NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
617 reportsClear category filter56,114 miles · Apr 11, 2011
Electrical SystemFuel System, Gasoline
MARCH 30, 2011, I SPENT $80.00 ON FUEL TO FILL MY TRAILBLAZER WITH GAS. I STARTED DRIVING AND THE GAS GAUGE NEVER MOVED, AND WAS STILL SHOWING EMPTY WITH THE LOW FUEL WARNING CHIMING. WHEN I WAS ALMOST HOME THE FUEL GAUGE FINALLY STARTED MOVING BUT NEVER WENT PAST A HALF TANK. I INSPECTED THE VEHICLE TO SEE IF THERE WERE ANY …
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MARCH 30, 2011, I SPENT $80.00 ON FUEL TO FILL MY TRAILBLAZER WITH GAS. I STARTED DRIVING AND THE GAS GAUGE NEVER MOVED, AND WAS STILL SHOWING EMPTY WITH THE LOW FUEL WARNING CHIMING. WHEN I WAS ALMOST HOME THE FUEL GAUGE FINALLY STARTED MOVING BUT NEVER WENT PAST A HALF TANK. I INSPECTED THE VEHICLE TO SEE IF THERE WERE ANY SIGNS OF A FUEL LEAK AND NOTHING LOOKED OUT OF THE ORDINARY. WHEN I HAD TO LEAVE AGAIN TO RUN ERRANDS THE FUEL GAUGE WOULD MOVE, HOWEVER, IT WOULD GO BACK DOWN TO EMPTY WHEN I WAS STOPPED OR PUT THE CAR IN PARK. I HAVE ALSO HAD ISSUES WITH REAR TAIL LIGHT PANEL WIRES FRYING AND HAVING TO REPLACE THOSE WHEN THERE WERE NO APPARENT CAUSES (MOISTURE, ETC.). LIGHTS DIMMING WHILE I ROLL UP A WINDOW OR PUSH OTHER BUTTONS IN THE CAR (RADIO, CLIMATE CONTROL) AND LIGHTS IN CERTAIN AREAS OF THE CAR JUST BLOWING OUT. FUSES ARE FINE, ALTERNATOR AND BATTERY ARE FINE. WHY IS THIS VEHICLE HAVING SO MANY PROBLEMS AT 56,000 MILES? I UNDERSTAND THAT THESE ARE NOT LIFE THREATENING ISSUES, BUT WHAT IS NEXT. WHY DO I HAVE TO CONSTANTLY MONITOR MY MILEAGE JUST TO MAKE SURE I DON'T STALL OR RUN OUT OF GAS WHEN I AM DRIVING. ARE WE THE CUSTOMERS SUPPOSED TO SHELL OUT $$$ TO HAVE REPAIRS DONE CONTINUALLY ON DEFECTIVE EQUIPMENT AND COMPONENTS. I DON'T THINK SO. GMC NEEDS TO DRASTICALLY IMPROVE THE QUALITY AND DURABILITY OF THEIR PRODUCTS, AND STEP UP TO THE PLATE AND TAKE CARE OF THE CUSTOMERS THEY DO HAVE. WORD OF MOUTH IS WAY MORE EFFECTIVE THAN MILLIONS OF DOLLARS IN ADVERTISING.
