THE SPEEDOMETER ON MY 2005 CHEVROLET TRAILBLAZER WENT HAYWIRE LAST WEEKEND. ON TUESDAY WITH MY WIFE DRIVING OUR 3 MONTH OLD INFANT TO DAYCARE, AND HERSELF TO SCHOOL, THE GAUGE ON THE SPEEDOMETER QUIT COMPLETELY AND CURRENTLY IS POINTING STRAIGHT DOWN AND WILL NOT MOVE REGARDLESS OF THE SPEED THAT I AM TRAVELING. *TR
2005 Chevrolet Trailblazer
Owner reports · Recalls · Investigations
More warning signs than most Trailblazer years
Owner complaints for the 2005 Chevrolet Trailblazer are substantially higher than the model-year median of 87.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Trailblazer years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
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.
Electrical System complaints
617 reportsTHE VEHICLE IN QUESTION IS A 2005 CHEVROLET TRAILBLAZER WITH UNDER 40,000 MILES AND VERY WELL-MAINTAINED. THIS IS A CONTINUING CONCERN AND HAVE HAD THE DEALER MECHANICS LOOK AT THIS PROBLEM. WHILE DRIVING AT ANY SPEED, THE LIGHTS WILL DIM DRAMATICALLY WHEN THE ACCELERATOR PEDAL IS RELEASED. THE HEADLIGHTS AND INTERIOR LIGHTS D…
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THE VEHICLE IN QUESTION IS A 2005 CHEVROLET TRAILBLAZER WITH UNDER 40,000 MILES AND VERY WELL-MAINTAINED. THIS IS A CONTINUING CONCERN AND HAVE HAD THE DEALER MECHANICS LOOK AT THIS PROBLEM. WHILE DRIVING AT ANY SPEED, THE LIGHTS WILL DIM DRAMATICALLY WHEN THE ACCELERATOR PEDAL IS RELEASED. THE HEADLIGHTS AND INTERIOR LIGHTS DIM AND RETURN AFTER ACCELERATING FOR ANY LENGTH OR MAGNITUDE AND THEN RETURN TO NORMAL BRIGHTNESS. TYPICALLY, THEY WILL DIM 3 TIMES. I AM CONCERNED ABOUT HOW SEVERE THIS COULD BECOME. THE DEALERSHIP SAID GM ACKNOWLEDGES THIS HAPPENING BUT SAYS IT IS NORMAL AND NO REPAIR IS AVAILABLE. THIS DOES NOT HAPPEN ALL THE TIME BUT DOES HAPPEN 2-3 TIMES A WEEK AND INCONSISTENTLY. I CANNOT IDENTIFY WHAT CAUSES IT OR WHAT CONDITIONS CONSISTENTLY EXIST. HOWEVER, THIS CANNOT BE NORMAL OR SAFE. *TR
THE SPEEDOMETER DOES NOT REGISTER THE CORRECT SPEED ALL THE TIME. I WAS DRIVING DOWN THE HIGHWAY AT 70 MPH AND THE CAR SAID I WAS DOING 110MPH. THE DEALER SAID FILE A COMPLAINT BECAUSE THEY GET THIS PROBLEM A LOT. THERE HAVE BEEN RECALLS ON OTHER GM CARS WITH THE SAME GAUGES AS THE 2005 TRAILBLAZER. SO WHY HAS THERE NOT BEEN…
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THE SPEEDOMETER DOES NOT REGISTER THE CORRECT SPEED ALL THE TIME. I WAS DRIVING DOWN THE HIGHWAY AT 70 MPH AND THE CAR SAID I WAS DOING 110MPH. THE DEALER SAID FILE A COMPLAINT BECAUSE THEY GET THIS PROBLEM A LOT. THERE HAVE BEEN RECALLS ON OTHER GM CARS WITH THE SAME GAUGES AS THE 2005 TRAILBLAZER. SO WHY HAS THERE NOT BEEN A RECALL FOR THE TRAILBLAZER? *TR
SPEEDOMETER WORKED FINE THEN STARTED GOING IN AND OUT, NOW COMPLETELY STOPPED WORKING, SPOKE WITH SEVERAL OTHER TRAILBLAZER OWNERS SAME PROBLEM, SPOKE WITH A WORKER AT GM STATED SEVERAL VEHICLES HAVE BEEN REPAIRED FOR PROBLEM. *TR
