NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
145 reportsClear category filter63,000 miles · May 12, 2009
Electrical SystemVehicle Speed Control
ON FEBRUARY 7, 2009, WE WERE DRIVING ON THE INTERSTATE. WHEN APPROACHING TRAFFIC I TOOK THE VEHICLE OFF OF CRUISE AND BEGAN TO SLOW DOWN. HOWEVER, THE SPEEDOMETER DID NOT MOVE. AFTER THAT, EVERYTIME I BEGAN TO ACCELERATE, THE SPEEDOMETER WOULD NOT MOVE. EVERYTIME I START THE CAR IT DROPS 5 MPH, BUT WHEN YOU USE CRUISE OR DO …
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ON FEBRUARY 7, 2009, WE WERE DRIVING ON THE INTERSTATE. WHEN APPROACHING TRAFFIC I TOOK THE VEHICLE OFF OF CRUISE AND BEGAN TO SLOW DOWN. HOWEVER, THE SPEEDOMETER DID NOT MOVE. AFTER THAT, EVERYTIME I BEGAN TO ACCELERATE, THE SPEEDOMETER WOULD NOT MOVE. EVERYTIME I START THE CAR IT DROPS 5 MPH, BUT WHEN YOU USE CRUISE OR DO A CONSTANT SPEED, IT STICKS AGAIN. WE ARE GETTING READY TO GO ON A BIG FAMILY VACATION AND DO NOT FEEL SAFE TAKING MY FAMILY IN A VEHICLE THAT YOU DON'T KNOW HOW FAST YOU ARE GOING. MY MECHANIC IS REPLACING THE CLUSTER WITH A USED ONE FROM THE LOCAL SALVAGE YARD. A USED ONE WITH LABOR IS STILL GOING TO COST ME $200 AND WHO KNOWS HOW LONG THAT ONE WILL LAST. I CANNOT BELIEVE WITH THIS MANY COMPLAINTS ABOUT THE SAME EQUIPMENT FAILURE THAT GM HASN'T DONE ANYTHING. IT'S JUST NOT SAFE! *TR
NHTSA ODI #10268522
55,000 miles · Apr 18, 2009
Electrical System
YESTERDAY MY DASHBOARD CONTROL PANEL WORKED GREAT. THIS MORNING (4/18/09) AS I WAS DRIVING TO MY BANK, I NOTICED THAT NONE OF THE GAUGES AND/OR LIGHTS WERE WORKING ( OIL GAUGE, TEMPERATURE GAUGE, BATTERY GAUGE, SPEEDOMETER, TACHOMETER, ETC). MAJOR SAFETY FACTOR. *TR
NHTSA ODI #10265950
75,425 miles · Mar 27, 2009
Electrical System
(SPEEDOMETER CLUSTER PROBLEMS) IT SEEMS TO BE A BIG PROB WITH CHEVY TRUCKS & SUVS. MY VEHICLE SPEEDOMETER CLUSTER IS NO WORKING, GM IS REFUSING TO RECALL THE 2004 TB. *TR
NHTSA ODI #10263211
Mileage unknown · Mar 24, 2009
Electrical System
I HAVE A 2004 CHEVY TRAILBLAZER EXTENDED SUV. MY CHECK ENGINE LIGHT HAS CONTINUOUSLY FLASH ON AND OFF SINCE HAVING THE TRUCK ONLY SIX MONTHS. IT HAS CONTINUED TO DO THIS FOR THE LIFE OF THE CAR AT ALMOST 70,000 MILES. ALSO, MY SPEEDOMETER NOW WORKS ONLY WHEN IT WANTS TO. AT FIRST WE THOUGHT IT WAS BECAUSE OF THE COLD WEATHER…
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I HAVE A 2004 CHEVY TRAILBLAZER EXTENDED SUV. MY CHECK ENGINE LIGHT HAS CONTINUOUSLY FLASH ON AND OFF SINCE HAVING THE TRUCK ONLY SIX MONTHS. IT HAS CONTINUED TO DO THIS FOR THE LIFE OF THE CAR AT ALMOST 70,000 MILES. ALSO, MY SPEEDOMETER NOW WORKS ONLY WHEN IT WANTS TO. AT FIRST WE THOUGHT IT WAS BECAUSE OF THE COLD WEATHER, NOW IT IS ALMOST 70 DEGREES AND WE HAVE THE SAME PROBLEM. SOUNDS AS IF THIS IF VERY COMMON IN THESE MODELS. SOMEONE NEEDS TO FIND A WAY TO COMPENSATE OWNERS FOR THESE COSTLY REPAIRS. *TR
