Vehicle Data Hub

2004 Chevrolet Impala problems

The 2004 Chevrolet Impala has 1,378 complaints on file with NHTSA. The largest share (50%) concerns electrical system. After that come lighting (8%) and engine (8%).

At a glance

Complaints
1,378 filed with NHTSA
Most reported
Electrical system 50% of complaints
Crashes and fires
80 and 34
Injuries and deaths
73 and 0
Typical mileage
70,000 miles 1,112 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

Complaints by mileage, 2004 Chevrolet Impala Complaints by odometer reading in 20,000-mile steps. The median is about 70,000 miles. 0k to 20k miles: 96 complaints 20k to 40k miles: 120 complaints 40k to 60k miles: 223 complaints 60k to 80k miles: 189 complaints 80k to 100k miles: 164 complaints 100k to 120k miles: 83 complaints 120k to 140k miles: 107 complaints 140k to 160k miles: 40 complaints 160k to 180k miles: 36 complaints 180k to 200k miles: 18 complaints 200k+ miles: 36 complaints 040k80k120k160k200k miles Typical: 70,000 miles
Based on 1,112 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 miles96
20k to 40k miles120
40k to 60k miles223
60k to 80k miles189
80k to 100k miles164
100k to 120k miles83
120k to 140k miles107
140k to 160k miles40
160k to 180k miles36
180k to 200k miles18
200k+ miles36

What the data shows

Among the 1,112 complaints that report mileage, the typical (median) problem appeared at about 70,000 miles. For electrical system specifically, the median reported mileage is about 68,000 miles (574 complaints with mileage).

Safety-related details: 80 complaints mention a crash; 34 complaints mention a fire; 73 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 23 model years of the Chevrolet Impala with enough data (718 complaints in that window). It is also covered by 4 safety recall campaigns.

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.

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

Wow same problem as everyone else. Speed does not register properly seems to be whenever it wants it will show speeds higher then what they are. This is a danger because speeds are guessed in school zones and highways. After a couple days speed will begin to work ok. Now the blower motor and heater do not work unless you pound by the ashtray area and hopefully the air conditioning will start blowing but the heat will not come on when switched to heat.

Reported at 30,000 miles, December 2006

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

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