NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
30 reportsClear category filterMileage unknown · Mar 16, 2015
Electrical SystemEngineSteering
THE ENGINE LIGHT CONSTANTLY COMES ON EVEN AFTER I HAD A TUNE UP. I HAD DIAGNOSTICS DONE AND THERE IS SOME TYPE OF FUEL MISFIRE. TWO WINTERS STRAIGHT I HAVE HAD ISSUES WITH THE POWER STEERING LINES BURSTING AND REPLACED 3 TIMES. THE SPEEDOMETER MALFUNCTIONS, MOST OF THE TIME IT JUST STAYS AT ZERO. IF GM USES A LOT OF THE SAME P…
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THE ENGINE LIGHT CONSTANTLY COMES ON EVEN AFTER I HAD A TUNE UP. I HAD DIAGNOSTICS DONE AND THERE IS SOME TYPE OF FUEL MISFIRE. TWO WINTERS STRAIGHT I HAVE HAD ISSUES WITH THE POWER STEERING LINES BURSTING AND REPLACED 3 TIMES. THE SPEEDOMETER MALFUNCTIONS, MOST OF THE TIME IT JUST STAYS AT ZERO. IF GM USES A LOT OF THE SAME PARTS TO MAKE MULTIPLE MODELS WHY HAS THE 2005 TRAILBLAZER NOT BEEN RECALLED? I WAS TOLD THE GM ENVOY HAS THE SAME ENGINE AND OTHER INNER WORKINGS AS MY TRAILBLAZER SO WHY WOULDN'T THEIR RECALLS APPLY TO MY VEHICLE ESPECIALLY IF I MAY BE HAVING THE SAME ISSUES. *TR
NHTSA ODI #10694608
98,000 miles · Mar 6, 2015
Electrical SystemEngineExterior Lighting
MULTIPLE TIMES WHILE DRIVING THE HEADLIGHTS WILL MALFUNCTION AND TURN ON AND OFF, AT RANDOM DRIVING SPEEDS UNDER MANY DIFFERENT CONDITIONS. I CONTINUED TO DRIVE THE TRAILBLAZER EVEN AFTER THIS OCCURRED. JUST NOT AS OFTEN. IF THE HEATER WAS ON WHILE DRIVING AND THE HEADLIGHTS WOULD SHORT THE HEATER WOULD STOP AND THEN TURN BACK …
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MULTIPLE TIMES WHILE DRIVING THE HEADLIGHTS WILL MALFUNCTION AND TURN ON AND OFF, AT RANDOM DRIVING SPEEDS UNDER MANY DIFFERENT CONDITIONS. I CONTINUED TO DRIVE THE TRAILBLAZER EVEN AFTER THIS OCCURRED. JUST NOT AS OFTEN. IF THE HEATER WAS ON WHILE DRIVING AND THE HEADLIGHTS WOULD SHORT THE HEATER WOULD STOP AND THEN TURN BACK ON. THE FAN TURNS ON AT RANDOM, FIRST IT TURNS ON WHEN DRIVING AT RANDOM TIMES. THE FAN WILL TURN ON AT RANDOM TIMES WITH A HIGHER SPEED AND SOUND. I HAVE HAD THE INSPECTION COMPLETED MULTIPLE TIMES WITH A MECHANIC RE-ASSURING THE ISSUE ALTHOUGH IT HAS BEEN HAPPENING FREQUENTLY. THE CHECK ENGINE LIGHT IS ON ALL THE TIME DUE TO COMPUTER ERROR AND IS A $500.00 FIX. THIS HAS ALL HAPPENED AND BEEN REPORTED WITHIN THE FIRST YEAR I BOUGHT THE VEHICLE FROM KENDAL MOTORS IN LEWISTON IDAHO. I FIND THAT THE AMOUNT OF WORK TO FIX THIS VEHICLE IS OVERWHELMING AND TO SEE THAT THIS VEHICLE WAS UNDER 100.000 MILES IS FINANCIALLY DISTRESSING. I HAVE ALREADY HAD THE FUEL PUMP PORTION REMOVED AND FIXED TWICE, I HAD TO PURCHASE A LOCKING CAP. THE STEREO REPEATEDLY JAMS WITH NEW CD'S EVEN. *TR
NHTSA ODI #10692428
140,000 miles · Oct 23, 2014
Engine
PULLED UP TO A RED LIGHT AND STOPPED. SHORTLY AFTER, COMING TO A COMPLETE STOP, THE ENGINE JUST SHUT DOWN. NO WARNING LIGHTS HAD COME ON PRIOR TO THE ENGINE SHUTTING DOWN. JUST LOST ALL POWER INSTANTLY. I TURNED THE KEY, AS YOU WOULD TO START THE VEHICLE, AND IT STARTED RIGHT UP. VERY GLAD IT DID NOT HAPPEN WHILE I WAS ON TH…
