2004 Chevrolet TRAILBLAZER EXT 370 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
15 owner complaints analyzed
0 distinct recall campaigns
96,250 mi median reported failure mileage
Scope: 2004 model year. Data snapshot: . 12 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 5 of 15 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Fuel system concerns | 5 | 33.3% |
| Electrical and battery issues | 3 | 20.0% |
| Engine operation | 1 | 6.7% |
| Braking behavior | 1 | 6.7% |
| Steering behavior | 1 | 6.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 5 |
| Fuel System, Gasoline | 3 |
| Fuel/Propulsion System | 3 |
| Air Bags | 1 |
| Electrical System: Instrument Cluster/Panel | 1 |
| Engine And Engine Cooling:Engine | 1 |
| Exterior Lighting | 1 |
| Seats | 1 |
Electrical System: 5; Fuel System, Gasoline: 3; Fuel/Propulsion System: 3; Air Bags: 1; Electrical System: Instrument Cluster/Panel: 1; Engine And Engine Cooling:Engine: 1; Exterior Lighting: 1; Seats: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 5 |
| 150,000 and above | 1 |
Under 25,000: 1; 25,000 to 49,999: 1; 50,000 to 74,999: 2; 75,000 to 99,999: 2; 100,000 to 149,999: 5; 150,000 and above: 1
100,000 to 149,999 miles has the most reports with usable mileage (5). 3 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2006 | 1 |
| 2007 | 1 |
| 2010 | 3 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 3 |
| 2015 | 2 |
| 2016 | 2 |
2006: 1; 2007: 1; 2010: 3; 2012: 2; 2013: 1; 2014: 3; 2015: 2; 2016: 2
Pattern summary
Electrical System leads the component reports. Fuel system concerns appears in 5 complaint narratives. Electrical and battery issues appears in 3 complaint narratives. Engine operation appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10359201 · 2010-10-05 (October 5, 2010)
2004 CHEVY TRAILBLAZER EXT NORTHFACE EDITION WITH THE V8 ENGINE IS LEAKING GAS DUE TO A CRACK IN THE GAS TANK AND THE REPAIR IS OVER 1000$, MY TRUCK ONLY HAS 7500 MILES ON IT AND EVERYTHING SEEMS TO BE MESSING UP. *TR
Owner-reported narrative. 74,000 miles reported. Look up ODI 10359201 at NHTSA ↗
Owner report 10368603 · 2010-12-01 (December 1, 2010)
I PURCHASED A 2004 CHEVY TRAILBLAZER IN SEPTEMBER 2003. WITHIN 6 MONTHS OF PURCHASE, THE CHECK ENGINE LIGHT CAME ON. DEALER SAID IT WAS A COMPUTER ERROR AND RESET THE COMPUTER. APPROXIMATELY EVERY 6 MONTHS THEREAFTER, CHECK ENGINE LIGHT CAME ON AND DEALER SAID EACH TIME IT WAS EVAPORATION CAUSED BY NOT TIGHTENING GAS CAP APPROPRIATELY. DEALERSHIP CHANGED OWNERS AND NEW DEALER RESET THE COMPUTER ONCE (SAYING GAS CAP NOT TIGHTENED APPROPRIATELY), THE SECOND TIME FOUND A HOLE IN HOSE THAT COMES OUT OF THE GAS TANK AND REPAIRED IT. UPON THE TH…
Owner-reported narrative. Look up ODI 10368603 at NHTSA ↗
Owner report 10302293 · 2010-01-26 (January 26, 2010)
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
Owner-reported narrative. 116,000 miles reported. Look up ODI 10302293 at NHTSA ↗
Owner report 10594004 · 2014-05-26 (May 26, 2014)
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 …
Owner-reported narrative. Look up ODI 10594004 at NHTSA ↗
Owner report 10725807 · 2015-06-17 (June 17, 2015)
TL* THE CONTACT OWNS A 2004 CHEVROLET TRAILBLAZER EXT 370. WHILE IN A PARKING LOT, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO AN INDEPENDENT DEALER. THE TECHNICIAN DIAGNOSED THAT THE FUEL PUMP AND FUEL FILTER NEEDED TO BE REPLACED THE FILLER INLET WAS ALSO CRACKED. THE CONTACT MENTIONED THAT THE FUEL PUMP, THE FUEL FILTER, AND THE HOSE WERE REPLACED. HOWEVER, THE FUEL TANK FILLER INLET WAS NOT. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 115,869.
Owner-reported narrative. 115,869 miles reported. Look up ODI 10725807 at NHTSA ↗
Owner report 10188324 · 2007-04-19 (April 19, 2007)
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
Owner-reported narrative. 15,000 miles reported. Look up ODI 10188324 at NHTSA ↗
Owner report 10669818 · 2015-01-03 (January 3, 2015)
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
Owner-reported narrative. 150,000 miles reported. Look up ODI 10669818 at NHTSA ↗