NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
38 reportsClear category filter59,300 miles · Apr 27, 2011
Vehicle Speed Control
VEHICLE GOES INTO SHUTDOWN MODE WITH AN UNRESPONSIVE ACCELERATOR. MOTOR STILL RUNS BUT NO ACCELERATION. THIS IS A SERIOUS SAFETY ISSUE WHEN DRIVING IN TRAFFIC AS YOU HAVE NO POWER TO GET OUT OF TRAFFIC AND HARMS WAY. THERE IS NO WARNING THAT A PROBLEM IS IMMINENT. A REDUCED POWER LIGHT COMES ON AND YOU'RE STUCK. VEHICLE IN QUEST…
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VEHICLE GOES INTO SHUTDOWN MODE WITH AN UNRESPONSIVE ACCELERATOR. MOTOR STILL RUNS BUT NO ACCELERATION. THIS IS A SERIOUS SAFETY ISSUE WHEN DRIVING IN TRAFFIC AS YOU HAVE NO POWER TO GET OUT OF TRAFFIC AND HARMS WAY. THERE IS NO WARNING THAT A PROBLEM IS IMMINENT. A REDUCED POWER LIGHT COMES ON AND YOU'RE STUCK. VEHICLE IN QUESTION IS A 2004 CHEVROLET TRAILBLAZER. *TR
NHTSA ODI #10398042
61,725 miles · Feb 12, 2011
Vehicle Speed Control
THE SPEEDOMETER BEGAN TO BE ERRATIC AND WOULD NOT SHOW THE CORRECT SPEED. I COULD BE TRAVELING 40 MPH AND THE SPEEDOMETER WOULD SHOW 10 MPH. THEN IT WOULD JUMP TO 110 MPH, THEN ZERO. I WENT TO THE DEALER AND WAS TOLD A NEW CLUSTER BOARD WAS NEEDED. THE REPLACEMENT COST IS $600-$700. I DID AN INTERNET SEARCH AND FOUND OUT TH…
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THE SPEEDOMETER BEGAN TO BE ERRATIC AND WOULD NOT SHOW THE CORRECT SPEED. I COULD BE TRAVELING 40 MPH AND THE SPEEDOMETER WOULD SHOW 10 MPH. THEN IT WOULD JUMP TO 110 MPH, THEN ZERO. I WENT TO THE DEALER AND WAS TOLD A NEW CLUSTER BOARD WAS NEEDED. THE REPLACEMENT COST IS $600-$700. I DID AN INTERNET SEARCH AND FOUND OUT THAT HIS IS A WIDE SPREAD PROBLEM WITH THE TRAILBLAZER. I ALSO FOUND OUT THAT CHEV. HAS RECALLED OTHER VEHICLES WITH THE SAME PROBLEM, SUCH AS SUBURBAN, SILVERADO AND YUKON, BUT HAS NOT RECALLED THE TRAILBLAZER. THIS IS A SERIOUS SAFETY ISSUE. CHEVY MUST BE AWARE THAT THIS IS A BIG PROBLEM FOR TRAILBLAZER OWNERS THERE NEEDS TO BE A RECALL OF THE CLUSTER BOARD ON THE TRAILBLAZER. *TR
NHTSA ODI #10381696
125,000 miles · Jan 24, 2011
Fuel System, GasolineVehicle Speed Control
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THE CRUISE CONTROL AS WELL AS THE FUEL GAUGE NO LONGER FUNCTIONED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS TOLD THEY DO NOT KNOW HOW TO REMEDY THE FAILURES. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 100,000 AND THE CURRE…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THE CRUISE CONTROL AS WELL AS THE FUEL GAUGE NO LONGER FUNCTIONED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE CONTACT WAS TOLD THEY DO NOT KNOW HOW TO REMEDY THE FAILURES. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 100,000 AND THE CURRENT MILEAGE WAS 115,000.
NHTSA ODI #10378404
87,240 miles · Jan 7, 2011
Vehicle Speed Control
SPEEDOMETER ON MY 2004 TRAILBLAZER HAS BECOME ERRATIC. SOMETIME NO SPEED. SOMEITMES STUCK ON 90MPH WHETHER I'M MOVING OR NOT. CURRENTLY STUCK ABOVE THE 120MPH MARK.
NHTSA ODI #10375903
68,000 miles · Dec 7, 2010
Vehicle Speed Control
I HAVE SAFETY CONCERNS IN REGARDS OF MY VEHICLE. WHILE DRIVING, MY SPEEDOMETER IS READING OFF WRONG NUMBERS. FOR EXAMPLE, I CAN BE DRIVING 60MPH, BUT THE SPEEDOMETER IS READING AT 80MPH. IT IS A REAL CONCERN FOR ME BECAUSE I HAVE KNOW IDEA HOW FAST I'M DRIVING. NOW THAT A LOT OF CITIES HAVE PHOTO-ENFORCED CAMERAS TO RECORD HOW F…
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I HAVE SAFETY CONCERNS IN REGARDS OF MY VEHICLE. WHILE DRIVING, MY SPEEDOMETER IS READING OFF WRONG NUMBERS. FOR EXAMPLE, I CAN BE DRIVING 60MPH, BUT THE SPEEDOMETER IS READING AT 80MPH. IT IS A REAL CONCERN FOR ME BECAUSE I HAVE KNOW IDEA HOW FAST I'M DRIVING. NOW THAT A LOT OF CITIES HAVE PHOTO-ENFORCED CAMERAS TO RECORD HOW FAST YOU ARE DRIVING, I HAVE TO GUESS HOW FAST I'M GOING AND HOPE THAT I DON'T RECEIVE A TICKET IN THE MAIL. I HAVE BEEN RESEARCHING THIS PARTICULAR PROBLEM AND I SEE SEVERAL COMPLAINTS ON THIS TOPIC. UNFORTUNATELY, MY WARRANTY IS EXPIRED SO I WILL HAVE TO PAY OUT OF POCKET. I HOPE GM SEES THIS AND CONSIDER A RECALL
NHTSA ODI #10370129
66,547 miles · Nov 27, 2010
Electrical SystemVehicle Speed Control
SPEEDOMETER SHOW 40 DOING 60 OR SO CAN NOT REALLY TELL HOW FAST I AM GOING TACHOMETER NOT WORKING RIGHT READING ON THE INTERNET THIS IS A SEVERE PROBLEM GM RECALL TRUCKS AND SOME OTHER MODELS WHY NOT THE TRAILBLAZERS
NHTSA ODI #10368815
121,000 miles · Sep 8, 2010
Vehicle Speed Control
TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE THROTTLE BODY FAILED WHILE THE CONTACT WAS AT A STOP LIGHT CAUSING THE VEHICLE TO STALL. THE VEHICLE RESTARTED IMMEDIATELY AND THERE WERE NO WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS DRIVEN TO A MECHANIC WHERE THEY INSPECTED AND REPLACED THE THROTTLE BODY AT HER EXPENSE FOR…
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TL*THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER. THE THROTTLE BODY FAILED WHILE THE CONTACT WAS AT A STOP LIGHT CAUSING THE VEHICLE TO STALL. THE VEHICLE RESTARTED IMMEDIATELY AND THERE WERE NO WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS DRIVEN TO A MECHANIC WHERE THEY INSPECTED AND REPLACED THE THROTTLE BODY AT HER EXPENSE FOR $200. THE DEALER WAS ALSO CALLED AND INFORMED HER TO BRING THE VEHICLE IN FOR DIAGNOSTIC TESTING BUT SHE INFORMED THEM THAT SHE WOULD TAKE THE VEHICLE TO ANOTHER MECHANIC AND THEY WILL REPLACE THE THROTTLE BODY. THE MANUFACTURER WAS CALLED, FILED A CLAIM AND WAS ALSO INFORMED TO CONTACT NHTSA AND FILE A CLAIM. THE FAILURE MILEAGE WAS 121,000. UPDATED 12/8/10. *LJ THE CONSUMER STATED THE THROTTLE BODY FAILED MANY TIMES AND THE LAST TIME IT FAILED, THE CONSUMER WAS APPROACHING A RED LIGHT AND THE VEHICLE COMPLETELY STALLED. UPDATED 12/13/10
NHTSA ODI #10354509
56,642 miles · Mar 2, 2010
Vehicle Speed ControlCrashInjury
IN MY 2004 CHEVROLET TRAILBLAZER I WAS APPLYING THE BRAKES. THE BRAKES FAILED, AND THE VEHICLE ACCELERATED. *TR
NHTSA ODI #10315345
Mileage unknown · Feb 27, 2010
Vehicle Speed Control