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PULLED UP TO A RED LIGHT AND STOPPED. SHORTLY AFTER, COMING TO A COMPLETE STOP, THE ENGINE JUST SHUT DOWN. NO WARNING LIGHTS HAD COME ON PRIOR TO THE ENGINE SHUTTING DOWN. JUST LOST ALL POWER INSTANTLY. I TURNED THE KEY, AS YOU WOULD TO START THE VEHICLE, AND IT STARTED RIGHT UP. VERY GLAD IT DID NOT HAPPEN WHILE I WAS ON THE EXPRESSWAY OR WHILE MOVING. I CAN'T HELP BUT WONDER IF IT IS AN IGNITION PROBLEM, AS THAT WHICH PLAGUES OTHER GM PRODUCTS. ALSO, I HAVE THE RADIO ON WHILE DRIVING AND ON MULTIPLE OCCASIONS, AFTER TURNING OFF THE CAR AND OPENING THE DOOR TO GET OUT, THE RADIO REFUSES TO STOP PLAYING (IT IS SUPPOSED TO, AND IT USED TO, CEASE OPERATING WHEN YOU OPEN THE DRIVER'S DOOR). I AM FORCED TO OPEN THE BACK VEHICLE DOOR TO GET IT TO STOP. I WONDER IF THIS IS A RELATED ISSUE TO THE IGNITION, AS THE IGNITION KEY MAY NOT ACTUALLY BE SHUTTING OF THE ACCESSORIES. *TR
NHTSA ODI #10649377
150,000 miles · Aug 13, 2014
Engine
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING 55 MPH, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED AND THE VEHICLE STALLED. WITHIN FIVE MINUTES, THE VEHICLE RESTARTED BUT THE CHECK ENGINE INDICATOR REMAINED ILLUMINATED. THE FAILURE OCCURRED FOUR TIMES. THE VEHICLE WAS TAKEN TO A DEALER WHO CONFIRMED THAT THE…
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TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING 55 MPH, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED AND THE VEHICLE STALLED. WITHIN FIVE MINUTES, THE VEHICLE RESTARTED BUT THE CHECK ENGINE INDICATOR REMAINED ILLUMINATED. THE FAILURE OCCURRED FOUR TIMES. THE VEHICLE WAS TAKEN TO A DEALER WHO CONFIRMED THAT THE THROTTLE BODY NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 150,000.
NHTSA ODI #10622118
89,000 miles · Aug 12, 2014
EngineService Brakes
TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE PARKING, THE VEHICLE STALLED AND THE ABS AND SERVICE BRAKE SYSTEM WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 89,000.
NHTSA ODI #10621816
123,000 miles · Aug 9, 2014
Electronic Stability Control (esc)Engine
THE CHECK ENGINE LIGHT COMES ON&OFF A LOT RIGHT AFTER FUELING, I TOOK IT TO THE GMC DEALERSHIP&HAD THE CAMSHAFT REPLACED BECAUSE IT KEPT CUTTING OFF EVERY TIME I TURNED A CURVE.I TRIED TO SHOW OR TELL THEM ABOUT THIS GMC RECALL LETTER I GOT ON MY 2005 CHEVROLET TRAILBLAZER, BUT THEY SAID THAT IT DIDN'T APPLY BECAUSE OF THE MILEA…
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THE CHECK ENGINE LIGHT COMES ON&OFF A LOT RIGHT AFTER FUELING, I TOOK IT TO THE GMC DEALERSHIP&HAD THE CAMSHAFT REPLACED BECAUSE IT KEPT CUTTING OFF EVERY TIME I TURNED A CURVE.I TRIED TO SHOW OR TELL THEM ABOUT THIS GMC RECALL LETTER I GOT ON MY 2005 CHEVROLET TRAILBLAZER, BUT THEY SAID THAT IT DIDN'T APPLY BECAUSE OF THE MILEAGE&I TOLD THEM THE CAR IS NOT 10YRS OLD& THE PAPER IS SAYING 10YRS/120,00 MILES& FOR ME TO TAKE IT TO THE DEALERSHIP SO THAT THE MANGER CAN SEND MY BILL & RECEIPT IN FOR REIMBURSEMENT THEY WOULDN'T DO IT.I GUESS BECAUSE I'M A WOMAN.DRIVING TO WORK ON THE INTERSTATE THE CAR SHUT