2004 Chevrolet Trailblazer Ext 370 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2004 Chevrolet Trailblazer Ext 370, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Fuel system633.3%
- Electrical633.3%
- Engine15.6%
- Interior & seats15.6%
- Exterior lighting15.6%
- Airbags15.6%
- Visibility15.6%
- Brakes15.6%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
FILLER NECK TO GAS TANK LEAKING....DANGEROUS !! CAUSES THE CHECK ENGINE LIGHT TO STAY ON....
RECEIVED A LETTER FROM GM REGARDING POTENTIAL PROBLEM WITH FUEL TANK INLET VALVE. TOOK VEHICLE TO DEALER LEN STOLER, INC IN WESTMINSTER MD IN DECEMBER. PROBLEM WAS DIAGNOSED AS A FUEL TANK INLET VALVE FRACTURE. ON DEC 3RD 2015 FUEL TANK WAS REPLACED AND INSPECTION DONE. SUBSEQUENT TO SERVICE WHEN FUEL WAS PLACED IN VEHICLE GAS POURED OUT ON PAVEMENT. PRIOR TO THAT SERVICE THIS WAS NOT AN ISSUE ONLY THE SMELL OF FUEL IN THE INTERIOR AND A FEW DROPS OF FUEL NOTED. TOOK VEHICLE BACK TO DEALER AND PROBLEM NOW DIAGNOSED AS INLET PIPE FRACTURE. WAS TOLD I WOULD HAVE TO PAY FOR THIS SERVICE, DESPITE SERVICE DEPT HAVING NOT MENTIONED THIS WHEN FUEL TANK WAS REPLACED AND VEHICLE INSPECTED AND LEFT DEALER IN UNSAFE OPERATING CONDITION. PART WAS NOT AVAILABLE AND WAS TOLD I SHOULD DRIVE IT AND HAVE WORK DONE LATER. SINCE THIS PART IS CONNECTED TO FUEL TANK SHOULD HAVE BEEN NOTICED WHEN FUEL TANK WAS REPLACED AND WORK DONE AT THAT TIME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
I PARKED THE CAR IN MY DRIVEWAY AND THE PASSENGER SIDE MIRROR STARTED CLICKING. THE MIRROR WAS ATTEMPTING TO ROTATE TO THE EXTREME CAR SIDE OF THE MIRROR. USING THE REMOTE MIRROR CONTROL HAD NO EFFECT.THE CAR WAS TURNED OFF AND THE MIRROR MOTOR CONTINUED TO TRY TO MOVE THE MIRROR PAST THE LIMIT. AFTER SEVERAL MINUTES, THE CLICKING STOPPED AND THERE WAS AN ODOR OF PLASTIC BURNING. AFTER THE CLICKING STOPPED, NEITHER MIRROR MOVED. THE LOCAL MECHANIC SAID THE WIRING TO THE MOTOR HAD BURNED AND SHORTED THE MECHANISM. I WAS LUCKY THAT THERE WAS NO DAMAGE TO THE INTERIOR OF THE DOOR. HAS THIS MALFUNCTION BEEN A PROBLEM WITH THE TRAILBLAZERS? *TR
I AM EXTREMELY DISAPPOINTMENT AND AFRAID OF MY TRAILBLAZER AT THIS POINT. WE PURCHASED THE VEHICLE USED AND WITHIN A WEEK OF HAVING THE TRUCK IT STARTED DYING AT REDLIGHTS. OUT OF NOWHERE THE TRUCK JUST SHUTS OFF IN THE MIDDLE OF THE ROAD. IT HAS GOT TO THE POINT NOW THAT IT DOES IT WHILE THE VEHICLE IS ACTUALLY IN MOTION. I HAVE 3 KIDS AND THIS IS NOT SAFE! I LOSE TOTAL CONTROL OF THE VEHICLE. THE HEADLIGHT PLUG HAS BURNED UP TWICE ON THE DRIVER SIDE AND IT HAS BEEN REPLACED. THE ELECTRICAL IS SERIOUSLY IN NEED OF A RECALL DO TO THE BACK DOOR SPEAKERS NEVER WORKING SINCE WE PURCHASED THE TRUCK (WHICH THE DEALER PROMISED TO FIX) ALONG WITH THE REAR A/C (WHICH THE DEALER ALSO PROMISED TO FIX! I CANT AFFORD 900$ IN LABOR FOR WHATEVER IS MAKING MY TRUCK SHUT OFF BUT IF IT DOESN'T GET FIXED IT WILL BE THE DEATH OF ME! READING CODES ON OBD2 SCANNER OF POO14 AND P0016 INCORRECT CAMSHAFT TIMING WIRING PROBLEMS (HARNESS/WIRING) IN INTAKE TIMING CONTROL VALVE CONTROL SOLENOID SYSTEM CONTINUOUS OIL FLOW TO VCT PISTON CHAMBER FAILED TIMING VALVE CONTROL SOLENOID (STUCK OPEN)- NOW WHAT DO I DO.. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