MY SUV HAS LESS THAN 70,000 MILES AND ALL OF A SUDDEN IT STOPPED SHOWING ME THE SPEED THAT I AM GOING. IT JUST SITS ON ZERO AND IT STOPPED SHOWING ME MY GAS, IT SITS ON E,...THIS IS A HUGE AND DANGEROUS PROBLEM. I TRIED TO CONTACT CHEVY BUT HAVE NOT BEEN SUCCESSFUL...I HAVE A 2004 CHEVY TRAILBLAZER! I HAVE NEVER BEEN IN AN AC…
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MY SUV HAS LESS THAN 70,000 MILES AND ALL OF A SUDDEN IT STOPPED SHOWING ME THE SPEED THAT I AM GOING. IT JUST SITS ON ZERO AND IT STOPPED SHOWING ME MY GAS, IT SITS ON E,...THIS IS A HUGE AND DANGEROUS PROBLEM. I TRIED TO CONTACT CHEVY BUT HAVE NOT BEEN SUCCESSFUL...I HAVE A 2004 CHEVY TRAILBLAZER! I HAVE NEVER BEEN IN AN ACCIDENT OR ANYTHING LIKE THAT. I LOVED MY VEHICLE AND TOOK VERY GOOD CARE OF IT.... *TR
NHTSA ODI #10314869
74,100 miles · Feb 3, 2010
Vehicle Speed Control
I WAS DRIVING AT HIGHWAY SPEED (APPROXIMATELY 65MPH) WITH THE CRUISE CONTROL SET, WHEN MY VEHICLE SUDDENLY RESPONDED LIKE I HAD SLAMMED THE GAS PEDAL DOWN TO THE FLOOR. MY SPEED CLIMBED RAPIDLY, BUT I HAD THE PRESENCE OF MIND TO DROP THE TRUCK INTO NEUTRAL (THE TACHOMETER CONTINUED TO BE AT ITS MAXIMUM LEVEL AND THE ENGINE STILL…
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I WAS DRIVING AT HIGHWAY SPEED (APPROXIMATELY 65MPH) WITH THE CRUISE CONTROL SET, WHEN MY VEHICLE SUDDENLY RESPONDED LIKE I HAD SLAMMED THE GAS PEDAL DOWN TO THE FLOOR. MY SPEED CLIMBED RAPIDLY, BUT I HAD THE PRESENCE OF MIND TO DROP THE TRUCK INTO NEUTRAL (THE TACHOMETER CONTINUED TO BE AT ITS MAXIMUM LEVEL AND THE ENGINE STILL WHINED HIGH) AND STEER TO SAFETY, ACROSS SEVERAL LANES OF TRAFFIC, TO THE BREAKDOWN LANE. WHEN I SHUT THE VEHICLE OFF AND TURNED IT BACK ON AGAIN, THIS ISSUE WAS NO LONGER PRESENT. *TR
NHTSA ODI #10304092
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.
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.
PE04032 · Brake Lamp Failure
Opened Apr 6, 2004 · Closed Aug 3, 2004
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS INVESTIGATION ON MODEL YEAR (MY) 2002-04 CHEVROLET TRAILBLAZER VEHICLES.GM REPORTS THAT OTHER VEHICLES SHARING THIS PLATFORM AND BRAKE LAMP DESIGN ARE THE MY 2002-2004 CHEVROLET TRAILBLAZER EXT; GMC ENVOY, XL, XUV; OLDSMOBILE BRAVADA AND 2004 BUICK RAINIER.COMPLAINTS ALLEGE THAT THE REAR BRAKE LAMP DOES NOT OPERATE WHEN THE BRAKE PEDAL IS DEPRESSED.THERE IS NO INDICATION TO THE DRIVER FROM INSIDE THE VEHICLE THAT ONE OR MORE BRAKE LAMPS BULBS ARE NOT FUNCTIONING.GM FOUND THAT HEAT FROM THE BULB COULD DEFORM THE LAMP SOCKET, PRODUCE ELECTRICAL ARCING AND AN INOPERATIVE BULB.TO CORRECT THE CONDITION, GM CHANGED THE BULB TO A BULB THAT TRANSMITS LESS HEAT TO THE SOCKET AND CHANGED THE SOCKET TO A THERMOPLASTIC POLYMER TO IMPROVE THERMAL STABILITY.THESE CHANGES WERE IMPLEMENTED INTO PRODUCTION VEHICLES ON OCTOBER 1, 2003.GM IMPLEMENTED A SPECIAL POLICY BY NOTIFYING CONSUMERS THAT IF THEY SHOULD EXPERIENCE A BRAKE LAMP FAILURE TO GO TO THEIR GM DEALERSHIP TO HAVE THE CIRCUIT BOARD CONTAINING THE BRAKE LAMP REPLACED ALONG WITH NEW BULBS.THIS POLICY IS GOOD FOR THE FIRST 6 YEARS OR 72,000 MILES OF THE LIFE OF THE VEHICLE.ODI WILL UPGRADE THIS INVESTIGATION TO EA 04-021 AND INCLUDE THE ABOVE MENTIONED VEHICLES.
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