2003 Buick Regal electrical system problems
35 owner complaints filed with NHTSA name the electrical system on the 2003 Buick Regal — 35% of all complaints for this model year.
What owners report
“Unannounced to purchasers, the buick regal has a redundant and defective security ignition system that prevents the vehicle from being able to start with the key after the battery is disconnected. It must now be taken to a dealership to be diagnosed and for a costly repair. It was stationary, and…”
filed Feb 3, 2017
“My 03 buick regal ls will shutoff sometimes when turning left, or when using the turn signal. I can not find the paperwork, but I remember a recall for this about 5 to 8 years ago. We did have it addressed, but the problem has come back. Today's date is 1/9/17 and my wife had this happen again to…”
filed Jan 9, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
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, 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 Regal years
| Year | Reports | Share |
|---|---|---|
| 2018 Regal | 3 | 16% |
| 2017 Regal | 3 | 15% |
| 2016 Regal | 6 | 15% |
| 2015 Regal | 5 | 15% |
| 2014 Regal | 6 | 16% |
| 2013 Regal | 36 | 40% |
| 2012 Regal | 18 | 20% |
| 2011 Regal | 75 | 27% |
| 2004 Regal | 35 | 53% |
| 2002 Regal | 36 | 31% |
| 2001 Regal | 32 | 17% |
| 2000 Regal | 42 | 23% |
Other reported problem areas on the 2003 Buick Regal
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.