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fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
19,833 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Chevrolet Impala electrical problems

electrical problem

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2003 Chevrolet Impala Owner Comments

problem #3

Nov 032005

Impala 6-cyl

  • Automatic transmission
  • miles


The contact stated the door locks were making a clicking noise and the doors would not lock. When he tried to lock the doors, they would slowly unlock. The battery died before he took the vehicle to the dealership. The dealership found the BCM, and the battery needed to be replaced. They state it was because the vehicle was not driven enough. The vehicle has been repaired, and there have been no further problems.

- Ozone Park , NY, USA

problem #2

Sep 032005

Impala 6-cyl

  • Automatic transmission
  • 34,000 miles
My battery has failed three times in less than three years and has had to be replaced. I have been stranded twice having to wait over an hour to get assistance. Each time I take the car into the dealer they say they can't understand why the battery would fail so soon and then they put in a new one.

- Chandler, AZ, USA

problem #1

Jun 172005

Impala 8-cyl

  • Automatic transmission
  • 25,500 miles
A 2003 Chevrolet Impala with 25,500 miles, the battery corroded through at the positive terminal. Acid leaked from the battery down to the bottom of the car. In talking to the manager at sears, where I had the battery replaced, 8 out of 10 ac delco batteries that they replace, fail this way. In talking to Chevrolet service managers, they see this quite often. I was told that ac delco now has batteries made off shore. How long before critical systems are affected?

- San Jose, CA, USA

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