COMPLETELY OFF. THE CAR WAS STILL MOVING WHEN ALL OF A SUDDEN ALL THE LIGHTS AND GAUGE'S LIT UP AND THE CAR CUT OFF. IT DID NOT LOCK UP SO I WAS ABLE TO STEER IT FROM THE MIDDLE LANE OF A THREE LANE INTERSTATE HIGHWAY TO THE GRASS ON THE SIDE WITHOUT GETTING KILLED OR HURTING SOMEONE ELSE.I HAD JUST FILLED IT UP WITH GAS WITH A QUARTER OF A TANK FROM THE FULL LINE. ONCE I GOT THE CAR TO A COMPLETE STOP AND THANKING GOD THAT THIS WAS NOT TRAGIC,I PUT THE CAR IN PARK AND WAITED A FEW MINUTES BEFORE STARTING IT BACK UP. IT STARTED BACK UP AS IF NOTHING HAD HAPPENED. I TOOK IT TO AUTO ZONE TO GET A FREE DIAGNOSTIC CHECK&IT SHOWED THAT NOTHING WAS WRONG. A FEW WEEKS LATER AFTER I WOULD CUT THE CAR OFF THE AIR CONDITIONING WOULD NOT STOP&THE ENGINE LIGHT CONSTANTLY COMES ON EVERY OTHER TIME I HIT THE BRAKES. I HAD TO KEEP TAKING OUT FUSE #35 TO GET IT TO STOP EVEN AFTER THE CAR WAS CUT OFF JUST SO THE BATTERY WON'T RUN DOWN. TOOK IT TO THE DEALERSHIP AND WAS CHARGED AN ARM&LEG TO GET IT FIXED. I SHOWED THEM THE RECALL LETTER AGAIN AND THEY SAID IT WAS TOO LATE FOR THEM OR MYSELF TO DO ANYTHING ABOUT IT. I HAVE ALL OF MY RECEIPTS & THE LETTER FROM GMC ABOUT THE RECALLS.IM SURE MY VEHICLE FITS IN THERE SOMEWHERE WITH THESE PROBLEMS& TRULY WOULD LIKE 4 THEM 2 GIVE MY FREE CAR. *TR
NHTSA ODI #10621170
3,000 miles · Jul 5, 2014
EnginePower Train
I AM THE OWNER OF A 2005 CHEVROLET TRAILBLAZER WITH 32,000 MILES. I PURCHASED THE TRUCK NEW FROM THE DEALER. OVER THE FEW YEARS THAT I HAVE OWNED THE VEHICLE, I HAVE BEEN FACED WITH A MULTITUDE OF ISSUES. MY FIRST PROBLEM BECAME THE AC LINES. THEY BEGAN TO LEAK DUE TO RUST, WHICH WAS NOT COVERED UNDER THE 7 YEAR, 70,000 MILE WA…
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I AM THE OWNER OF A 2005 CHEVROLET TRAILBLAZER WITH 32,000 MILES. I PURCHASED THE TRUCK NEW FROM THE DEALER. OVER THE FEW YEARS THAT I HAVE OWNED THE VEHICLE, I HAVE BEEN FACED WITH A MULTITUDE OF ISSUES. MY FIRST PROBLEM BECAME THE AC LINES. THEY BEGAN TO LEAK DUE TO RUST, WHICH WAS NOT COVERED UNDER THE 7 YEAR, 70,000 MILE WARRANTY. NEXT THE EXHAUST MANIFOLD BEGAN TO LEAK. THE COST WAS COVERED UNDER THE WARRANTY; HOWEVER, THE DEALER MANAGED TO BREAK THE BOLTS THAT HOLD THE MANIFOLD TO THE ENGINE. THE BREAKAGE WAS NOT COVERED, AND THEREFORE, I HAD TO PAY. FOLLOWING THESE TWO ISSUES, I NOTICED RUST ALL OVER THE UNDERCARRIAGE. IN THE PAST THREE YEARS, AFTER MY WARRANTY EXPIRED, I HAD TO FIX THE FOLLOWING ITEMS DUE TO THE RUST: THE POWER STEERING COIL, REAR END, TRANSMISSION, FUEL PUMP, POWER STEERING LINES, POWER STEERING PUMP, RACK AND PINION, FRONT WHEEL BEARINGS, AND A FUEL GAGE RECALL FROM GM. IN ADDITION, I AVOID USING LOW 4-WHEEL DRIVE, BECAUSE THE VEHICLE GETS STUCK IN THAT GEARING. *TR
NHTSA ODI #10608278
8,000 miles · Jul 4, 2014
EngineFuel System, Gasoline
MY CAR HAS SHUT DOWN WHILE IDLING AT A STOP SIGN OR RED LIGHT. THE FIRST TIME WAS IN 2006, BUT HAS HAPPENED SEVERAL TIMES SINCE THEN. I'VE TAKEN IT TO THE DEALERSHIP, BUT THEY SAID THAT THEY COULDN'T SEE ANYTHING WRONG WITH MY VEHICLE. I BELIEVE THAT MY FUEL GAUGE IS INACCURATE. IT SHOWED EMPTY, AND, THEN 1/4 TANK. THE REAR WIPE…
