2004 Chevrolet Trailblazer EXT problems
Owners have filed 306 complaints with NHTSA about the 2004 Chevrolet Trailblazer EXT. Electrical system is the most reported problem area, at 48% of complaints. Next are fuel system (15%) and engine (7%).
At a glance
- Complaints
- 306 filed with NHTSA
- Most reported
- Electrical system 48% of complaints
- Crashes and fires
- 10 and 6
- Injuries and deaths
- 25 and 0
- Typical mileage
- 65,000 miles 252 complaints with mileage
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
When problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 18 |
| 20k to 40k miles | 24 |
| 40k to 60k miles | 66 |
| 60k to 80k miles | 54 |
| 80k to 100k miles | 43 |
| 100k to 120k miles | 16 |
| 120k to 140k miles | 11 |
| 140k to 160k miles | 12 |
| 160k to 180k miles | 5 |
| 180k to 200k miles | 2 |
| 200k+ miles | 1 |
What the data shows
Of the 252 complaints that include odometer readings, half describe a problem before roughly 64,000 miles. For electrical system specifically, the median reported mileage is about 63,000 miles (123 complaints with mileage).
Safety-related details: 10 complaints mention a crash; 6 complaints mention a fire; 25 injuries reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2004 ranks 2nd most-complained-about out of 4 model years of the Chevrolet Trailblazer EXT with enough data (185 complaints in that window). It is also covered by 1 safety recall campaign.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
When had the crash which was very hard loud and scary the air bags didn't deploy nor did the air bags on the side of seat. The crash was very serious and the electrical system and powertrain to windows.
2004 trailblazer , transmission dipstick rusted and broke, transmission went out from water getting inside / do not know how this could have happened ! And the bearings in the waterpump went out leaving the fan shaft wiggling / loose. With only 65000 miles on my trailblazer not traveling no faster than 75 MPH max. This should not have happened. My friends with the same trailblazer is having the same thing happening. I serviced every 3500 miles since owned 2005. Please help if can .
All gauges on control panel not working, but all service lights come on check engine, ABS seat belt, reduce power, battery lights. Speed and fuel are impossible to know as well as warnings to observe from lights. 2004 chevrolet trailblazer, speedometer will show a faster speed than you moving or will go to 0 while on the freeway. The tach has the same problem. This is a serious safety issue and it should be recalled now. I heard that they had the same issue on pick-ups and they were recalled.