WHEN DRIVING AT NIGHT TYPICALLY WHILE "COASTING" BETWEEN 30-50 MPH MY HEADLIGHTS ON MY TRAILBLAZER DIM, THE BATTERY CHARGE GOES DOWN, AND THE BLOWER STOPS WORKING FOR JUST A SECOND. AFTER RESEARCHING THIS ON THE INTERNET I HAVE NOTICED THAT MANY OTHER PEOPLE ARE HAVING A SIMILAR, AND UNRESOLVED PROBLEM WITH THEIR TRAILBLAZERS A…
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WHEN DRIVING AT NIGHT TYPICALLY WHILE "COASTING" BETWEEN 30-50 MPH MY HEADLIGHTS ON MY TRAILBLAZER DIM, THE BATTERY CHARGE GOES DOWN, AND THE BLOWER STOPS WORKING FOR JUST A SECOND. AFTER RESEARCHING THIS ON THE INTERNET I HAVE NOTICED THAT MANY OTHER PEOPLE ARE HAVING A SIMILAR, AND UNRESOLVED PROBLEM WITH THEIR TRAILBLAZERS AS WELL. THIS IS DANGEROUS BECAUSE HEADLIGHTS ARE NECESSARY, ALSO SOMETHING THAT SHOULD NOT BE A CONSISTENCY WITH MANY CONSUMERS. MINE IS A 2005 CHEVROLET TRAILBLAZER LS. I HOPE IS MATTER IS LOOKED INTO MORE SINCE THERE IS A HUGE PROBLEM THAT MANY CUSTOMERS ARE HAVING THAT IS GETTING IGNORED. WE NEED SOMEONE TO LOOK OUT FOR US! *TR
MY VEHICLE HEADLIGHTS IN MY 2005 CHEVROLET TRAILBLAZER, BLINK, FLICKER OR FLASH WHEN TOO MUCH POWER IS GOING IN, I DON'T THINK THIS VEHICLE HAS A BIG ENOUGH ALTERNATOR, BUT THE DEALER OR GM WILL NOT DO ANYTHING TO HELP ME, THEY SAID ITS NORMAL. IF ITS NORMAL THAT THE HEADLIGHTS FLICKER, I WOULD HAVE NEVER BOUGHT THIS VEHICLE. …
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MY VEHICLE HEADLIGHTS IN MY 2005 CHEVROLET TRAILBLAZER, BLINK, FLICKER OR FLASH WHEN TOO MUCH POWER IS GOING IN, I DON'T THINK THIS VEHICLE HAS A BIG ENOUGH ALTERNATOR, BUT THE DEALER OR GM WILL NOT DO ANYTHING TO HELP ME, THEY SAID ITS NORMAL. IF ITS NORMAL THAT THE HEADLIGHTS FLICKER, I WOULD HAVE NEVER BOUGHT THIS VEHICLE. IT IS JUST SO FRUSTRATING TO HAVE A VEHICLE IN A SHOP WHEN YOU NEED IT FOR DAY TO DAY LIVING. THIS HAS BEEN GOING ON FOR 8 MONTHS NOW. THIS COULD KILL SOMEONE AND ACCORDING TO MULTIPLE BLOG SITES THIS IS A PROBLEM FOR A LOT OF PEOPLE. *TR
2005 CHEVY TRAILBLAZER V6 LS SPEEDOMETER HAS FAILED. THIS IS EXTREMELY DANGEROUS. CHEVY HAS REFUSED TO ISSUE A RECALL ALTHOUGH THERE ARE HUNDREDS, IF NOT THOUSANDS OF COMPLAINTS. MY SPEEDOMETER OFTEN READS 0-40 MPH ON THE HIGHWAY. I HAVE A 3 AND 1 YEAR OLD WHO ARE WITH ME EVERY DAY IN THIS VEHICLE. THE FUEL GAUGE HAS ALSO…
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2005 CHEVY TRAILBLAZER V6 LS SPEEDOMETER HAS FAILED. THIS IS EXTREMELY DANGEROUS. CHEVY HAS REFUSED TO ISSUE A RECALL ALTHOUGH THERE ARE HUNDREDS, IF NOT THOUSANDS OF COMPLAINTS. MY SPEEDOMETER OFTEN READS 0-40 MPH ON THE HIGHWAY. I HAVE A 3 AND 1 YEAR OLD WHO ARE WITH ME EVERY DAY IN THIS VEHICLE. THE FUEL GAUGE HAS ALSO FAILED. I HAVE TO RELY ON MY TRIPOMETER TO KNOW WHEN TO REFUEL. I CANNOT AFFORD TO RUN OUT OF GAS WITH 2 YOUNG CHILDREN, ESPECIALLY WITH THE NEW ENGLAND WINTER AROUND THE CORNER. PLEASE, PLEASE, PLEASE INVESTIGATE THIS ISSUE AND REQUIRE CHEVY TO TAKE IMMEDIATE ACTION. WITH THE ECOMONY SO BAD, STRUGGLING TO MAKE ENDS MEET, AND THE $400+ MONTHLY PAYMENT FOR THIS VEHICLE THERE'S NO WAY I COULD AFFORD TO HAVE A DEALERSHIP FIX THESE ISSUES. THANK YOU!!! *TR
I HAVE AN 2005 CHEVY TRAILBLAZER THAT THE LIGHTS CONSTANTLY ARE FLASHING. THEY DIM AND THEN COME VERY BRIGHT AGAIN NON-STOP. THIS CAN NOT BE SAFE BECAUSE FOR SEVERAL INSTANCES THEY ARE SO DIM THAT YOU CAN'T SEE IN THE DARK. I HAVE HAD THE VEHICLE IN SEVERAL TIMES WHEN IT WAS UNDER WARRANTY AND GM SAID IT WAS NORMAL WHEN THE F…
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I HAVE AN 2005 CHEVY TRAILBLAZER THAT THE LIGHTS CONSTANTLY ARE FLASHING. THEY DIM AND THEN COME VERY BRIGHT AGAIN NON-STOP. THIS CAN NOT BE SAFE BECAUSE FOR SEVERAL INSTANCES THEY ARE SO DIM THAT YOU CAN'T SEE IN THE DARK. I HAVE HAD THE VEHICLE IN SEVERAL TIMES WHEN IT WAS UNDER WARRANTY AND GM SAID IT WAS NORMAL WHEN THE FAN KICKS ON. WELL IT IS NOT NORMAL OR IS IT SAFE. I CAN NOT MANUALLY FLICK THE LIGHTS AS FAST AS THEY FLICKER WHEN I AM DRIVING DOWN THE ROAD. IT IS VERY UNSAFE AND GM NEEDS TO FIND A FIX FOR IT. *TR
HEADLIGHTS AND DASHLIGHTS FLICKER ERRATICALLY THAT IT ALMOST LOOKS LIKE YOU ARE FLASHING YOUR LIGHTS AT ONCOMING MOTORISTS. HAVE HAD IT TO THE DEALER MORE THAT SIX TIMES FOR THIS WITHOUT RESOLVE. THE DEALER SAYS IT IS NORMAL, AND THEY DON'T CARE IF WE GET KILLED. *TR
I HAVE A 2005 CHEVY TRAILBLAZER LT, AND I HAVE NOTICED THIS STRANGE SOUND LATELY WHEN I START IT UP AND IT GETS LOUDER AS YOU DRIVE IT. MY FATHER SAID THAT IT IS THE BEARINGS AND THE ALTERNATOR, SO I DECIDED TO LOOK IT UP ON THE INTERNET AND SAW MULTIPLE COMPLAINTS ON THIS ISSUE WITH THIS PARTICULAR MODEL. I WAS TOLD TO FILE A …
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I HAVE A 2005 CHEVY TRAILBLAZER LT, AND I HAVE NOTICED THIS STRANGE SOUND LATELY WHEN I START IT UP AND IT GETS LOUDER AS YOU DRIVE IT. MY FATHER SAID THAT IT IS THE BEARINGS AND THE ALTERNATOR, SO I DECIDED TO LOOK IT UP ON THE INTERNET AND SAW MULTIPLE COMPLAINTS ON THIS ISSUE WITH THIS PARTICULAR MODEL. I WAS TOLD TO FILE A COMPLAINT ON A SITE, AND WAS DIRECTED BY MANY OTHERS WHO HAVE EXPERIENCED THIS ISSUE. I AM NOT HAPPY, AND I STILL OWE ON THIS VEHICLE AND THE WARRANTY IS CONVENIENTLY UP JUST AS THIS IS HAPPENING. I WANT THIS CORRECT, AND SOMEONE CONTACTED GM AND THEY STATED THAT THERE IS AN ISSUE WITH THE PUMP AND THE ELECTRICAL, WELL THEN THEY NEED TO RECALL THIS VEHICLE AND FIX IT FOR FREE. *TR
Official recalls
206V417000 · Air Bags:frontal
Oct 31, 2006
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.
05V035000 · Visibility:windshield
Feb 3, 2005
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
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.
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