NHTSA ODI #10262942
68,000 miles · Mar 21, 2009
Electrical System
THE SPEEDOMETER HAS BEEN FAILING CONSISTENTLY. SEVERAL OCCASIONS IT FAILS TO RETURN TO ZERO, REGISTERING 100MPH WHEN GPS SHOWS 35MPH. AFTER SEVERAL DAYS, IT WILL START WORKING NORMALLY - THEN FAULT AGAIN. MILES DRIVEN ON THE ODOMETER DOES NOT APPEAR TO BE AFFECTED. THE CONDITION IS STARTING TO SPREAD TO OTHER GAUGES, WITH THE…
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THE SPEEDOMETER HAS BEEN FAILING CONSISTENTLY. SEVERAL OCCASIONS IT FAILS TO RETURN TO ZERO, REGISTERING 100MPH WHEN GPS SHOWS 35MPH. AFTER SEVERAL DAYS, IT WILL START WORKING NORMALLY - THEN FAULT AGAIN. MILES DRIVEN ON THE ODOMETER DOES NOT APPEAR TO BE AFFECTED. THE CONDITION IS STARTING TO SPREAD TO OTHER GAUGES, WITH THE TACHOMETER SHOWING SEVERAL SIMILAR SYMPTOMS. *TR
NHTSA ODI #10262656
66,000 miles · Mar 16, 2009
Electrical System
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER EXT. WHILE STOPPED AT A TRAFFIC LIGHT, THE CONTACT NOTICED THAT THE SPEEDOMETER DISPLAYED 50 MPH. THE SPEEDOMETER BECAME INOPERABLE AND WOULD OFTEN BECOME STUCK AT ZERO. IN ADDITION, THE SPEEDOMETER WOULD OFTEN DISPLAY 100 MPH WHEN THE CONTACT WAS DRIVING LESS THAN 50 MPH. THE…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER EXT. WHILE STOPPED AT A TRAFFIC LIGHT, THE CONTACT NOTICED THAT THE SPEEDOMETER DISPLAYED 50 MPH. THE SPEEDOMETER BECAME INOPERABLE AND WOULD OFTEN BECOME STUCK AT ZERO. IN ADDITION, THE SPEEDOMETER WOULD OFTEN DISPLAY 100 MPH WHEN THE CONTACT WAS DRIVING LESS THAN 50 MPH. THE MANUFACTURER AND DEALER COULD NOT PROVIDE ANY ASSISTANCE. THE FAILURE MILEAGE WAS 66,000 AND CURRENT MILEAGE WAS LESS THAN 73,000.
NHTSA ODI #10262009
78,000 miles · Mar 15, 2009
Electrical System
DRIVING HOME FROM VACATION ON THE HIGHWAY IN A SNOWSTORM, WE REALIZED THE TACHOMETER WAS NO LONGER SHOWING THE CORRECT RPMS. IT WAS STUCK AROUND 4000 WHILE WE WERE GOING LESS THAN THAT. A LITTLE WHILE LATER WE NOTICED THAT WHILE WE WERE SLOWING DOWN FOR A RED LIGHT AND TRAVELING PROBABLY 10 MPH THE SPEEDOMETER WAS SHOWING 60 M…
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DRIVING HOME FROM VACATION ON THE HIGHWAY IN A SNOWSTORM, WE REALIZED THE TACHOMETER WAS NO LONGER SHOWING THE CORRECT RPMS. IT WAS STUCK AROUND 4000 WHILE WE WERE GOING LESS THAN THAT. A LITTLE WHILE LATER WE NOTICED THAT WHILE WE WERE SLOWING DOWN FOR A RED LIGHT AND TRAVELING PROBABLY 10 MPH THE SPEEDOMETER WAS SHOWING 60 MPH. WE QUICKLY STOPPED FOR GAS, THINKING MAYBE THOSE GAUGES WERE MALFUNCTIONING AS WELL, BUT THEY WEREN'T. WHEN WE ACCELERATED AGAIN, THE SPEEDOMETER RAISED FROM 60 TO EVENTUALLY OVER 120 MPH. EACH TIME WE SLOWED DOWN THE NEEDLE STUCK, THEN WHEN WE ACCELERATED IT WENT HIGHER. WHILE WE WERE DRIVING IN THE SNOWSTORM ON THE HIGHWAY, WE