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2012 Buick Lacrosse problems

The most common problem on the 2012 Buick Lacrosse is electrical system, typically around 66,000 miles. It has 1.6 times the complaints of a typical Lacrosse model year.

Typical year1.6x the typical complaints
Year score
55/100
Owner complaints
206
Recalls
5
Service bulletins
1,831
Worst area
Electrical
Crash rating
5/5
Fuel economy
20-28mpg

The worst 2012 Buick Lacrosse problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

Specific symptoms reported on the 2012 Buick Lacrosse

Stalling 41Check engine light 29Loss of power 21Power steering loss 13Jerking 11Won't start 9Fire or smoke 5

Recalls 5

Suspension: rearReported December 22, 2021 · 4,271 vehicles affected
What is wrong
General Motors, LLC (GM) is recalling certain 2010-2013 Buick Lacrosse, 2012-2013 Buick Regal, and 2013 Chevrolet Malibu vehicles sold or ever registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. These vehicles may have rear toe links that received an improper amount of electrocoating (e-coat) corrosion protection, which could cause the e-coat to become brittle and break away when contacted by road debris. Over time, the e-coat may chip away, exposing the metal toe link and making it more susceptible to corrosion. Corrosion may eventually cause the toe link to thin and ultimately fracture.
Risk
A rear toe link fracture may reduce the driver's ability to control the vehicle, increasing the risk of a crash.
Remedy
Dealers will replace the rear suspension toe links and adjuster fasteners, free of charge. Owner notification letters were mailed January 27, 2022. Owners may contact Buick customer service at 1‑800‑521‑7300 or Chevrolet customer service at 1‑800‑222‑1020. GM's number for this recall is N212346640. This recall is an expansion of the federal safety agency recalls 20V‑764 and 21V‑633.

Recall number 21V00F000 · Recall details

Suspension: rearReported December 21, 2020 · 220,006 vehicles affected
What is wrong
General Motors, LLC (GM) is recalling certain 2012-2013 Buick Regal, 2013 Chevrolet Malibu, and 2010-2013 Buick Lacrosse vehicles sold or ever registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. These vehicles may have rear toe links that received excessive electrocoating (e-coat) corrosion protection, which could cause the e-coat to become brittle and break away when contacted by road debris. Over time, the e-coat may chip away, exposing the metal toe link and making it more susceptible to corrosion. Corrosion may eventually cause the toe link to thin and ultimately to fracture.
Risk
A rear toe link fracture may reduce the driver's ability to control the vehicle, increasing the risk of a crash.
Remedy
GM will notify owners, and dealers will replace the rear suspension toe links and adjuster fasteners free of charge. Parts are not currently available. Owners were mailed an interim notification on January 27, 2021, and April 15, 2021. A third notification was mailed on August 19, 201. Owners may contact Buick customer service at 1‑800‑521‑7300 or Chevrolet customer service at 1‑800‑222‑1020. GM's number for this recall is N202308930.

Recall number 20V764000 · Recall details

Seats: front assembly: power adjustReported July 23, 2014 · 414,333 vehicles affected
What is wrong
General Motors LLC (GM) is recalling certain model year 2011-2012 Buick LaCrosse, Regal and Chevrolet Camaro, as well as certain 2010-2012 Cadillac SRX, Chevrolet Equinox and GMC Terrain vehicles, equipped with power height adjustable driver and passenger seats. In the affected vehicles, the bolt that secures the driver's and passenger's power front seat height adjuster may fall out causing the seat to drop suddenly to the lowest vertical position.
Risk
If the driver's seat unexpectedly drops, the distraction and altered seat position may affect the drivers' control of the vehicle, increasing the risk of a crash.
Remedy
GM will notify owners, and dealers will replace the height adjuster shoulder bolts, free of charge. The manufacturer distributed interim letters to owners on September 11, 2014. The recall began on December 26, 2014. Owners may contact GM customer service at 1‑800‑521‑7300 (Buick), 1‑800‑458‑8006 (Cadillac), 1‑800‑222‑1020 (Chevrolet), or 1‑800‑462‑8782 (GMC). GM's number for this recall is 14271.

Recall number 14V447000 · Recall details

Electrical systemReported May 6, 2013 · 42,904 vehicles affected
What is wrong
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.
Risk
If the vehicle is continued to be driven, the engine may stall and/or the vehicle may not start. In addition, there may be a burning or melting odor, smoke, and possibly a fire in the trunk.
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.

Recall number 13V173000 · Recall details

Electronic stability control (ESC)Reported August 3, 2011 · 4,077 vehicles affected
What is wrong
Gm is recalling certain model year 2012 buick lacrosse passenger vehicles manufactured from june 9, 2011, through july 2, 2011, for failing to conform to the requirements of federal motor vehicle safety standard no. 126, "electronic stability control systems (ESC)." the stabilitrak system has an incorrect calibration that may cause the system to not properly detect if a sensor were to malfunction, and the warning light indicating that the system is not operating would not illuminate, as required in the safety standard.
Risk
The improper diagnosing may cause the ESC to falsely activate, resulting in sudden changes in vehicle handling and deceleration, particularly at higher speeds, which may cause the driver difficulty in maintaining the vehicle's desired path of travel and desired vehicle speed, and could result in a crash without warning.
Remedy
Gm dealers will reprogram the electronic brake control module free of charge. The safety recall began on september 12, 2011. Owners may contact buick at 1‑866‑608‑8080.

