2003 Chevrolet Trailblazer power train problems
103 owner complaints filed with NHTSA name the power train on the 2003 Chevrolet Trailblazer — 11% of all complaints for this model year.
What owners report
“While driving my Trailblazer in A4WD on slippery road conditions, I went to pulled out of a parking lot and there was a loud sound like my whole front end fell out and the front end completely locked up. Almost causing an accident. I had to dial back to 2HI quickly to unlock to front end. There was…”
filed Jan 12, 2022
“Tl* the contact owns a 2003 chevrolet trailblazer. While driving various speeds, the front end of the vehicle vibrated. The vibration was more pronounced while the engine was idling. Also, while ascending up a hill, the vehicle would not properly accelerate. The vehicle was taken to an independent…”
filed Aug 20, 2019
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR…Campaign 03V075000 · Mar 6, 2003
Related service bulletins
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This…
24-NA-141 · Service Bulletin/Repair Instructions · issued Jul 24, 2024
Power Train problems in other Trailblazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Trailblazer | 6 | 32% |
| 2024 Trailblazer | 7 | 22% |
| 2023 Trailblazer | 9 | 15% |
| 2022 Trailblazer | 32 | 30% |
| 2021 Trailblazer | 38 | 20% |
| 2009 Trailblazer | 1 | 4% |
| 2008 Trailblazer | 10 | 5% |
| 2007 Trailblazer | 15 | 2% |
| 2006 Trailblazer | 49 | 4% |
| 2005 Trailblazer | 51 | 3% |
| 2004 Trailblazer | 62 | 6% |
| 2002 Trailblazer | 310 | 27% |
Other reported problem areas on the 2003 Chevrolet Trailblazer
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.