THE OIL LEVEL INDICATOR IN THE DASH PANEL IS NO LONGER FUNCTIONING. A CALL TO THE DEALER WHERE CAR WAS PURCHASED CONFIRMS THAT THIS IS PART OF AN "INSTRUMENT CLUSTER" THAT ALSO CONTROLS THE SPEEDOMETER, AND THAT IT WILL PROBABLY MALFUNCTION AS WELL.
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.
What owners actually said
1,466 reportsI CURRENTLY OWN A 2005 CHEVY TRAILBLAZER. OVER THE PAST YEAR I HAVE A VARIETY ELECTRICAL PROBLEMS WITH MY BLAZER. IN THE JANUARY OF 2010 I HAD TO REPLACED BY AC / HEATER AS IT SIMPLY WENT OUT. WHEN THE VEHICLE WAS FIXED A CERTIFIED MECHANIC HE SHOWED US THE WIRING HARNESS THAT HAD SIMPLY MALFUNCTIONED AND MELTED ALL OF THE WIRES…
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I CURRENTLY OWN A 2005 CHEVY TRAILBLAZER. OVER THE PAST YEAR I HAVE A VARIETY ELECTRICAL PROBLEMS WITH MY BLAZER. IN THE JANUARY OF 2010 I HAD TO REPLACED BY AC / HEATER AS IT SIMPLY WENT OUT. WHEN THE VEHICLE WAS FIXED A CERTIFIED MECHANIC HE SHOWED US THE WIRING HARNESS THAT HAD SIMPLY MALFUNCTIONED AND MELTED ALL OF THE WIRES TOGETHER. NOW IN THE PAST THREE MONTHS MY GAS GAUGE HAS STOPPED WORKING, INDICATING THAT IT IS LOW ON FUEL OR EMPTY AND MY SPEEDOMETER IS NO LONGER FUNCTIONING. I AM VERY WORRIED ABOUT THE ELECTRICAL PROBLEMS AND THE RISK OF A POTENTIAL HAZARDS TO MYSELF AND MY FAMILY. *TR
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 5 MPH, THE CONTACT NOTICED THAT THE SPEEDOMETER DID NOT INDICATE THE CORRECT SPEED. OTHER COMPONENTS ON THE INSTRUMENT CLUSTER WERE ALSO NOT FUNCTIONING PROPERLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE INSTRUMENT CLUSTER NEED…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. WHILE DRIVING APPROXIMATELY 5 MPH, THE CONTACT NOTICED THAT THE SPEEDOMETER DID NOT INDICATE THE CORRECT SPEED. OTHER COMPONENTS ON THE INSTRUMENT CLUSTER WERE ALSO NOT FUNCTIONING PROPERLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED BUT THE PROBLEM OCCURRED AGAIN. THE FAILURE MILEAGE WAS APPROXIMATELY 98,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 114,000.
2005 CHEVROLET TRAILBLAZER...A COUPLE OF DAYS AGO, WHILE MY 15 YEAR OLD DAUGHTER WAS DRIVING THIS TRUCK THE SPEEDOMETER GOT STUCK ON 10MPH AND SHE COULD NOT TELL HOW FAST SHE WAS REALLY DRIVING. WE WERE ON A BACK COUNTRY ROAD (THANK GOD) NOT IN HEAVY TRAFFIC BUT I KNOW SHE HAD TO BE GOING AT LEAST 45MPH. SHE HAS JUST GOTTEN HE…
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2005 CHEVROLET TRAILBLAZER...A COUPLE OF DAYS AGO, WHILE MY 15 YEAR OLD DAUGHTER WAS DRIVING THIS TRUCK THE SPEEDOMETER GOT STUCK ON 10MPH AND SHE COULD NOT TELL HOW FAST SHE WAS REALLY DRIVING. WE WERE ON A BACK COUNTRY ROAD (THANK GOD) NOT IN HEAVY TRAFFIC BUT I KNOW SHE HAD TO BE GOING AT LEAST 45MPH. SHE HAS JUST GOTTEN HER LEARNER'S PERMIT A FEW WEEKS EARLIER AND DID NOT HAVE MUCH EXPERIENCE DRIVING SO THIS REALLY FREAKED HER OUT. NOW THE SPEEDOMETER WILL WORK WHEN YOU FIRST START THE TRUCK BUT IF YOU COME TO A STOP IT WILL STICK AGAIN AND AT TIMES IT WILL READ HIGHER THAN WHAT I AM ACTUALLY TRAVELING. LIKE THIS MORNING, UPON STARTING THE TRUCK BEFORE IT WAS EVER PUT INTO DRIVE THE SPEEDOMETER READ 10MPH. THIS COULD BE A VERY HAZARDOUS DEFECT AND GM SHOULD RECALL THIS PROBLEM AND FIX IT. IN RESEARCHING, I SEE THAT THERE HAVE BEEN MANY COMPLAINTS ABOUT THE SPEEDOMETERS IN THESE TRUCKS, YET GM HAS DONE NOTHING TO RESOLVE THE PROBLEM. IT IS COSTING CONSUMERS APPROX. $500-$750 TO REPAIR. I HAVE GOTTEN AN ESTIMATE OF $600 MYSELF BUT HAVE NOT HAD THE REPAIRS COMPLETED YET. NO MONEY TO DO SO AND HOPING MY WARRANTY WILL COVER IT. *TR
