2012 Buick Lacrosse problems & reliability
205 owner complaints filed with NHTSA for the 2012 Buick Lacrosse, alongside 5 safety recall campaigns. Last verified Aug 8, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
5 complaints report injuries (5 injured).
Federal crash records (FARS 2020–2023): 2012 Buick Lacrosse vehicles were involved in 41 fatal crashes with 23 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System → | 61 | 30% |
| Engine → | 46 | 22% |
| Suspension → | 31 | 15% |
| Electronic Stability Control (esc) → | 25 | 12% |
| Power Train → | 24 | 12% |
| Steering → | 24 | 12% |
| Unknown OR Other | 18 | 9% |
| Service Brakes → | 16 | 8% |
| Vehicle Speed Control → | 12 | 6% |
| Fuel/propulsion System | 8 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 23 reported components →Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Among the 128 complaints that included a usable odometer reading, the median reported incident mileage was 56,000 miles (middle 50% between 25,602 and 95,250 miles).
Complaints by incident year
What owners report
“I was driving my car the engine turned off by itself everything locked up when i stop i tried to start it again and it just clicked, I thought it was the battery got a new battery started up drove it about a half mile did it again turned off everything locked up”
Unknown OR Other · filed Jul 14, 2026
“I was driving my car the engine turned off by itself everything locked up when i stop i tried to start it again and it just clicked, I thought it was the battery got a new battery started up drove it about a half mile did it again turned off everything locked up”
Unknown OR Other · filed Jul 14, 2026
“2012 Buick LaCrosse V6 (Fairfax Plant). The vehicle suffered a sudden, complete loss of engine power and forward propulsion while traveling at highway speed, cutting off mid-drive with no warning. This occurred alongside a persistent StabiliTrak malfunction; the dash showed repeated "Service StabiliTrak" warnings…”
Fuel/propulsion System · filed Jul 10, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Sands Chevrolet/Hybrid System Fire/Stall
Audit Query AQ14001 · opened May 2, 2014 · closed May 22, 2016
- Generator Control Module Fires
Recall Query RQ13003 · opened Jul 5, 2013 · closed Jul 22, 2014
Technical service bulletins
1,827 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2012 Buick Lacrosse. The 10 most recent:
This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the technician inspect the high pressure fuel pump…
PIP6113 · Service Bulletin/Repair Instructions · issued May 19, 2026
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902U · Service Bulletin/Repair Instructions · issued Jan 8, 2026
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions…
PIT5214G · Service Bulletin/Repair Instructions · issued Nov 20, 2025
New Vehicle Monitoring Programs Section in IVH
13598 · Other · issued Sep 9, 2025
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
Provide info on that parts restriction ending for the rear diff clutch control 19435910
PIP6027A · Service Bulletin/Repair Instructions · issued Aug 27, 2025
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902T · Service Bulletin/Repair Instructions · issued Aug 14, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2012 Buick Lacrosse has 5 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2012 Buick Lacrosse?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Among complaints with usable mileage, the median reported incident mileage was 56,000 miles. This does not predict when a particular vehicle will develop a problem.