2002 Chevrolet Impala electrical system problems

305 owner complaints filed with NHTSA name the electrical system on the 2002 Chevrolet Impala — 38% of all complaints for this model year.

305

Electrical System complaints

38%

share of all complaints

85,000 mi

median reported incident mileage

8 / 7

crash / fire reports

What owners report

“Fuel system or backfire is what I believe happened to it. The vehicle is available for inspection upon request. My safety was severely put at risk because the car exploded and caught fire while I was inside the car and fire came through the dash and air conditioner slots, anything could of happened…”
filed Jan 3, 2026
“Power windows fail at times Blinkers fail at times Front hub assembly damage Front calipers are damaged and affect steering These are available for inspection. There are huge safety risks with all of these compromised issues. Last inspection is unknown. No known warning lamps present.”
filed May 23, 2025

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024
This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and…
24-NA-098 · Service Bulletin/Repair Instructions · issued Jun 6, 2024