Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2012 Buick Lacrosse owners, lightly cleaned up (personal details are redacted by NHTSA).
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. …
I was driving the LaCrosse in my neighborhood. A few minutes into the trip, I noticed a burning kind of smell. Then I saw smoke coming from the left side under the hood. I pulled over to the side of the road and exited the car to check, but the smoke quickly got worse and became flames. I then called 911.The police and fire department responded, and they were able to extinguish the fire. However, the front part of the car including the hood area and the passenger compartment was completely burned. It was a clear and mild summer day. And the car was travelling at relatively low speed on a local street, nothing unusual until the car suddenly started to smell, smoke, and burn. From the first burning smell to the car fire it took only a few minutes. …
The contact's niece owns a 2012 Buick LaCrosse. The contact stated that while driving various speeds, the battery warning light would illuminate on the instrument panel as the vehicle would stall. The "service battery charging system" warning message would also appear on the instrument panel as the vehicle would fail to restart. The contact was able to assist his niece by towing the vehicle to his home and replacing the battery; however, the same failure occurred soon after replacement. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 13V173000 (Electrical System) however, upon contacting the manufacturer, he discovered that the VIN was not under recall. The vehicle was not repaired. The failure mileage was approximately 128,000.
The contact owns a 2012 Buick LaCrosse. The contact stated that while driving at an undisclosed speed, the park assists, and several unknown warning lights illuminated. In addition, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the RPM was elevated. The contact stated that the failure had been occurring and persistent for several years; however, the dealer had not been able to duplicate the failure. The vehicle was taken to the dealer where it was diagnosed with a severe electrical failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 95,000.
The contact owns a 2012 Buick Lacrosse. The contact stated while driving at various speeds, the vehicle shut off with the stabili-trak warning light illuminated. The vehicle was taken to two separate dealers and the contact was informed that the computer and the wiring harness needed to be replaced. Upon investigation, the contact discovered NHTSA Campaign Number: 11V40400 (Electronic Stability Control) that he linked to the failure. The vehicle was repaired; however, the failure persisted. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 122,000.
The contact owns a 2012 Buick LaCrosse. The contact stated while at a standstill, the vehicle failed to start-up. The vehicle was not taken to a local dealer. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 13V173000 (Electrical System) however, the VIN was not included. The manufacturer was informed of failure but offered no assistance. The failure mileage was approximately 154,000.
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 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
While driving stability trac, check engine light flashed and rpm, and speed gauges start going haywire. The car loses power even while accelerating, the steering wheel locks and car stalls. Then after 15-30 minutes the car starts fine and drives. Has happened at least 8 times. Took it to Buick dealer who ran diagnostic but unable to recreate codes but acknowledged a problem. Supposedly fixed it only to return the car a few days later. This is quite scary and dangerous as it happens without warning and while driving. Thankfully I wasn't on the expressway when it happened because all steering, power and brake function is lost.
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
Related recalls
Electrical system
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.
Remedy: GM will notify owners and dealers will test the GCM and replace it, as necessary, free of charge. The recall began on June 11, 2013. Owners may contact GM at 1-800-521-7300. GM's recall campaign number is 13136.
NHTSA investigations
Generator Control Module Fires
On July 5, 2013 the Office of Defects Investigation (ODI) opened Recall Query RQ13-003 to investigate whether the service procedures utilized in recall bulletins 13136 and 13142 for safety recall 13V-173 were sufficient to identify the safety defect in the subject vehicles.These safety recalls were issue on May 3, 2013 to address the improper function of the Generator Control Module (GCM) in certain model year (MY)…
Sands Chevrolet/Hybrid System Fire/Stall
NHTSA opened AQ14-001 to determine whether Sands Chevrolet of Surprise, Arizona complied with the requirements of the National Traffic and Motor Vehicle Safety Act, 49 U.S.C. Chapter 301 (Safety Act) and its implementing regulations.
Electrical complaints in other Lacrosse years
Frequently asked questions
How common are electrical problems on the 2012 Buick Lacrosse?
NHTSA has 62 complaints about the electrical system of the 2012 Buick Lacrosse, 30% of the model year's 206 complaints. The component named most often is wiring (1 mentions).
Is there a recall for 2012 Buick Lacrosse electrical problems?
Yes — NHTSA recall 13V-173 (electrical system, May 6, 2013). Recall repairs are free at authorized dealers.
At what mileage do 2012 Buick Lacrosse electrical problems start?
Half of the complaints with a recorded mileage happened before about 66,000 miles, and 18% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 1 fire and 1 injury to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.