NHTSA ODI #10396327
72,000 miles · Mar 29, 2011
Electrical System
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING VARIOUS SPEEDS THE INSTRUMENT CLUSTER SUDDENLY FAILED. THE FUEL GAUGE DISPLAYED THAT THE TANK WAS EMPTY WHEN THE CONTACT ADDED FUEL TO ITS CAPACITY. THE SPEEDOMETER WOULD ALSO DISPLAY THAT SHE WAS DRIVING AT HIGHER SPEEDS THAN NORMAL. THE V…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING VARIOUS SPEEDS THE INSTRUMENT CLUSTER SUDDENLY FAILED. THE FUEL GAUGE DISPLAYED THAT THE TANK WAS EMPTY WHEN THE CONTACT ADDED FUEL TO ITS CAPACITY. THE SPEEDOMETER WOULD ALSO DISPLAY THAT SHE WAS DRIVING AT HIGHER SPEEDS THAN NORMAL. THE VEHICLE WAS INSPECTED BY A DEALER WHO ADVISED HER THAT THE ENTIRE INSTRUMENTAL CLUSTER NEEDED TO BE REPLACED. THE MANUFACTURER ADVISED HER THAT THE VEHICLE WAS NOT INCLUDED IN ANY RECALLS AND OFFERED NO FURTHER ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 72,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10393572
131,112 miles · Mar 27, 2011
Electrical SystemVisibilityCrash
THE FRONT BLOWER STOPPED WORKING WHILE MY WIFE WAS COMING HOME FROM A TRIP WITH MY KIDS .THE TEMPERATURE OUTSIDE WAS 28 DEGREES THE WINDOWS FOGGED UP AND SHE HIT A DEER THAT SHE WOULD HAVE SEEN IF THE WINDOWS WEREN'T FOGGED.I HAVE REPLCED THE BLOWER RESISTOR SWITCH WHICH HAD A BURNT CONNECTOR IT LASTED 3 WEEKS AND HAS GONE OUT …
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THE FRONT BLOWER STOPPED WORKING WHILE MY WIFE WAS COMING HOME FROM A TRIP WITH MY KIDS .THE TEMPERATURE OUTSIDE WAS 28 DEGREES THE WINDOWS FOGGED UP AND SHE HIT A DEER THAT SHE WOULD HAVE SEEN IF THE WINDOWS WEREN'T FOGGED.I HAVE REPLCED THE BLOWER RESISTOR SWITCH WHICH HAD A BURNT CONNECTOR IT LASTED 3 WEEKS AND HAS GONE OUT AGAIN. THIS IS A VERY BAD PROBLEM BECAUSE EVEN WHEN YOU HAVE THIS PROBLEM REPAIRED IT STILL MALFUNCTIONS WITHOUT WARNING. THIS IS PUTTING MYFAMILY AT GREAT RISK. ONTHE OTHER HAND HAD I KNOWN THAT THERE WAS PROBLEMS WITH CHEVY TRAILBRAZERS AND DEFECTIVE PARTS I WOULD HAVE BROUGHT A TOYOTA. *TR
NHTSA ODI #10393009
94,800 miles · Mar 26, 2011
Electrical System
SPEEDOMETER CLUSTER MALFUNCTIONING. AFTER SEEING THAT THIS IS A VERY COMMON ISSUE WITH THESE MODELS AND OTHERS THAT DID HAVE A RECALL I FELT IT WAS MY DUTY TO FILE THIS COMPLAINT. THE SPEEDOMETER READS 70 WHEN I AM STOPPED AND WELL OVER 120 WHEN I' DOING 30 AS PER MY GPS
NHTSA ODI #10393469
125,000 miles · Mar 25, 2011
Electrical System
THE CLUSTER/INSTRUMENT PANEL ON MANY 2005 CHEVROLET TRAILBLAZER DOES NOT WORK, THE GAS GAUGE DOES NOT WORK, ALONG WITH THE SPEEDOMETER, AND THE BATTERY METER. THE FAILURE OF THESE FUNCTIONS CAN CAUSE SPEEDING/ DRIVING TO SLOW, WHICH COULD INTERN CAUSE AN ACCIDENT. THE GAS GAUGE ALWAYS SHOWS THAT THE TANK IS EMPTY EVEN AFTER A …
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THE CLUSTER/INSTRUMENT PANEL ON MANY 2005 CHEVROLET TRAILBLAZER DOES NOT WORK, THE GAS GAUGE DOES NOT WORK, ALONG WITH THE SPEEDOMETER, AND THE BATTERY METER. THE FAILURE OF THESE FUNCTIONS CAN CAUSE SPEEDING/ DRIVING TO SLOW, WHICH COULD INTERN CAUSE AN ACCIDENT. THE GAS GAUGE ALWAYS SHOWS THAT THE TANK IS EMPTY EVEN AFTER A FILL UP, WHICH COULD CAUSE YOU TO RUN OUT OF GAS, AND GET INTO AN ACCIDENT. THE ONLY WAY TO SOLVE THE PROBLEM IS TO REPLACE THE CLUSTER PANEL. *TR
NHTSA ODI #10392837
10,000 miles · Mar 23, 2011
Electrical SystemFuel System, Gasoline
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT ONE YEAR AGO THE SPEEDOMETER FAILED WHICH MADE IT IMPOSSIBLE FOR HER TO DETERMINE THE SPEED SHE WAS DRIVING. THE FUEL GAUGE WAS ALSO DISPLAYING THE INCORRECT READING, AND THE FUEL LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO P…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT ONE YEAR AGO THE SPEEDOMETER FAILED WHICH MADE IT IMPOSSIBLE FOR HER TO DETERMINE THE SPEED SHE WAS DRIVING. THE FUEL GAUGE WAS ALSO DISPLAYING THE INCORRECT READING, AND THE FUEL LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO PERFORMED A DIAGNOSTIC TEST FOR THE FUEL FAILURE WHICH INDICATED THAT THE FUEL SENDING SENSOR WAS DEFECTIVE. THE LOCAL MECHANIC DID NOT PERFORM A DIAGNOSTIC TEST FOR THE SPEEDOMETER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER FILED REPORT 71-930473192. THE FAILURE MILEAGE WAS 10,000 AND THE CURRENT MILEAGE WAS 110,000.
NHTSA ODI #10392584
81,000 miles · Mar 15, 2011
Electrical System
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE SPEEDOMETER MALFUNCTIONED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO PERFORMED A DIAGNOSTIC TEST AND INFORMED HER THAT THERE WERE NO ERROR CODES OR WARNING LIGHTS ILLUMINATED; THEREFORE, THEY WERE UNABLE TO REPAIR THE VEHICLE. THE CONTACT NOTIFIED …
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE SPEEDOMETER MALFUNCTIONED. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC WHO PERFORMED A DIAGNOSTIC TEST AND INFORMED HER THAT THERE WERE NO ERROR CODES OR WARNING LIGHTS ILLUMINATED; THEREFORE, THEY WERE UNABLE TO REPAIR THE VEHICLE. THE CONTACT NOTIFIED THE DEALER IN REGARDS TO THE FAILURE AND STATED THAT THERE WERE PROBLEMS WITH THE CHIPS IN THE COMPUTER AND THEY NEEDED TO BE REPLACED. THE DEALER WANTS THE CONTACT TO PAY FOR AN ADDITIONAL DIAGNOSTICS TEST ALTHOUGH THE LOCAL MECHANIC COMPLETED ONE. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 81,000.
NHTSA ODI #10390278
95,000 miles · Mar 10, 2011
Electrical System
2005 CHEVY TRAILBLAZER LT SPEEDOMETER FAILED. *TR
NHTSA ODI #10389685
62,173 miles · Mar 3, 2011
Electrical SystemVehicle Speed Control
TRAFFIC WAS HORRIBLE BUMPER TO BUMPER, I WAS DRIVING AND REALIZED NOT TO RUSH SO I STOOD IN THE FIRST LANE, AS I WAS DRIVING BUMPER TO BUMPER I ALWAYS DRIVE WITHIN ONE CAR LENGTHS IN CASE I GET REAR ENDED. AS I AM DRIVING BUMPER TO BUMPER ALL FOR A SUDDEN NEXT THING YOU KNOW MY CAR JUST SUDDENLY ACCELERATED AT INCREDIBLE SPE…
