Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
950–25K
18325–50K
37350–75K
28875–100K
224100–150K
57150K+
1,220 reports with mileage · 246 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 617 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel System, Gasoline. Review the 435 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Exterior Lighting. Review the 140 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
59 crash reports25 fire reports41 injury reports
What owners actually said
1,466 reports
500 miles · Jan 15, 2009
Electrical SystemExterior Lighting
MY 2005 TRAILBLAZERS HEADLIGHTS FLASH WHEN YOU LET UP OFF THE GAS PEDAL. ALSO, THE AMP GAUGE DROPS, THE ENGINE REVS DOWN AND THE INSIDE FANS AND LIGHTS DIM DOWN. THE FLASHING OF THE HEADLIGHTS IS GETTING WORSE, AND LIKE OTHERS HAVE REPORTED, THE TRAFFIC AHEAD THINKS YOU ARE BLINKING THEM TO EITHER PULL OVER, OR SPEED UP. I TO…
Read full complaint
MY 2005 TRAILBLAZERS HEADLIGHTS FLASH WHEN YOU LET UP OFF THE GAS PEDAL. ALSO, THE AMP GAUGE DROPS, THE ENGINE REVS DOWN AND THE INSIDE FANS AND LIGHTS DIM DOWN. THE FLASHING OF THE HEADLIGHTS IS GETTING WORSE, AND LIKE OTHERS HAVE REPORTED, THE TRAFFIC AHEAD THINKS YOU ARE BLINKING THEM TO EITHER PULL OVER, OR SPEED UP. I TOO NOTICE IT MORE IN THE COLDER MONTHS. I AGREE -THIS IS DEFINITELY A SAFETY HAZARD! SOMETHING NEEDS TO BE DONE ABOUT IT. I HAVE REPORTED THE PROBLEM, BUT THEY SAY NOTHING CAN BE DONE. PURCHASED THIS SUV BRAND NEW, HAD PROBLEM FROM THE BEGINNING. TOO MANY PEOPLE WITH SAME PROBLEM. GENERAL MOTORS SHOULD BE ASHAMED. *TR
NHTSA ODI #10255179
57,348 miles · Jan 13, 2009
Electrical System
I HAVE A 2005 CHEVROLET TRAILBLAZER LS V6, AND I WAS GOING DOWN THE INTERSTATE WHEN I NOTICE MY SPEEDOMETER READ 30 MPH. I KNEW I WAS GOING FASTER THAN THIS SO I PULLED OVER TO THE SIDE OF THE ROAD AND CUT THE ENGINE OFF AND RESTARTED IT. IT BEGAN TO WORK FINE UNTIL THE FOLLOWING MONDAY EVENING WHEN IT DID IT AGAIN, THIS TIME …
Read full complaint
I HAVE A 2005 CHEVROLET TRAILBLAZER LS V6, AND I WAS GOING DOWN THE INTERSTATE WHEN I NOTICE MY SPEEDOMETER READ 30 MPH. I KNEW I WAS GOING FASTER THAN THIS SO I PULLED OVER TO THE SIDE OF THE ROAD AND CUT THE ENGINE OFF AND RESTARTED IT. IT BEGAN TO WORK FINE UNTIL THE FOLLOWING MONDAY EVENING WHEN IT DID IT AGAIN, THIS TIME ONLY REGISTERING 0 MPH WHEN I WAS DRIVING APPROXIMATELY 30 MPH. FINALLY ON 01/13/08, I GOT IN IT TO GO TO WORK AND IT WAS REGISTERING 120 MPH BUT THE VEHICLE WAS AT A STANDSTILL. *TR
NHTSA ODI #10254875
Mileage unknown · Jan 12, 2009
Electrical System
I HAVE A 2005 TRAILBLAZER AND THE SPEEDOMETER IS NOT WORKING CORRECTLY SOMETIMES IS STAYS ON ZERO AND THEN THERE ARE TIMES IT READS 120MILES WHEN IM GUESSING I'M GOING AROUND 30 MILES AND THERE ARE TIMES WHEN IN PARK IT READS ANY WHERE FROM 40 TO 60 MPH. HAS OF NOW I DO NOT HAVE THE MEANS TO FIX THE PROBLEM AND NOT THAT I FEEL I…
Read full complaint
