Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
290–25K
4125–50K
7850–75K
4775–100K
52100–150K
41150K+
288 reports with mileage · 79 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.
Electrical System. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Exterior Lighting. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel/propulsion System. Review the 38 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
25 crash reports11 fire reports22 injury reports
What owners actually said
367 reports
42,000 miles · Apr 22, 2008
Electrical System
THE MPH AND RPM GAUGES NOT WORKING. NEEDLE WOULD NOT GO DOWN TO ZERO. WOULD GET STUCK IN ONE MPH AND CONTINUE TO INCREASE FROM THERE. WAS ABLE TO GET IT DOWN TO ZERO IN 5MPH INCREMENTS BY STARTING AND SHUTTING DOWN THE ENGINE, BUT THEN AFTER DRIVING IT WOULD STICK AT 40 AND UP. THOUGHT IT WAS STRANGE THAT MY OTHER 2004 CHEVY T…
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THE MPH AND RPM GAUGES NOT WORKING. NEEDLE WOULD NOT GO DOWN TO ZERO. WOULD GET STUCK IN ONE MPH AND CONTINUE TO INCREASE FROM THERE. WAS ABLE TO GET IT DOWN TO ZERO IN 5MPH INCREMENTS BY STARTING AND SHUTTING DOWN THE ENGINE, BUT THEN AFTER DRIVING IT WOULD STICK AT 40 AND UP. THOUGHT IT WAS STRANGE THAT MY OTHER 2004 CHEVY TRUCK RECEIVED A RECALL LETTER FOR THE EXACT PROBLEM MY GMC WAS HAVING. HAD TO PAY OUT OF POCKET TO REPLACE DASH BOARD CLUSTER(OVER $500.00). I NEEDED TO KNOW THE SPEED I WAS DRIVING. VERY DANGEROUS SITUATION. *TR
NHTSA ODI #10225363
61,000 miles · Apr 14, 2008
Exterior Lighting
WHILE ACCELERATING HEADLIGHTS WILL PERIODICALLY DIM AND BRIGHTEN WITHOUT WARNING. *TR
NHTSA ODI #10224523
60,000 miles · Mar 31, 2008
Electrical System
THE SPEEDOMETER AND TACHOMETER ARE NOT WORKING AND THE CHECK ENGINE LIGHT IS COMING ON. *TR
NHTSA ODI #10222955
26,500 miles · Mar 31, 2008
Electrical System
TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE DRIVING 40 MPH, THE SPEEDOMETER SPORADICALLY FAILED AND DISPLAYED INACCURATE READINGS. THE CONTACT IS IN THE PROCESS OF HAVING THE VEHICLE INSPECTED. HE CALLED THE MANUFACTURER AND IS AWAITING THEIR RESPONSE. THE POWERTRAIN WAS UNKNOWN. THE FAILURE AND CURRENT MILEAGES WERE 26,500…
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TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE DRIVING 40 MPH, THE SPEEDOMETER SPORADICALLY FAILED AND DISPLAYED INACCURATE READINGS. THE CONTACT IS IN THE PROCESS OF HAVING THE VEHICLE INSPECTED. HE CALLED THE MANUFACTURER AND IS AWAITING THEIR RESPONSE. THE POWERTRAIN WAS UNKNOWN. THE FAILURE AND CURRENT MILEAGES WERE 26,500.
NHTSA ODI #10222925
71,838 miles · Mar 28, 2008
Power Train
TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE MAKING A TURN AT 40 MPH, THE CONTACT HEARD A LOUD BOOM AND A GRINDING NOISE. SHE HAD THE VEHICLE TOWED TO HER MECHANIC AND THEN TO THE DEALER. THE DEALER STATED THAT THE FRONT DRIVER SIDE DIFFERENTIAL CASING WAS CRACKED. THE PURCHASE DATE WAS UNKNOWN. THE CURRENT AND FAILURE MILEA…
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TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE MAKING A TURN AT 40 MPH, THE CONTACT HEARD A LOUD BOOM AND A GRINDING NOISE. SHE HAD THE VEHICLE TOWED TO HER MECHANIC AND THEN TO THE DEALER. THE DEALER STATED THAT THE FRONT DRIVER SIDE DIFFERENTIAL CASING WAS CRACKED. THE PURCHASE DATE WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 71,838.
