2003 Pontiac Montana electrical system problems

15 owner complaints filed with NHTSA name the electrical system on the 2003 Pontiac Montana — 18% of all complaints for this model year.

Electrical System complaints

18%

share of all complaints

24,200 mi

median reported incident mileage

1 / 1

crash / fire reports

What owners report

“We have to kept changing the brake lights in the back because they keep going out ever few weeks. We even went and bought a new stop signal switch but that wasn't it. We want to know if there was a recall on the brake light and the wiring and why they keep going out. We have had issues since we…”
filed Jan 28, 2015
“Brakes lights and head lights on my 2003 pontiac montana have been going out periodically for several years now. After replacing light housing, bulbs and other components, the brake lights continue to blow out. At one point we thought it was because of all of the moisture build up, so after my…”
filed Aug 6, 2014

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