I HAVE A 2005 TRAILBLAZER AND THE SPEEDOMETER IS NOT WORKING CORRECTLY SOMETIMES IS STAYS ON ZERO AND THEN THERE ARE TIMES IT READS 120MILES WHEN IM GUESSING I'M GOING AROUND 30 MILES AND THERE ARE TIMES WHEN IN PARK IT READS ANY WHERE FROM 40 TO 60 MPH. HAS OF NOW I DO NOT HAVE THE MEANS TO FIX THE PROBLEM AND NOT THAT I FEEL I SHOULD HAVE TO PAY OUT OF POCKET SEEING HOW I BELIEVE THIS IS A GM PROBLEM AND NOT MINE ARE THE OTHER HUNDREDS OF GM OWNERS WITH THE SAME PROBLEM! THIS IS A SAFETY ISSUE THAT SHOULD BE RESOLVED AS SOON AS POSSIBLE....OH AND IT IS A EVERYTIME I DRIVE THIS GM PRODUCT OCCURRENCE,,,I NEVER KNOW WHAT SPEED I AM TRULY GOING!!! *TR
NHTSA ODI #10254704
100,000 miles · Jan 11, 2009
Electrical System
2005 CHEVY TRAIL BLAZER. I'VE HEARD SEVERAL COMPLAINTS ON THIS SPEEDOMETER SUBJECT, AND FROM WHAT I UNDERSTAND IT CAN BE A VERY EXPENSIVE PROCEDURE, HOPEFULLY MY COMPLAINT CAN PUSH FOR A RECALL. *TR
NHTSA ODI #10254673
58,000 miles · Jan 9, 2009
Air BagsCrashInjury
MY DAUGHTER HAD AN ACCIDENT ON 12/16/2008. SHE HAS(HAD) A 2005 CHEVROLET TRAILBLAZER LS, 2 WHEEL DRIVE SUV. WHILE DRIVING ON THE OHIO TURNPIKE DURING A SNOW STORM SHE LOST CONTROL AND HAD A HEAD ON CRASH WITH A CEMENT RETAINING WALL WHILE TRAVELING BETWEEN 25 TO 35 MILES PER HOUR. THE AIR BAG DID NOT DEPLOY DURING THE ACCIDENT A…
Read full complaint
MY DAUGHTER HAD AN ACCIDENT ON 12/16/2008. SHE HAS(HAD) A 2005 CHEVROLET TRAILBLAZER LS, 2 WHEEL DRIVE SUV. WHILE DRIVING ON THE OHIO TURNPIKE DURING A SNOW STORM SHE LOST CONTROL AND HAD A HEAD ON CRASH WITH A CEMENT RETAINING WALL WHILE TRAVELING BETWEEN 25 TO 35 MILES PER HOUR. THE AIR BAG DID NOT DEPLOY DURING THE ACCIDENT AND SHE SLAMMED HARD INTO THE STEERING WHEEL RESULTING IN A CONCUSSION, CHEST INJURIES, SORE WRIST, DIZZINESS, AND STILL HAS RINGING IN ONE EAR. SHE DID HAVE HER SAFETY BELT ON AT THE TIME OF THE ACCIDENT AND ALWAYS WEARS IT. WE ARE BAFFLED AS TO WHY THE AIR BAG DID NOT COME OUT AS IT WOULD HAVE SAVE HER MUCH PAIN. THE CAR IS A TOTAL WRECK AS DESCRIBED BY THE PONTIAC DEALER THAT HER INSURANCE COMPANY TOWED THE SUV TO FOR REPAIRS. THE TRAILBLAZER SUSTAINED MUCH DAMAGE SUCH AS A BENT FRAME, BROKEN TRANSMISSION, ALL OF THE MOTOR MOUNTS AND THE TRANSMISSION MOUNTS BROKE LOOSE FROM THE FRAME, BENT STEERING WHEEL, AND ALL PARTS FROM THE ENGINE FORWARD ARE EITHER GONE OR BENT BEYOND REPAIR. WITH THIS VIOLENT OF A CRASH NO ONE HAS BEEN ABLE TO TELL US WHY THE AIR BAGS DID NOT DEPLOY. WE BOUGHT THIS SUV USED FROM A CHEVY DEALER IN JULY OF 2005 AND IT HAD AROUND 8000 MILES ON IT AT THAT TIME. I WOULD LIKE TO KNOW IF THERE IS SOME WAY OF CHECKING THE FUNCTIONALLY OF THIS AIR BAG TO SEE IF THERE MAY BE A POSSIBLE PROBLEM WITH IT. HER CRASH WAS HEAD ON AND IN MY OPINION VIOLENT ENOUGH TO ACTIVATE THE DRIVER SIDE AIR BAG. ANY SUGGESTIONS AS TO WHAT WE SHOULD DO? *TR
NHTSA ODI #10254382
80,000 miles · Jan 8, 2009
Electrical System