THINK WE WERE TRAVELING ABOUT 20 TO 30 MPH, BUT THE SPEEDOMETER WAS STILL OVER 120 MPH. THIS WAS SCARY BECAUSE UNDER NORMAL DRIVING CONDITIONS WE WOULD HAVE BEEN ABLE TO JUDGE OUR SPEED, BUT IN THE SNOW IT WAS HARD TO DO SO. ON MONDAY WE CALLED THE DEALERSHIP AND WERE TOLD THAT VEHICLES WITH UNDER 70,000 MILES THEY WOULD FIX BUT SINCE OURS HAD 78,000 WE WOULD HAVE TO PAY FOR REPAIRS. WE DECIDED WE CAN'T AFFORD THE REPAIRS, THEN A FEW DAYS LATER BOTH GAUGES STARTED WORKING PROPERLY ON THEIR OWN. WE ARE STILL LEERY OF TRUSTING THEM, AND WE ARE ASSUMING THEY WILL MALFUNCTION AGAIN. I CAN SEE THIS PROBLEM LEADING TO BEING TICKETED FOR SPEEDING AND POSSIBLY EVEN HAVING AN ACCIDENT DUE TO NOT KNOWING YOUR SPEED. *TR
NHTSA ODI #10261861
56,000 miles · Mar 2, 2009
Electrical System
MY SPEEDOMETER ON MY 2004 TRAILBLAZER DOESN'T RECORD THE EXACT SPEED. *TR
NHTSA ODI #10260513
Mileage unknown · Feb 27, 2009
Electrical System
WHEN I BOUGHT MY TRUCK EVERYTHING WAS FINE NOW THE GAS GAUGE, OIL GAUGE AND RPM GAUGE ARE NOT WORKING RIGHT AND I SEE THAT I AM NOT THE ONLY PERSON WITH THIS PROBLEM, IT WILL COST ABOUT $600 TO $700 DOLLARS TO FIX THIS AND WITH ECONOMY THE WAY IT IS I THINK CHEVY SHOULD DO SOMETHING ABOUT THIS. MY CAR IS A 2004 CHEVY TRAILBLAZER…
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WHEN I BOUGHT MY TRUCK EVERYTHING WAS FINE NOW THE GAS GAUGE, OIL GAUGE AND RPM GAUGE ARE NOT WORKING RIGHT AND I SEE THAT I AM NOT THE ONLY PERSON WITH THIS PROBLEM, IT WILL COST ABOUT $600 TO $700 DOLLARS TO FIX THIS AND WITH ECONOMY THE WAY IT IS I THINK CHEVY SHOULD DO SOMETHING ABOUT THIS. MY CAR IS A 2004 CHEVY TRAILBLAZER. *TR
NHTSA ODI #10260193
85,000 miles · Feb 24, 2009
Electrical SystemFuel System, Other
THE GAUGES ON MY 2004 CHEVROLET TRAILBLAZER DO NOT WORK. I HAD THIS SAME PROBLEM SEVERAL MONTHS AGO AND TOOK TO DEALERSHIP TO FIX, THEY SAID THERE WAS NOTHING WRONG. NOW MY WARRANTY IS OUT AND THEY AGAIN ARE NOT WORKING. IT IS NOT SAFE TO DRIVE WHEN THE SPEEDOMETER, TACHOMETER, OIL GAUGE, AND TEMPERATURE GAUGES DON'T WORK. A…
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THE GAUGES ON MY 2004 CHEVROLET TRAILBLAZER DO NOT WORK. I HAD THIS SAME PROBLEM SEVERAL MONTHS AGO AND TOOK TO DEALERSHIP TO FIX, THEY SAID THERE WAS NOTHING WRONG. NOW MY WARRANTY IS OUT AND THEY AGAIN ARE NOT WORKING. IT IS NOT SAFE TO DRIVE WHEN THE SPEEDOMETER, TACHOMETER, OIL GAUGE, AND TEMPERATURE GAUGES DON'T WORK. APPARENTLY THIS IS A PROBLEM THAT MANY OWNERS OF THE SAME MODEL HAVE REPORTED AND NOTHING HAS BEEN DONE ABOUT IT. THIS IS A SAFETY HAZZARD AND SHOULD HAVE A RECALL ASSOCIATED WITH IT WITH CHREVOLET FOOTING THE BILL. I GUESS IT WON'T BE ADDRESSED UNTIL DEATHS OR INJURIES ARE ASSOCIATED WITH IT. *TR
NHTSA ODI #10259850
NHTSA investigations
3RQ17002 · 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.
