Problems · by component

2012 Buick Lacrosse electrical system problems

62 owner complaints to NHTSA about the 2012 Buick Lacrosse cite electrical system, 30% of all 206 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
62
30% of all complaints
Crashes
2
Reported by owners
Fires
1
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“**Subject:** Formal Safety Defect Complaint: Premature Failure of Completed Recall Remedy (NHTSA Campaign 13V173000 / GM Recall 13136) Resulting in Sudden Loss of Power Steering **VEHICLE INFORMATION** * **Year/Make/Model:** 2012 Buick LaCrosse Hybrid (eAssist) * **VIN:** [XXX] * **Current Mileage:** [Insert Current Mileage] **DESCRIPTION OF SAFETY DEFECT & INCIDENT** This vehicle was previously serviced under NHTSA Campaign 13V173000 to resolve an inherent defect in the Generator Control Module (GCM) that presents a severe stalling and trunk fire risk. On 9-9-26, under normal driving conditions in ambient temperatures of approximately 95°F and after covering a distance of 10 miles, the manufacturer-installed remedy component suffered a premature, catastrophic thermal failure. The replacement GCM ceased regulating and delivering power to the vehicle’s 12-volt system. The resulting critical voltage drop forced the vehicle into an emergency load-shedding protocol, abruptly disabling the air conditioning system. Shortly thereafter, the severe drop in operating voltage caused a total, sudden failure of the Electronic Power Steering (EPS) while the vehicle was…”
Owner complaint to NHTSAFiled Sep 17, 2026Electrical systemODI 11765050
“during a regular drive the check stabiltrack system message popped up on the dash in the middle circle and then the little car with the squiggly lines behind it popped up and the check engine light came on and started blinking. Immediately I noticed lack of steering control, the car's speed was accelerating and decelerating on its own, jerking and stalling also was observed. As of now the car sits in my driveway because I don't trust the safety of it. I literally feared my life was in danger driving it because of the lack of handling and the acceleration shifts that were so random. So I returned home, as I pulled into the yard the vehicle jerked hard while I was attempting turn into the driveway causing me to hit my mailbox and damaged the side fender and front bumper. no one was injured but the car was damaged as stated before and I'm scared to drive it anywhere. The unpredictable behavior displayed in the vehicle puts other drivers at risk as well because I can't control the vehicle properly. so I'm guessing all in all its a malfunction somewhere in the electrical system. I have read about recalls in my type of vehicle involving the ESC and it appears to be…”
Owner complaint to NHTSAFiled Nov 5, 2025Steering, Electrical system, Vehicle speed controlCrash reportedODI 11697783
“My 2012 Buick Lacrosse had a recall for Loss control generator control module, The recall was fixed, but recently my car shut off in the middle of the highway for the same issue. The vehicle was towed to the GM Buick Dealer and they quoted me $7, 525.00 for the part because it is an after market part and maybe currently unavailable. This is a safety issue and I could have been hurt. The car has malfunctioned due there recall issue and I feel they should fix the issue as they did before or issue me a newer vehicle. Please help me”
Owner complaint to NHTSAFiled May 16, 2025Electrical systemODI 11661496
“Improperly calibrated Stabilitrak ESC system. Accelerator pedal position sensors 1-2 5v reference 3 circuit Heated oxygen 2 sensor Car is losing power and esc light is on along with check engine light”
Owner complaint to NHTSAFiled Apr 3, 2025Electrical system, Vehicle speed control, SeatsODI 11652672
“I’m experiencing issues that seem to align with the gcm recall despite my vehicle supposedly being fixed for this recall prior to my purchase of it. I cannot run the heat with the headlights or various combinations of things that would otherwise be normal because the battery will drain within 30 minutes, resulting in the car to going into “battery saver mode” where each system begins to power off one by one which ends with the car losing speed and just turning off and not turning back on. I’ve been stuck and had to jump it more times than I can possibly count due to it not starting or going in the battery saver mode. I’ve noticed a weird odor that smells like burning wires. I’ve owned this car for 3 years and have had these same problems with it since the day I bought it. I’m at the point now where I don’t even drive it unless absolutely necessary because I’m afraid it will shut down or cause an accident. The power steering is always first to shut down and on various occasions, I almost hit someone or something trying to steer off the road. I chose todays date as the “incident occur” date but this has been an ongoing issue since the purchase.”
Owner complaint to NHTSAFiled Dec 21, 2024Electrical system, Unknown or otherODI 11631970
“I was not in a car accident! Hoping not to be just want to report this issue.Car kills in mid driving stability track comes on flashing checking engine with stability light and track system light as well! leaves me stranded in the middle of wherever I am! Stability light comes on car will not start back up . It’s takes a while to start back up! Having kids in the car with this issue is a major problem! I have several videos of the car doing it and will try to keep track of it! The check engine light is not on when flashing not reads when I check it just stability lights! The car has been doing this for months now! I’ve read that this is an issue with other Buicks like mines. Please help get this issue resolved the proper way! Also the security comes on when the car does that”
Owner complaint to NHTSAFiled Sep 28, 2024Electrical system, Unknown or otherODI 11617033

Showing 6 of 62 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Electrical system

Free remedy

General Motors (GM) is recalling certain model year 2012 and 2013 Buick LaCrosse and Regal, and model year 2013 Chevrolet Malibu Eco vehicles equipped with eAssist. These vehicles may have a condition in which the Generator Control Module (GCM) may not function properly. This could cause a gradual loss of battery charge and the illumination of the malfunction indicator light.

Electrical systemReported May 6, 2013NHTSA 13V173000
Data from NHTSA Recalls API · synced Nov 9, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.