Vehicle Data Hub

2004 Chevrolet Impala electrical system problems

Owners reported electrical system problems in 693 complaints for the 2004 Chevrolet Impala, 50% of the complaints on file. It is the most reported problem area for this model year.

At a glance

Complaints
693 50% of this year's complaints
Typical mileage
68,000 miles 574 complaints with mileage
Crashes and fires
8 and 8
Injuries and deaths
6 and 0

Source: NHTSA owner complaints

When electrical system problems show up

Electrical system complaints by mileage, 2004 Chevrolet Impala Complaints by odometer reading in 20,000-mile steps. The median is about 68,000 miles. 0k to 20k miles: 21 complaints 20k to 40k miles: 61 complaints 40k to 60k miles: 144 complaints 60k to 80k miles: 124 complaints 80k to 100k miles: 90 complaints 100k to 120k miles: 49 complaints 120k to 140k miles: 39 complaints 140k to 160k miles: 20 complaints 160k to 180k miles: 10 complaints 180k to 200k miles: 5 complaints 200k+ miles: 11 complaints 040k80k120k160k200k miles Typical: 68,000 miles
Based on 574 complaints that include mileage. 39% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles21
20k to 40k miles61
40k to 60k miles144
60k to 80k miles124
80k to 100k miles90
100k to 120k miles49
120k to 140k miles39
140k to 160k miles20
160k to 180k miles10
180k to 200k miles5
200k+ miles11

What the data shows

Of the 574 electrical system complaints that report mileage, the median is about 68,000 miles, and 39% were reported before 60,000 miles.

These complaints mention 8 crashes, 8 fires, 6 injuries.

What owners wrote

Tl*the contact owns a 2004 chevrolet impala. The vehicle caught fire in the dashboard area and then spread to the hood. The fire occurred two to three months after the vehicle was purchased. A relative sustained injuries to the hand due to the fire. The cause of the failure was electrical. There is no fire or police report. The vehicle was repaired, but the contact does not know the specifics of the repair work.

Reported at 45,000 miles, May 2005 FireInjury

Speedometer starts at random speeds and then continues like it started at zero. It sometimes says 80 or 100 MPH when you are not moving and then continues to go higher as you drive. Obviously you have no idea how fast you are driving.

Reported at 82,000 miles, September 2009

Other problems reported for the 2004 Chevrolet Impala

Electrical system problems in other years

Electrical system problems across all Chevrolet models