EA07009 · Fuel Pump Module Leaks Gasoline
Opened Jul 10, 2007 · Closed Aug 28, 2008
Status: closed (inferred from source dates) · Fuel System, Gasoline:delivery:fuel Pump
DURING THE COURSE OF THIS EA INVESTIGATION, ODI OBSERVED THAT THE MAJORITY OF THE COMPLAINTS (88%) AND WARRANTY CLAIMS (94%) WERE REPORTED FOR VEHICLES THAT ARE REGISTERED FOR USE IN THE SALT BELT REGION OF THE US.THIS AREA INCLUDES 20 STATES IN THE NORTHEAST, MID ATLANTIC AND THE MIDWEST REGIONS AND THE DISTRICT OF COLUMBIA.CONSUMERS IN THE SALT BELT REGION REPORTED TO ODI THAT THEY COULD SMELL FUEL VAPORS IN THEIR VEHICLES WHILE DRIVING.UPON FURTHER EXAMINATION OF THEIR VEHICLES, THEY DISCOVERED THAT FUEL VAPORS WERE COMING OUT OF THE TOP OF THE FUEL TANK. THIS CONDITION IS CAUSED BY CORROSION OF THE RETURN AND SENDER LINES OF THE FUEL PUMP MODULE.WATER AND ROAD SALT COLLECT ON TOP OF THE FUEL PUMP LEADING TO SMALL PINHOLES APPEARING ON THE FUEL LINES.FUEL MAY LEAK AND COLLECT ON TOP OF THE MODULE AND/OR SPILL ONTO THE GROUND.THE DATA EVALUATED UNDER THIS INVESTIGATION REFLECT A RELATIVELY LOW FREQUENCY OF OCCURRENCE THAT LARGELY ARISES IN SALT BELT STATES.GM HAS EXTENDED THE WARRANTY ON THE SUBJECT COMPONENT TO TEN YEARS OR 120,000 MILES.FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED AT THIS TIME; ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.FOR ADDITIONAL INFORMATION SELECT DOCUMENT SEARCH.
EA04021 · Brake Lamp Failure
Opened Aug 3, 2004 · Closed Nov 4, 2004
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
GM STATES THAT SOME BRAKE/TAIL LAMP BULBS CAN PREMATURELY BECOME INOPERATIVE DUE TO MALFUNCTIONING BRAKE/TAIL LAMP SOCKETS.ON MARCH 2, 2004, GM INITIATED A 6-YEAR/72,000 MILE SPECIAL POLICY FOR 989,487 SUBJECT VEHICLES TO INSPECT AND REPLACE THE REAR BRAKE/TAIL LAMP BULB SOCKET ASSEMBLIES.ON APRIL 4, 2004, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE04-032) BASED ON CONSUMER COMPLAINTS ALLEGING BRAKE LIGHTS NOT OPERATING WHEN THE BRAKE PEDAL IS DEPRESSED.ON AUGUST 3, 2004 ODI UPGRADED PE04-032 TO AN ENGINEERING ANALYSIS (EA04-021).BY LETTER DATED OCTOBER 27, 2004 GM NOTIFIED NHTSA THAT IT WILL CONDUCT A SAFETY RECALL (NHTSA # 04V527) COVERING SUBJECT VEHICLES THAT WERE NOT ALREADY REPAIRED UNDER GM'S SPECIAL POLICY.MY 2004 SUBJECT VEHICLES BUILT AFTER AUGUST 8, 2003 CONTAIN IMPROVED BRAKE LAMP ASSEMBLIES AND ARE NOT INCLUDED IN THE RECALL.GM DEALERS WILL INSTALL THE IMPROVED BRAKE LAMP ASSEMBLY ON SUBJECT VEHICLES BUILT ON AUGUST 8, 2003 AND EARLIER.THE ACTION TAKEN BY GM IS SUFFICIENT TO RESOLVE THE ISSUES RAISED BY THIS INVESTIGATION.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
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