2004 Chevrolet Trailblazer Power Train Problems
Owners have filed 62 complaints with NHTSA about power train problems on the 2004 Chevrolet Trailblazer, 6% of all complaints for this model year. Half of the reports with a mileage happened before 58,000 miles.
- 62power train complaints
- 58,000median miles at failure
- 2mention a crash
- 1mention an injury
- 0related recalls
- $4,200typical repair cost reported by owners
- 31%of reports with a speed happened at 50+ mph
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical power train repair on the 2004 Chevrolet Trailblazer at $4,200, and half of them between $3,300 and $4,650.
Based on 6 NHTSA complaints about this problem alone that state a repair bill or quote (2007–2010), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do power train problems happen?
Based on 53 complaints that reported the odometer reading.
How serious are the reports?
Of 62 complaints, 2 mention a crash, 2 a fire, 1 an injury.
Chevrolet Trailblazer power train complaints by model year
| Model year | Power Train complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Trailblazer | 1 | 9% | 100 |
| 2025 Trailblazer | 6 | 24% | 700 |
| 2024 Trailblazer | 7 | 21% | 10,000 |
| 2023 Trailblazer | 10 | 14% | 44,962 |
| 2022 Trailblazer | 34 | 31% | 43,000 |
| 2021 Trailblazer | 41 | 21% | 32,000 |
| 2014 Trailblazer | 1 | 100% | 79,000 |
| 2009 Trailblazer | 1 | 4% | — |
| 2008 Trailblazer | 10 | 5% | 47,858 |
| 2007 Trailblazer | 15 | 2% | 65,000 |
| 2006 Trailblazer | 50 | 5% | 70,500 |
| 2005 Trailblazer | 51 | 3% | 77,349 |
| 2004 Trailblazer | 62 | 6% | 58,000 |
| 2003 Trailblazer | 103 | 11% | 71,770 |
| 2002 Trailblazer | 310 | 27% | 66,000 |
| 2001 Trailblazer | 5 | 25% | 80,000 |
| 2000 Trailblazer | 5 | 19% | 60,000 |
| 1999 Trailblazer | 2 | 50% | 67,000 |
When owners reported it
Related recalls (0)
No safety recall lists power train for the 2004 Chevrolet Trailblazer. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
Electronic throttle body? No throttle control, motor will only idle, turn ignition switch off, then restart it will run. Reduced Engine Power light comes on. Happens for no apparent reason. Very unsafe situation.
Transmission slipping and the heater circuit. *tr
Accelerating on it's own and idling
Frequently asked questions
Do all 2004 Chevrolet Trailblazers have power train problems?
No. NHTSA has 62 owner complaints about power train for the 2004 Chevrolet Trailblazer (6% of the 1,081 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2004 Chevrolet Trailblazer power train?
No recall currently lists power train for this vehicle.
At what mileage do power train problems start?
The median reported mileage is 58,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix power train problems on the 2004 Chevrolet Trailblazer?
Owners report a typical cost of $4,200 (half paid between $3,300 and $4,650), from 6 complaints that state a repair bill or quote, in 2026 dollars.
Other 2004 Chevrolet Trailblazer problems
See all 2004 Chevrolet Trailblazer problems or power train problems across all Trailblazer years.