EXT vehicles. Fluid may enter into the driver's door master power window switch module, causing corrosion that could result in a short in the circuit board, causing window switches to become inoperative. Previously, the affected vehicles may have had their master power window switch module treated with a protective coating, instead of having it replaced.
Consequence & remedy
Consequence: The protective coating may not eliminate the risk that the circuit board could short and result in a fire, even while the vehicle is unattended.
Remedy: GM will notify owners, and dealers will install a new driver's door switch module, free of charge. The recall began on November 2, 2015. Owners may contact Buick customer service at 1-800-521-7300, Chevrolet customer service at 1-800-222-1020, and GMC customer service at 1-800-462-8782. GM's number for this recall is 15700.
15V519000 · Exterior Lighting:headlights
Aug 14, 2015
General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate.
Consequence & remedy
Consequence: Headlamps that do not illuminate reduce the driver's ability to see the roadway and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash.
Remedy: GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17, 2016. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737. GM's number for this recall is 14291.
14V404000 · Visibility:power Window Devices And Controls
Jul 2, 2014
General Motors LLC (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door master power window switch module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence & remedy
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: GM will notify owners, and dealers will inspect the part number on the door module, and install a new door module if necessary, free of charge. Parts for the remedy are not currently available. An interim letter was mailed to owners in August 2014. A second owner letter will be mailed when parts are available. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-222-1020 (Chevrolet), 1-800-462-8782 (GMC), 1-800-955-9007 (SAAB), and 1-800-255-6727 (Isuzu). GM's number for this recall is 14309. NOTE: This recall provides a new remedy for all vehicles covered by recall 13V-248. Vehicles whose modules were modified but not replaced as part of the previous recall remedy must have their vehicles remedied again under this campaign.
13V248000 · Electrical System; Visibility:power Window Devices And Controls
Jun 13, 2013
General Motors (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence & remedy
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced. These repairs will be done free of charge. GM will notify Buick, Chevrolet, and GMC owners, Isuzu and Saab will contact their respective owners. The recall began on August 2, 2013. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, GMC owners at 1-866-996-9463, Isuzu owners at 1-800-255-6727, and Saab owners at 1-800-955-9007. GM's campaign number is 12180. This recall is an expansion of recall 12V-406.
Additional source detail variants (2)
Visibility:power Window Devices And Controls
General Motors (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced. These repairs will be done free of charge. GM will notify Buick, Chevrolet, and GMC owners, Isuzu and Saab will contact their respective owners. The recall began on August 2, 2013. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, GMC owners at 1-866-996-9463, Isuzu owners at 1-800-255-6727, and Saab owners at 1-800-955-9007. GM's campaign number is 12180. This recall is an expansion of recall 12V-406.
Electrical System
General Motors (GM) is recalling certain model year 2005-2007 SAAB 9-7x; 2006 Chevrolet Trailblazer EXT and GMC Envoy XL; and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier and Isuzu Ascender vehicles. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: Owners will be contacted and dealers will test the driver's door module. If the module is functioning properly, a protective coating will be applied. If the module is not functioning properly, it will be replaced. These repairs will be done free of charge. GM will notify Buick, Chevrolet, and GMC owners, Isuzu and Saab will contact their respective owners. The recall began on August 2, 2013. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, GMC owners at 1-866-996-9463, Isuzu owners at 1-800-255-6727, and Saab owners at 1-800-955-9007. GM's campaign number is 12180. This recall is an expansion of recall 12V-406.
12V406000 · Electrical System; Visibility:power Window Devices And Controls
Aug 16, 2012
General Motors (GM) is recalling certain model year 2006 Chevrolet Trailblazer EXT and GMC Envoy XL and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, SAAB 9-7x, and Isuzu Ascender vehicles, originally sold or currently registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence & remedy
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: Parts for this recall are expected to available in March 2013. GM will notify Buick, Chevrolet, and GMC owners when parts are available. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, and GMC owners at 1-866-996-9463. Isuzu owners will be notified by Isuzu Motors when parts are available. Owners may contact Isuzu customer service at 1-800-255-6727. SAAB owners will be notified by SAAB Cars North America when parts are available and for inquiries, owners may call SAAB customer service at 1-800-955-9007.
Additional source detail variants (2)
Visibility:power Window Devices And Controls
General Motors (GM) is recalling certain model year 2006 Chevrolet Trailblazer EXT and GMC Envoy XL and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, SAAB 9-7x, and Isuzu Ascender vehicles, originally sold or currently registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: Parts for this recall are expected to available in March 2013. GM will notify Buick, Chevrolet, and GMC owners when parts are available. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, and GMC owners at 1-866-996-9463. Isuzu owners will be notified by Isuzu Motors when parts are available. Owners may contact Isuzu customer service at 1-800-255-6727. SAAB owners will be notified by SAAB Cars North America when parts are available and for inquiries, owners may call SAAB customer service at 1-800-955-9007.
Electrical System
General Motors (GM) is recalling certain model year 2006 Chevrolet Trailblazer EXT and GMC Envoy XL and 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, SAAB 9-7x, and Isuzu Ascender vehicles, originally sold or currently registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.
Consequence: A short in the circuit board could lead to a fire, increasing the risk of personal injury. A fire could occur even while the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been made.
Remedy: Parts for this recall are expected to available in March 2013. GM will notify Buick, Chevrolet, and GMC owners when parts are available. Buick owners may contact the owner center at 1-800-521-7300, Chevrolet owners at 1-866-694-6546, and GMC owners at 1-866-996-9463. Isuzu owners will be notified by Isuzu Motors when parts are available. Owners may contact Isuzu customer service at 1-800-255-6727. SAAB owners will be notified by SAAB Cars North America when parts are available and for inquiries, owners may call SAAB customer service at 1-800-955-9007.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4RQ17002 · Loss Of Headlights
Opened Apr 24, 2017 · Closed Mar 29, 2021
Status: closed (inferred from source dates) · Exterior Lighting:headlights
The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV. The original scope of this investigation was expanded to include all vehicles equipped with the subject Headlight Driver Module (HDM). The focus of the investigation was to determine whether actions performed by General Motors adequately addressed any unreasonable risk to motor vehicle safety in the subject vehicles concerning the headlights and the HDM that controls them.Under normal electrical load and environmental conditions, the HDM can overheat inside the Underhood Electrical Center (UEC). This can cause the module to fail and result in a simultaneous loss of both low beam headlights and both daytime running lights (DRLs), often with no warning or prior detectability to the driver. This failure can be intermittent or permanent. No other exterior lights are affected. High beams, turn signals, brake lights, and reverse lights are still operational.General Motors addressed this issue with 2 recalls (14V755 & 15V519) and a special coverage program (N172091910). In view of the recalls and special coverage program implemented by GM and the vehicle high beams continuing to operate, ODI has tentatively concluded that the actions taken by GM mitigate any unreasonable risk to safety posed by HDM failure in the subject vehicles.Accordingly, the investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.
EA12004 · Driver's Master Power Window Switch
Opened Jun 11, 2012 · Closed Jun 21, 2013
Status: closed (inferred from source dates) · Electrical System; Visibility:power Window Devices And Controls
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.
Additional source detail variants (4)
Electrical System
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.
Electrical System
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.
Visibility:power Window Devices And Controls
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.
Visibility:power Window Devices And Controls
On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.
PE12003 · Driver's Master Power Window Switch
Opened Feb 9, 2012 · Closed Jun 11, 2012
Status: closed (inferred from source dates) · Electrical System; Visibility:power Window Devices And Controls
The Office of Defects Investigation (ODI) opened this investigation on February 9, 2012 in response to complaints alleging driver door module melting and/or burning in MY 2006-2007 Chevrolet Trailblazers. In response to ODI's Information Request letter, General Motors presented 167 reports and 698 warranty claims that related to the alleged problem. ODI has received a total of 83 complaints, 66 alleging the door module had melted or burned, and the remaining 17 stating that the window switches acted erratically or were inoperative. Twenty-eight of the reports received have led to driver door fires, some of which allege the vehicle was keyed off and unattended. Based on the agency's current analysis, ODI has upgraded its investigation to an Engineering Analysis (EA12-004) to determine whether the subject vehicles contain a defect that presents an unreasonable risk to safety.The vehicle models and production dates of affected vehicles will be evaluated, particularly other GMT360 vehicles. The ODI reports cited above can be reviewed online at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers: 10247838, 10260600, 10274337, 10275626, 10284010, 10396958, 10406203, 10409023, 10414691, 10417938, 10423865, 10426281, 10434446, 10445657, 10447754, 10447757, 10447770, 10447788, 10447813, 10447831, 10447865, 10447880, 10447892, 10447938, 10447994, 10447996, 10447997, 10448028, 10448086, 10448138, 10448176, 10448201, 10448337, 10448455, 10448464, 10448478, 10448540, 10448900, 10448941, 10449150, 10449166, 10449169, 10449236, 10449722, 10450055, 10450202, 10450284, 10451584, 10451878, 10451918, 10452197, 10452301, 10452586, 10452743, 10452895, 10453161, 10453227, 10453261, 10453578, 10453746, 10453951, 10454196, 10454211, 10454539, 10454673, 10455122, 10455150, 10455279, 10455469, 10456285, 10456529, 10457116, 10457644, 10457811, 10458224, 10458485, 10458599, 10458743, 10458846, 10460062, 10460141, 10460732, 10460843
Additional source detail variants (2)
Electrical System
The Office of Defects Investigation (ODI) opened this investigation on February 9, 2012 in response to complaints alleging driver door module melting and/or burning in MY 2006-2007 Chevrolet Trailblazers. In response to ODI's Information Request letter, General Motors presented 167 reports and 698 warranty claims that related to the alleged problem. ODI has received a total of 83 complaints, 66 alleging the door module had melted or burned, and the remaining 17 stating that the window switches acted erratically or were inoperative. Twenty-eight of the reports received have led to driver door fires, some of which allege the vehicle was keyed off and unattended. Based on the agency's current analysis, ODI has upgraded its investigation to an Engineering Analysis (EA12-004) to determine whether the subject vehicles contain a defect that presents an unreasonable risk to safety.The vehicle models and production dates of affected vehicles will be evaluated, particularly other GMT360 vehicles. The ODI reports cited above can be reviewed online at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers: 10247838, 10260600, 10274337, 10275626, 10284010, 10396958, 10406203, 10409023, 10414691, 10417938, 10423865, 10426281, 10434446, 10445657, 10447754, 10447757, 10447770, 10447788, 10447813, 10447831, 10447865, 10447880, 10447892, 10447938, 10447994, 10447996, 10447997, 10448028, 10448086, 10448138, 10448176, 10448201, 10448337, 10448455, 10448464, 10448478, 10448540, 10448900, 10448941, 10449150, 10449166, 10449169, 10449236, 10449722, 10450055, 10450202, 10450284, 10451584, 10451878, 10451918, 10452197, 10452301, 10452586, 10452743, 10452895, 10453161, 10453227, 10453261, 10453578, 10453746, 10453951, 10454196, 10454211, 10454539, 10454673, 10455122, 10455150, 10455279, 10455469, 10456285, 10456529, 10457116, 10457644, 10457811, 10458224, 10458485, 10458599, 10458743, 10458846, 10460062, 10460141, 10460732, 10460843
Visibility:power Window Devices And Controls
The Office of Defects Investigation (ODI) opened this investigation on February 9, 2012 in response to complaints alleging driver door module melting and/or burning in MY 2006-2007 Chevrolet Trailblazers. In response to ODI's Information Request letter, General Motors presented 167 reports and 698 warranty claims that related to the alleged problem. ODI has received a total of 83 complaints, 66 alleging the door module had melted or burned, and the remaining 17 stating that the window switches acted erratically or were inoperative. Twenty-eight of the reports received have led to driver door fires, some of which allege the vehicle was keyed off and unattended. Based on the agency's current analysis, ODI has upgraded its investigation to an Engineering Analysis (EA12-004) to determine whether the subject vehicles contain a defect that presents an unreasonable risk to safety.The vehicle models and production dates of affected vehicles will be evaluated, particularly other GMT360 vehicles. The ODI reports cited above can be reviewed online at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers: 10247838, 10260600, 10274337, 10275626, 10284010, 10396958, 10406203, 10409023, 10414691, 10417938, 10423865, 10426281, 10434446, 10445657, 10447754, 10447757, 10447770, 10447788, 10447813, 10447831, 10447865, 10447880, 10447892, 10447938, 10447994, 10447996, 10447997, 10448028, 10448086, 10448138, 10448176, 10448201, 10448337, 10448455, 10448464, 10448478, 10448540, 10448900, 10448941, 10449150, 10449166, 10449169, 10449236, 10449722, 10450055, 10450202, 10450284, 10451584, 10451878, 10451918, 10452197, 10452301, 10452586, 10452743, 10452895, 10453161, 10453227, 10453261, 10453578, 10453746, 10453951, 10454196, 10454211, 10454539, 10454673, 10455122, 10455150, 10455279, 10455469, 10456285, 10456529, 10457116, 10457644, 10457811, 10458224, 10458485, 10458599, 10458743, 10458846, 10460062, 10460141, 10460732, 10460843
DP10001 · Fuel Level Gauge System Failure
Opened Jan 7, 2010 · Closed May 23, 2011
Status: closed (inferred from source dates) · Fuel System, Other; Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Additional source detail variants (2)
Fuel System, Other
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.
Fuel System, Other:storage:fuel Gauge System
The Office of Defects Investigation has received 668 complaints alleging inaccurate fuel gauge reading while driving in model year 2005-07 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and Saab 9-7x vehicles.Of the 668 complaints, 58 incidents were alleged to result in a vehicle stall.Of the 58 stalling incidents, 43 complaints reported stalling because the fuel level reading indicated more fuel availability than what is actually in the fuel tank. One complaint alleged a vehicle crash after the vehicle stalled while exiting the interstate, became disabled, and was struck from behind.Summarily, the complaints show an apparent increasing trend, with most complaints received within the past year.A Preliminary Evaluation has been opened to assess the scope, frequency and potential safety consequences associated with the alleged defect.