2003 Chevrolet Avalanche electrical system problems
Owners reported electrical system problems in 43 complaints for the 2003 Chevrolet Avalanche, 18% of the complaints on file. It is the 2nd most reported problem area for this model year.
At a glance
- Complaints
- 43 18% of this year's complaints
- Typical mileage
- 70,000 miles 34 complaints with mileage
- Crashes and fires
- 0 and 1
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When electrical system problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 3 |
| 20k to 40k miles | 2 |
| 40k to 60k miles | 7 |
| 60k to 80k miles | 8 |
| 80k to 100k miles | 8 |
| 100k to 120k miles | 4 |
| 120k to 140k miles | 2 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 34 electrical system complaints that report mileage, the median is about 70,000 miles, and 35% were reported before 60,000 miles.
These complaints mention 1 fire.
What owners wrote
Interior blower motor shorts out causing smoke to fill the cabin, this is the second motor that has been replaced in my 2003 avalanche.
The accessory lights on my steering wheel that operate radio volume, souce, on-star, etc are not all working. I was told at bradshaw chevrolet that they have had to repair alot of these and would not be included as recall. This is a safety hazard and you can't see at night which button to select. Also now the light for my mileage and engine operation has faded out until I can barely read it.
Other problems reported for the 2003 Chevrolet Avalanche
- Brakes 81 complaints