05 CHEV. TRAILBLAZER SPEEDOMETER NOT WORKING. COMMON PROBLEM IN ALL MODELS OF THE TRAILBLAZER. GM NEEDS TO RECALL ALL MODELS AND FIX ACCORDINGLY. *TR
NHTSA ODI #10254333
115,000 miles · Jan 6, 2009
Unknown Or Other
SPEEDOMETER FAILS TO FUNCTION INTERMITTENTLY. MAY READ 0 MPH WHILE DRIVING AT FREEWAY SPEEDS, OR 100+ MPH WHILE AT A DEAD STOP. MAY READ NORMALLY AT OTHER TIMES. *TR
NHTSA ODI #10253996
29,540 miles · Jan 6, 2009
Electrical System
2005 CHEVY TRAILBLAZER SPEEDOMETER BROKEN ONLY HAS 29,540 MILES. ALL OF A SUDDEN IT STOP WORKING ONLY 3 YEARS OF OWNERSHIP, BROUGHT BRAND NEW. THIS IS AN EXPENSIVE PART TO PURCHASE AND VERY UNFAIR, ....*TR
NHTSA ODI #10253918
62,000 miles · Jan 5, 2009
Electrical System
I WAS DRIVING DOWN THE ROAD DRIVING ABOUT 40 MPH, WHEN I NOTICED THAT MY SPEEDOMETER WAS READING 80 MPH AND ABOVE. BY THE TIME I GOT HOME IT WAS ON 120 MPH AND NOW IT WONT GO BACK DOWN, IT JUST STAYS ON 80 MPH UNTIL I DRIVE IT, THEN IT JUMPS BACK UP AGAIN. *TR
NHTSA ODI #10253861
Mileage unknown · Jan 3, 2009
Electrical System
SPEEDOMETER WOULD BE READING A SPEED WHEN I WAS SITTING STILL AND WOULD JUST KEEP INCREASING UNTIL NOW IT SITS WAY PAST 120MPH AND MOVE AT ALL. *TR
CERTAIN VEHICLES ORIGINALLY BUILT WITH CLOTH SEATS THAT WERE EQUIPPED WITH AN AUTOMATIC AIR BAG PASSENGER SENSING SYSTEM AND LATER REUPHOLSTERED WITH AFTERMARKET LEATHER SEAT COVER KITS ARE INVOLVED. TESTING HAS INDICATED THAT THE AFTERMARKET LEATHER SEAT COVERS CAN CAUSE THE PASSENGER SENSING SYSTEM TO MALFUNCTION.
Consequence & remedy
Consequence: IF THE PASSENGER SENSING SYSTEM MALFUNCTIONS, THE FRONT AIR BAG ON THE PASSENGER SIDE MAY BE DISABLED WHEN IT SHOULD BE ENABLED, OR ENABLED WHEN IT SHOULD BE DISABLED. IN EITHER CASE, IN THE EVENT OF A CRASH THAT REQUIRES AIR BAG DEPLOYMENT, A FRONT PASSENGER'S LEVEL OF INJURY MAY BE INCREASED.
Remedy: BECAUSE A REPLACEMENT LEATHER SEAT COVER THAT IS COMPATIBLE WITH THE PASSENGER SENSING SYSTEM IS NOT AVAILABLE, GENERAL MOTORS (GM) WILL REPURCHASE THESE VEHICLES IN ACCORDANCE WITH THE TERMS STATED IN GM'S LETTER TO OWNERS. THE RECALL BEGAN ON NOVEMBER 6, 2006. OWNERS SHOULD CONTACT GM AT 1-877-477-1022 TO BEGIN THE PROCESS OF REPURCHASING THEIR VEHICLE.
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 212, 'WINDSHIELD MOUNTING.' THE WINDSHIELD URETHANE BEAD MAY NOT HAVE ADHERED TO THE BODY IN CERTAIN AREAS DURING THE CURE PROCESS.
Consequence & remedy
Consequence: IF A CRASH OCCURS, THE WINDSHIELD MAY NOT BE RETAINED, INCREASING THE RISK OF INJURY TO A VEHICLE OCCUPANT.
Remedy: DEALERS WILL REPLACE THE WINDSHIELD FREE OF CHARGE. THE RECALL BEGAN ON MARCH 10, 2005. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CHEVROLET AT 1-800-630-2438, OR GMC AT 1-866-996-9463.
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
2
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.
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.
Illustration