2012 Buick LaCrosse Engine Problems
NHTSA lists 62 engine complaints for the 2012 Buick LaCrosse, 30% of its 206 total complaints for the year. No related recall is listed for this engine issue, and the median mileage at failure was 52,894 miles.
- Engine complaints
- 62
- 30% of 206
- Crashes reported
- 3
- Fires reported
- 1
- Injuries reported
- 1
- Median mileage
- 52,894 mi
- Related recalls
- 0
Typical engine symptoms owners report
- Owners report sudden engine stalling at highway or ramp speeds, sometimes recurring multiple times before the vehicle could be safely pulled over.
- Several complaints describe unintended acceleration, including cases where the vehicle sped up on its own after the driver released the gas pedal or while attempting to park.
- Some owners report the engine losing power abruptly at highway speed, with the check engine light illuminating and the vehicle needing to be towed.
- One complaint describes a burning odor and no oil on the dipstick, tied to a leaking rear main seal and oil leaking between the engine and transmission.
- A separate report describes engine loss of power at highway speed traced to a failed serpentine belt.
- One owner reported a burning plastic smell along with stalling and check engine light illumination at 104,800 miles.
When 2012 Buick LaCrosse engine complaints were filed
First complaint Apr 17, 2012, latest Jul 10, 2026.
Engine recalls for the 2012 Buick LaCrosse
No safety recalls on record for this model year.
Engine complaints by LaCrosse model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many engine complaints does the 2012 Buick LaCrosse have?
- NHTSA lists 62 engine complaints for the 2012 Buick LaCrosse, which is 30% of the 206 total complaints filed for that model year.
- Is there a recall for the 2012 Buick LaCrosse engine problems?
- No related recalls are listed in NHTSA data for this engine complaint category on the 2012 LaCrosse.
- At what mileage do 2012 LaCrosse engine problems typically occur?
- The median mileage at failure among reported engine complaints is 52,894 miles.
- What kind of engine problems do 2012 LaCrosse owners report?
- Owners report sudden stalling, unintended acceleration, loss of power at highway speed, and in some cases oil leaks or a burning odor tied to the engine.
- Were there any crashes or injuries linked to these complaints?
- NHTSA data tied to this engine complaint category for the 2012 LaCrosse includes 3 crashes, 1 fire, and 1 injury.