NHTSA ODI #10222599
52,341 miles · Mar 5, 2008
Electrical System
SPEEDOMETER READS ERRATICALLY. *TR
NHTSA ODI #10220102
Mileage unknown · Feb 22, 2008
Electrical System
SPEEDOMETER HAS STOPPED WORKING PROPERLY. MOST OF THE TIME IT IS STUCK ABOVE 120 MPH. IT NEVER SHOWS THE CORRECT SPEED THE VEHICLE IS GOING. *TR
NHTSA ODI #10218872
Mileage unknown · Feb 13, 2008
Electrical System
I OWN A 2004 GMC ENVOY AND I LIKE OTHERS HAVE A SPEEDOMETER THAT HAS FAILED ALSO....AND THE TACHOMETER HAS ALSO FAILED...SOMETIMES THE SPEEDOMETER SHOWS THE SPEED BUT IT IS NOT THE CORRECT ONE...AS I WAS ON THE FREEWAY AND IT SHOWED I WAS GOING 10MPH....OTHER TIMES IT JUST SITS ON 0.... *TR
NHTSA ODI #10217971
67,196 miles · Feb 12, 2008
Electrical System
SPEEDOMETER REGISTERED IMPROPER SPEED WHEN TRAVELING ON HIGHWAY, WOULD STICK AT VARIOUS SPEEDS WHEN STOPPED. HAS COMPLETELY STOP WORKING. *TR
NHTSA ODI #10217776
Mileage unknown · Feb 11, 2008
Electrical System
MY SPEEDOMETER STARTED GOING BACK AND FORTH, THEN EVENTUALLY WOULD STICK AT A NUMBER. IT WOULD SEEM TO WORK AT ONE POINT AND THEN GO BACK AND FORTH AGAIN. GOING THROUGH TOWN, IT SHOWS 120 MPH AT MOST TIMES. WENT TO GM DEALER, PUT NEW SENSOR ON IT, DID NOT FIX PROBLEM. NOW HAVE ORDERED A NEW CLUSTER. NOT SURE IF ANY OF THE O…
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MY SPEEDOMETER STARTED GOING BACK AND FORTH, THEN EVENTUALLY WOULD STICK AT A NUMBER. IT WOULD SEEM TO WORK AT ONE POINT AND THEN GO BACK AND FORTH AGAIN. GOING THROUGH TOWN, IT SHOWS 120 MPH AT MOST TIMES. WENT TO GM DEALER, PUT NEW SENSOR ON IT, DID NOT FIX PROBLEM. NOW HAVE ORDERED A NEW CLUSTER. NOT SURE IF ANY OF THE OTHER GAUGES WORK CORRECTLY. THIS IS GOING TO COST OVER $450.00 AND FROM WHAT I HAVE READ, HUNDREDS OF THIS YEAR ENVOY HAVE THIS SAME PROBLEM. OUR PART WAS BACKORDERED, SO THAT MEANS THERE IS A HIGH VOLUME REQUESTING THIS SAME PART. IT SHOULD HAVE BEEN RECALLED A LONG TIME AGO!!! *TR
ON CERTAIN TRUCKS AND SPORT UTILITY VEHICLES, THE DRIVER WISHING TO SIGNAL A TURN BY MOVING THE DIRECTIONAL SIGNAL LEVER, (UP OR DOWN) MAY CAUSE THE FRONT MARKER/TURN LIGHTS AND REAR TURN LIGHTS TO FLASH IN A MANNER SIMILAR TO HAZARD WARNING, RATHER THAN FLASHING ON THE DESIRED SIDE ONLY.
Consequence & remedy
Consequence: THE DRIVER MAY NOT BE ABLE TO CLEARLY SIGNAL THEIR INTENTIONS TO TURN, CHANGE TRAVEL LANES, OR POTENTIALLY WARN OTHERS OF AN IMPAIRED VEHICLE OPERATING CONDITION INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE SUSPECT FLASHER MODULES WITH A NEW FLASHER MODULE DESIGNED WITH SEALED RELAYS AND MORE DURABLE CONTACT MATERIAL INSIDE OF THE RELAYS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 4, 2005. ISUZU BEGAN MAILING OWNER LETTERS ON AUGUST 4, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, ISUZU AT 1-800-255-6727, BUICK AT 1-866-608-8080, AND OLDSMOBILE AT 1-800-630-6537.
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
4
RQ17002 · 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.
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.
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
Additional source detail variants (3)
Exterior Lighting:turn Signal:flasher Unit
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
Exterior Lighting:turn Signal
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
Exterior Lighting:turn Signal:switch
BY LETTER DATED APRIL 29, 2005, GM NOTIFIED THE AGENCY THAT IT IS CONDUCTING ASAFETY RECALL ( NHTSA RECALL NO. 05V198 ) INVOLVING CERTAIN MODEL YEARS (MY) 2003-2004 ISUZU ASCENDER, CHEVROLET TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND MY 2004 BUICK RAINER VEHICLES.THE RECALL APPLIES TO VEHICLES BUILT FROM APRIL 2003 THROUGH NOVEMBER 2003 FOR A TOTAL VEHICLE POPULATION OF 286,478.GM REPORTS THE DIRECTIONAL/HAZARD SIGNALS FAILURE IS DUE TO STICKING CONTACTS ON ROUTING RELAYS IN THE FLASHER MODULE.GM WILL REPLACE THE FLASHER MODULE ON ALL INVOLVED VEHICLES.BASED ON GM'S SAFETY RECALL ACTION, THIS INVESTIGATION IS CLOSED.
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.
2004 GMC Envoy Problems, Complaints & Recalls | Skip That Year
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