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MY CAR HAS SHUT DOWN WHILE IDLING AT A STOP SIGN OR RED LIGHT. THE FIRST TIME WAS IN 2006, BUT HAS HAPPENED SEVERAL TIMES SINCE THEN. I'VE TAKEN IT TO THE DEALERSHIP, BUT THEY SAID THAT THEY COULDN'T SEE ANYTHING WRONG WITH MY VEHICLE. I BELIEVE THAT MY FUEL GAUGE IS INACCURATE. IT SHOWED EMPTY, AND, THEN 1/4 TANK. THE REAR WIPER SWEEPS WITHOUT BEING TURNED ON. *TR
NHTSA ODI #10608262
90,000 miles · May 16, 2014
Electrical SystemEnginePower Train
SIR/ MA'AM, I NOTICED RECENTLY IN THE NEWS THAT SEVERAL GM PRODUCT LINES HAVE BEEN PLAGUED BY FAULTY IGNITION SWITCHES CAUSING THE VEHICLE TO LOSE POWER AND/OR CUT OUT. I IMPLORE YOU TO LOOK INTO THE TRAILBLAZERS. I EMAILED GM WHILE I WAS DEPLOYED (2012) AND THEY GAVE ME THE RUNAROUND SAYING THAT IT IS NOT A DOCUMENTED PROBLEM,…
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SIR/ MA'AM, I NOTICED RECENTLY IN THE NEWS THAT SEVERAL GM PRODUCT LINES HAVE BEEN PLAGUED BY FAULTY IGNITION SWITCHES CAUSING THE VEHICLE TO LOSE POWER AND/OR CUT OUT. I IMPLORE YOU TO LOOK INTO THE TRAILBLAZERS. I EMAILED GM WHILE I WAS DEPLOYED (2012) AND THEY GAVE ME THE RUNAROUND SAYING THAT IT IS NOT A DOCUMENTED PROBLEM, AS EXPECTED. A SIMPLE INTERNET SEARCH WOULD SHOW THAT A LOT OF OTHER TRAILBLAZER OWNERS HAVE BAD IGNITION SWITCHES/ ELECTRICAL ISSUES THAT CAUSE THE VEHICLE TO LOSE POWER AT ALL SPEEDS. MY WIFE LOST POWER GOING ABOUT 35 MPH AND I HAD MY TWO CHILDREN ALONG WITH HER. THIS IS JUST ONE EXAMPLE, ON ONE OCCASION. GRANTED, I DO ACKNOWLEDGE THIS PROBLEM IS INTERMITTENT, IT STILL OCCURS AT RANDOM AND AT ALL SPEEDS. GM TELLS ME TO GO TO A DEALER AND HAVE THEM LOOK AT IT. I REFUSE TO PAY GM ANY MONEY TO HAVE A DEALERSHIP RIP ME OFF FOR AN IGNITION SWITCH THAT IS FLAWED AND REPLACE IT WITH THE SAME FAULTY OEM STYLE/MODEL NUMBER. I HAVE RAN A SCAN TOOL LOOKING FOR CODES AND IT DOESN'T HAVE ANY. LIKE STATED PREVIOUSLY, THIS IS ANOTHER LINE OF GM THAT IS PLAGUED WITH IGNITION AND ELECTRICAL ISSUES THAT GM REFUSES TO TAKE OWNERSHIP OF. THE MILEAGE I HAVE ENTERED IS APPROXIMATE. I CANNOT REMEMBER EXACT NUMBERS, BUT IT HAS HAPPENED FOR YEARS, INTERMITTENTLY. WHEN THE VEHICLE HAS COASTED TO IT'S FINAL DESTINATION AFTER LOSING POWER, IT STARTS UP AND DRIVES NORMAL AGAIN AFTER IT IS PUT BACK INTO PARK. ALSO KEEP IN MIND THAT IT DOESN'T SHOW ANY CHECK ENGINE LIGHTS, INDICATING A PROBLEM OR NEED OF SERVICING. AGAIN, PLEASE LOOK INTO THIS PRODUCT LINE AS I KNOW THE RESULT(S) WILL SHOW THAT GM IS LIABLE AND I DON'T WANT ANY FATALITIES BECAUSE NOBODY SPOKE UP ABOUT IT. *TR
NHTSA ODI #10592057
92,000 miles · May 15, 2014
Electrical SystemEngine
SPEEDOMETER RANDOMLY PARKS ON 0 MPH NO MATTER WHAT THE SPEED IS. THE FUEL GAUGE RANDOMLY INDICATES "E" OR OTHER INACCURATE FUEL READINGS REGARDLESS OF HOW MUCH FUEL IS IN THE TANK. THE CAR RANDOMLY STALLS WHEN STOPPED AT TRAFFIC LIGHTS. *TR
NHTSA ODI #10588558
NHTSA investigations
2RQ17002 · 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.
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.