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TRAFFIC WAS HORRIBLE BUMPER TO BUMPER, I WAS DRIVING AND REALIZED NOT TO RUSH SO I STOOD IN THE FIRST LANE, AS I WAS DRIVING BUMPER TO BUMPER I ALWAYS DRIVE WITHIN ONE CAR LENGTHS IN CASE I GET REAR ENDED. AS I AM DRIVING BUMPER TO BUMPER ALL FOR A SUDDEN NEXT THING YOU KNOW MY CAR JUST SUDDENLY ACCELERATED AT INCREDIBLE SPEED I MANAGE TO SWERVE INTO THE EMERGENCY LANE TO AVOID CAUSING A MULTIPLE CAR PILEUP MY CAR DIED INSTANTLY I STARTED IT UP AGAIN AND IT JUST WANTED TO TAKE OFF AS IT DID BEFORE I TURNED THE CAR OFF THINKING TO MYSELF MY GOD WHAT JUST HAPPENED AND WHAT IS GOING ON, I AM TRYING TO CALM MY 12 YEAR OLD CHILD BECAUSE IT WAS THE MOST FRIGHTENING THING I AM MY FAMILY EVER WENT THRU. I PRESS THE BREAK AND JUST RELAX FOR A SECOND AND STARTED THE CAR UP AND IT WAS FINE. HOWEVER, MY NERVES WERE PRETTY MUCH SHAKEN, I HAD TAKEN THE CAR TO JJ AUTO SHOP IN HAYWARD WHO IS ASE CERTIFIED HE DID A DIAGNOSTIC ON THE VEHICLE HE SAID HE COULD NOT VERIFY WHAT I WAS SAYING, NO ERROR LIGHTS AND THE HISTORY WAS CLEAN. HE ALSO MENTIONED THE COMPUTER AT TIMES DOES NOT PICK UP A SPLIT OF A SECOND ACCELERATION. HE BELIEVES MY STORY AND SAID EVERYTHING IS DONE THRU COMPUTER SO THERE IS NO FINDING AS OF THE MOMENT. I WAS NOT SOLD ON THAT BUT HE ALSO RECOMMEND I COULD CHANGE THE BODY THROTTLE @ 700.00 BUT HE SAID I JUST DONT WANT YOU TO BUY THE PART SO YOU COULD JUST DRIVE IN THE SLOW LANE AND IF IT HAPPENS AGAIN TO SHIFT THE CAR INTO NEUTRAL AND TURN IT OFF ASAP> MY THING IS SINCE CARS ARE COMPUTERIZE THIS SHOULD HAVE WHY IS IT THEY COULD NOT VERIFY MY SITUATION AND ALSO BODY THROTTLE WHAT HE WAS LOOKING AT AND WHAT CHEVY THINKS IT WAS! SO MY COMPLAINT IS FOR CHEVY DID THEY OVERWRITE SOFTWARE TO OVERLOOK SUDDEN ACCELERATION? THE ONLY MAJOR ISSUE I HAD HAD WITH MY VEHICLE WAS WHEN THE SPEEDOMETER WENT CRAZY AS I WAS DRIVING 110 BUT WAS REALLY GOING 35MPH
NHTSA ODI #10388128
Mileage unknown · Feb 25, 2011
Electrical System
THE SPEEDOMETER BEGINS TO TICK AS I PRESS ON THE GAS PEDAL AND JUMPS ANYWHERE TO 80-100MPH AND I MAY BE ONLY GOING 30. IT STALLS AND THEN CONTINUES TO JUMP UNTIL IT IS READING OFF THE SCALE. IT NOW RESIDES OFF THE SCALE AND I HAVE NO WAY OF TELLING WHAT SPEED I AM TRAVELING AT OTHER THAN USING MY GPS. THE SAFETY CONCERNS OF N…
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THE SPEEDOMETER BEGINS TO TICK AS I PRESS ON THE GAS PEDAL AND JUMPS ANYWHERE TO 80-100MPH AND I MAY BE ONLY GOING 30. IT STALLS AND THEN CONTINUES TO JUMP UNTIL IT IS READING OFF THE SCALE. IT NOW RESIDES OFF THE SCALE AND I HAVE NO WAY OF TELLING WHAT SPEED I AM TRAVELING AT OTHER THAN USING MY GPS. THE SAFETY CONCERNS OF NOT KNOWING THE SPEED AT WHICH I AM TRAVELING ALONG WITH THE LEGAL ISSUES I MAY FACE IS WHY I AM FILING THIS COMPLAINT. *TR
NHTSA ODI #10384502
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.