SPEEDOMETER MALFUNCTION. *LN
2005 CHEVY TRAILBLAZER...POWER TO INSTRUMENT PANEL INCLUDING RADIO CUTS IN AND OUT LEAVING A VARIETY OF WARNING LIGHTS LIT AND LOW FUEL WARNING AUDIO SIGNAL GOING OFF. RESETS WHEN IGNITION IS TURNED OFF, BUT HAPPENS AGAIN WHEN CAR IS STARTED AND HAPPENS IN IRREGULAR INTERVALS FOR THE ENTIRE TIME THE CAR IS RUNNING. THE DOOR LO…
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2005 CHEVY TRAILBLAZER...POWER TO INSTRUMENT PANEL INCLUDING RADIO CUTS IN AND OUT LEAVING A VARIETY OF WARNING LIGHTS LIT AND LOW FUEL WARNING AUDIO SIGNAL GOING OFF. RESETS WHEN IGNITION IS TURNED OFF, BUT HAPPENS AGAIN WHEN CAR IS STARTED AND HAPPENS IN IRREGULAR INTERVALS FOR THE ENTIRE TIME THE CAR IS RUNNING. THE DOOR LOCKS (INCLUDING HATCHBACK) DO NOT ALWAYS UNLOCK WHEN CAR IS STOPPED, AND INTERIOR LIGHTS AND RADIO SOMETIMES STAY ON. ALL GAUGES (GAS, OIL, TEMPERATURE, ETC) GO TO ZERO. AFTER TALKING TO A MECHANIC FRIEND, WE TOOK THE DASHBOARD APART, PULLED OUT THE CLUSTER AND PUT IT BACK IN. THAT APPEARS TO HAVE STOPPED THE PROBLEM FOR NOW, BUT WE HAVE NOT USED THE VEHICLE MUCH SINCE DOING THE REPAIR. WE HAVE BEEN TOLD IT COULD REQUIRE A NEW CLUSTER COSTING IN THE $400 RANGE NOT INCLUDING LABOR. IT IS INTERESTING THAT 2003-04 VEHICLES WITH THIS PROBLEM WERE COVERED BY A SPECIAL POLICY, BUT NOT THE 2005. *TR
SPEEDOMETER WILL SIT AT 0 MILES PER HOUR OR WILL BE 30 MILES PER HOUR LOWER. SPEEDOMETER WILL SIT BELOW 0 WHEN IDLE. WHEN I RESTART IT, IT MAY BE FINE OR GO BACK TO BELOW 0 TO VERY LOW MILES. I HAPPENS MORE WHEN WARMER AND RUNNING A WHILE. I SEE THAT IS A PROBLEM FOR MANY CHEVROLET TRAILBLAZERS.
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER LS (NA). THE CONTACT STATED THAT AFTER HAVING HER VEHICLE SERVICED AT A LOCAL REPAIR, THE DRIVER SIDE WINDOW WAS LEFT DOWN. AFTER THE VEHICLE WAS RETURNED TO HER, THE WINDOW WOULD NO LONGER MOVE UP. THE VEHICLE HAD NOT BEEN INSPECTED OR REPAIRED. THE FAILURE MILEAGE WAS APPROXIMAT…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER LS (NA). THE CONTACT STATED THAT AFTER HAVING HER VEHICLE SERVICED AT A LOCAL REPAIR, THE DRIVER SIDE WINDOW WAS LEFT DOWN. AFTER THE VEHICLE WAS RETURNED TO HER, THE WINDOW WOULD NO LONGER MOVE UP. THE VEHICLE HAD NOT BEEN INSPECTED OR REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 98,000. THE VIN WAS UNAVAILABLE.
ON 2005 CHEVY TRAILBLAZER LT MODEL, THE SPEEDOMETER DOESN'T WORK ANYMORE. WILL READ BELOW HOW FAST I'M ACTUALLY GOING. WILL WORK OFF AN ON, SO I ALWAYS HAVE TO PAY ATTENTION TO HOW THE NEEDLE IS MOVING. TAKING IT IN FOR A REPAIR SOON. *TR
TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING 35 MPH ON A SLIPPERY ROAD, THE BRAKE PEDAL EXTENDED TO THE FLOORBOARD WHEN DEPRESSED. THE VEHICLE WENT INTO A DITCH AS A RESULT AND ROLLED OVER TWICE, ENDING UPSIDE DOWN. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS DESTROYED. THE CURRENT AND…
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TL*THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING 35 MPH ON A SLIPPERY ROAD, THE BRAKE PEDAL EXTENDED TO THE FLOORBOARD WHEN DEPRESSED. THE VEHICLE WENT INTO A DITCH AS A RESULT AND ROLLED OVER TWICE, ENDING UPSIDE DOWN. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS DESTROYED. THE CURRENT AND FAILURE MILEAGES WERE UNKNOWN.
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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