2004 Chevrolet Trailblazer EXT electrical system problems
Owners reported electrical system problems in 147 complaints for the 2004 Chevrolet Trailblazer EXT, 48% of the complaints on file. It is the most reported problem area for this model year.
At a glance
- Complaints
- 147 48% of this year's complaints
- Typical mileage
- 63,000 miles 123 complaints with mileage
- Crashes and fires
- 1 and 2
- Injuries and deaths
- 5 and 0
Source: NHTSA owner complaints
When electrical system problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 2 |
| 20k to 40k miles | 14 |
| 40k to 60k miles | 37 |
| 60k to 80k miles | 32 |
| 80k to 100k miles | 26 |
| 100k to 120k miles | 6 |
| 120k to 140k miles | 3 |
| 140k to 160k miles | 3 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 123 electrical system complaints that report mileage, the median is about 63,000 miles, and 43% were reported before 60,000 miles.
These complaints mention 1 crash, 2 fires, 5 injuries.
What owners wrote
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.
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.
Other problems reported for the 2004 Chevrolet Trailblazer EXT
- Fuel system 46 complaints
- Engine 21 complaints