MY VEHICLE HAS NUMEROUS TIMES QUIT RUNNING (SINCE PURCHASE 2004) BY FIRST BEING UNSTABLE AND ROUGH ENGINE IDLE. IT'S MORE NOTICEABLE AFTER DRIVING FOR LONG PERIOD OF TIME ON HIGHWAY AND THEN COMING TO A FULL STOP AT AN EXIT; VEHICLE WILL SURGE AT LOW SPEED/SHUDDER AND WILL STOP RUNNING. THE ONLY WAY TO KEEP VEHICLE RUNNING IS BY PRESSING GAS AND BRAKE (NOT SAFE). TALKED TO DEALERSHIP AN THERE IS NO FIX. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
MY 2004 CHEVY TRAILBLAZER OIL, GAS AND BATTERY GAUGES HAVE ALL STOPPED WORKING. WHEN I TURN ON MY HEATED SEATS THEY SMELL LIKE THEY'RE BURNING!! I HAVE READ 100'S OF COMPLAINTS OF SIMILAR STORIES WITH SAME PROBLEMS. WE NEED A RECALL, IT IS NOT SAFE!!!!! *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
NHTSA RECENTLY POSTED A RECALL OF THE 2006-2009 CHEVY TRAILBLAZER FOR HEADLIGHT ISSUES DUE TO A HEADLAMP DRIVER MODULE (HDM) THAT IS NOT OPERATING CORRECTLY AND CAN CAUSE THE LOW BEAM HEADLAMPS AND DAYTIME RUNNING LIGHTS TO SHUT OFF. I HAVE A 2004 CHEVY TRAILBLAZER EXT 370 AND HAVE THE SAME ISSUE AND IT HAS BEEN ONGOING FOR SEVERAL YEARS. IT HAPPENED MAYBE ONCE IN 2012 AND THEN SEVERAL MONTHS LATER DID IT AGAIN AND NOW IT IS HAPPENING MORE FREQUENTLY (AT LEAST ONCE A WEEK OR SO). PLEASE EXTEND THE RECALL TO ALSO INCLUDE MY VEHICLE AS WELL. *DT
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
MY SON [XXX] WAS INVOLVED IN A SINGLE CAR ACCIDENT (HIT A DEER AND RAN OFF THE ROAD) IN WHICH OUR 2004 CHEVY TRAILBLAZER WAS TOTALED IN A ROLL OVER AND NOT ONE SINGLE AIRBAG DEPLOYED IN THE ACCIDENT. AS A RESULT OF NO AIRBAG HE SMASHED HIS FOREHEAD INTO THE STEERING WHEEL LEAVING A 2 INCH GASH, CUT TO THE BONE. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
ON ABOUT 6 OCCASIONS OVER THE PAST COUPLE WEEKS MY SUNROOF HAS OPENED BY ITSELF. ON EACH OCCASION IT HAS HAPPENED AFTER BACKING UP AND THEN PUTTING IT IN DRIVE. WHEN IT HAPPENS I TRY TO STOP IT BY PRESSING THE CLOSE BUTTON BUT IT DOESN'T DO ANYTHING AND CONTINUES TO OPEN FULLY AND STOPS. AFTER ABOUT 20-30 SECONDS I CAN CLOSE IT. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
I AM EXTREMELY DISAPPOINTMENT AND AFRAID OF MY TRAILBLAZER AT THIS POINT. WE PURCHASED THE VEHICLE USED AND WITHIN A WEEK OF HAVING THE TRUCK IT STARTED DYING AT REDLIGHTS. OUT OF NOWHERE THE TRUCK JUST SHUTS OFF IN THE MIDDLE OF THE ROAD. IT HAS GOT TO THE POINT NOW THAT IT DOES IT WHILE THE VEHICLE IS ACTUALLY IN MOTION. I HAVE 3 KIDS AND THIS IS NOT SAFE! I LOSE TOTAL CONTROL OF THE VEHICLE. THE HEADLIGHT PLUG HAS BURNED UP TWICE ON THE DRIVER SIDE AND IT HAS BEEN REPLACED. THE ELECTRICAL IS SERIOUSLY IN NEED OF A RECALL DO TO THE BACK DOOR SPEAKERS NEVER WORKING SINCE WE PURCHASED THE TRUCK (WHICH THE DEALER PROMISED TO FIX) ALONG WITH THE REAR A/C (WHICH THE DEALER ALSO PROMISED TO FIX! I CANT AFFORD 900$ IN LABOR FOR WHATEVER IS MAKING MY TRUCK SHUT OFF BUT IF IT DOESN'T GET FIXED IT WILL BE THE DEATH OF ME! READING CODES ON OBD2 SCANNER OF POO14 AND P0016 INCORRECT CAMSHAFT TIMING WIRING PROBLEMS (HARNESS/WIRING) IN INTAKE TIMING CONTROL VALVE CONTROL SOLENOID SYSTEM CONTINUOUS OIL FLOW TO VCT PISTON CHAMBER FAILED TIMING VALVE CONTROL SOLENOID (STUCK OPEN)- NOW WHAT DO I DO.. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .