2012 Buick Regal electrical system problems
18 owner complaints filed with NHTSA name the electrical system on the 2012 Buick Regal — 20% of all complaints for this model year.
What owners report
“There is a water seal leak around the driver side headlight. I have photos showing proof of standing water. It has now caused the headlight, left turn signal, and drivers side brake light to fail. My passenger side headlight is doing the same. I have no headlights, no driverside lights period. I…”
filed Jul 27, 2025
“[XXX] my car failed to let me use the brake, i was going about 45mph and when i went to apply brake pressure the pedal was so stiff i couldnt use the brake. Causing from end collision, when i made a trip to springdale to have my car inspected it didnt make it, started backfiring and dying around 65…”
filed Nov 26, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- These vehicles may have a condition in which the Generator Control Module (GCM) may not…Campaign 13V173000 · May 6, 2013
Related service bulletins
This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-180 · Service Bulletin/Repair Instructions · issued Sep 4, 2025
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% |
| 2011 Regal | 75 | 27% |
| 2004 Regal | 35 | 53% |
| 2003 Regal | 35 | 35% |
| 2002 Regal | 36 | 31% |
| 2001 Regal | 32 | 17% |
| 2000 Regal | 42 | 23% |
Other reported problem areas on the 2012 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.