2003 Chevrolet Express electrical system problems
10 owner complaints filed with NHTSA name the electrical system on the 2003 Chevrolet Express — 17% of all complaints for this model year.
What owners report
“Odometer Fraud. The contact purchased a 2003 Chevrolet Express. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was approximately 156,000. It was later discovered that the mileage on July 2, 2024, was…”
filed Mar 17, 2026
“Tl* the contact owns a 2003 chevrolet express conversion van. The contacted stated that while driving 45 mph, all of the gauges and electrical features failed however, the light functions remained operable. The vehicle was taken to the dealer where the technician was unable to diagnose a failure…”
filed Apr 8, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025This 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, 2024Vehicle 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
Electrical System problems in other Express years
| Year | Reports | Share |
|---|---|---|
| 2017 Express | 2 | 10% |
| 2013 Express | 5 | 23% |
| 2005 Express | 4 | 17% |
| 2004 Express | 1 | 5% |
| 2002 Express | 8 | 15% |
| 2001 Express | 6 | 13% |
| 2000 Express | 4 | 5% |
| 1999 Express | 7 | 10% |
| 1998 Express | 1 | 4% |
| 1997 Express | 1 | 3% |
Other reported problem areas on the 2003 Chevrolet Express
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.