Recall number 11V404000 · Recall details

See all 5 recalls for the 2012 Buick Lacrosse

Defect investigations

Sands Chevrolet/Hybrid System Fire/StallOpened May 2, 2014, closed May 22, 2016

the federal safety agency 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. The Safety Act requires, among other things, that a manufacturer notify its dealers of defects related to motor vehicle safety and non-compliances with Federal Motor Vehicle Safety Standards and, in turn, that a dealer not sell and deliver a new vehicle subject to a recall unless the recall remedy has been performed (49 U.S.C. ?? 30112(a), 30120(i)).the federal safety agency issued an information request (IR) letter to Sands Chevrolet on May 5, 2014.Sands Chevrolet responded to this request on May 22, 2014.To ensure the federal safety agency?s information request encompassed all possible reference codes for General Motors recall 13V‑173, the federal safety agency issued another IR letter to Sands Chevrolet on June 8, 2015.Again, a response letter was received on June 9, 2015.the federal safety agency?s investigation indicated that Sands Chevrolet did sell and deliver recalled vehicles that did not have the recall remedy completed at the time the vehicles were delivered to the customers.the federal safety agency therefore concluded that Sands Chevrolet was liable for civil penalties for violations of the Safety Act, pursuant to 49 U.S.C. ? 30165.Under a Settlement Agreement dated March 24, 2016, Sands Chevrolet represented that it improved its processes to verify that it checks every vehicle for recalls prior to delivery to the purchaser and that it has not sold and delivered any unremedied new motor vehicles since June 9, 2015.Sands Chevrolet also represented that it now also checks for open recalls on every customer vehicle brought in for service, and that it checks for open recalls on every used trade-in vehicle, regardless of make or model, and takes steps to have all used trade-in vehicles repaired prior to retail sale. Sands Chevrolet admitted to violating the law and must pay civil penalties in the amount of $40,000.This Audit Query is closed.

AQ14001

Generator Control Module FiresOpened July 5, 2013, closed July 22, 2014

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) 2012-13 Buick LaCrosse and Regal and MY 2013 Chevrolet Malibu Eco equipped with eAssist.This condition may result in a loss of battery charge, engine stall and/or inability for the vehicle to start.In severe cases it may also lead to odor, smoke and possibly a fire in the trunk.During discussions with General Motors (GM), ODI was informed that the subject vehicles could be separated into 4 distinct build populations, or groups. Group A contained vehicles built from the start of production through 3/19/2012.Group B involved vehicles built from 3/20/2012 to 8/20/2012, group C from 8/21/2012 to 12/31/12, and group D from 1/1/2013 onwards.Bulletin 13136 instructed dealers to inspect and, if necessary, replace the GCM for vehicles in groups A or C.Bulletin 13142 instructed dealers to replace the GCM of any vehicle in group B.Group D vehicles were not recalled.All eAssist vehicles have a Powerpack which contains a BAS (belt alternator-starter) Power Inverter Module (BPIM)/Accessory Power Module (APM) and a 115-V Lithium-Ion battery.The Powerpack is known by GM's Part Description System as the GCM and Battery Module. The BPIM/APM contains 3 multi-layered printed circuit boards (PCBs) comprised of conductive layers separated by isolating layers.Vehicles built within the time periods of groups A and B had PCBs using single isolation layers.Vehicles build in group C had dual isolation layers on 1 of the 3 PCBs, and group D had all 3 PCBs built with dual insulation.Adding dual insulation to a PCB makes it more robust to material and manufacturing variations, and ultimately less susceptible to an electrical short circuit and subsequent failure.Through initial analysis of the GCM failures, GM identified that vehicles within group B contained PCBs that were contaminated during production due to increased production volumes that resulted in inadequate quality control.GM also noted that GCM failures occurred early in the life of the vehicle (typically <1000 miles).Therefore a service procedure was developed to replicate early life failures by subjecting the GCM to high current loads which would cause the identified failure mechanism (copper migration) to occur quickly and reveal any underlying PCB defect.Although groups A and C were built with PCBs containing single layer PCBs, they were built using better quality control, and as the data supports, experienced significantly lower failures.GM advised that for these reasons the two different service procedures were used in the Recall 13V‑173 population.In response to ODI's Information Request (IR) GM submitted 234 unique reports related to the alleged problem. It was noted that 197 (84%) of the received reports fell into the group B population.The 2 fire incidents noted were events in which flames were evident and/or damage was experienced outside of the GCM. Both of these incidents involved group B vehicles. One hundred four warranty claims were also submitted in response to the IR, with 96 claims (92%) from group B.It was also noted that none of the claims from groups A or C occurred after the service procedure was conducted, and that the majority of the A or C incidents occurred during the service procedure.Given the data, ODI believes the ser

RQ13003

Technical service bulletins for the 2012 Buick Lacrosse 1,831

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 1,831 bulletins for the 2012 Buick Lacrosse

2012 Buick Lacrosse crash test ratings

Government 5-star crash tests. Higher is safer. Each row is a body style and drivetrain that was tested.

VersionOverallFrontalSideRollover
Buick Lacrosse 4 DR AWD5554
Buick Lacrosse 4 DR FWD5554
Buick Lacrosse eAssist 4 DR AWD5554
Buick Lacrosse eAssist 4 DR FWD5554

2012 Buick Lacrosse fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
2.4L 4‑cyl HybridFWD243528
3.6L 6‑cylFWD172721
3.6L 6‑cylAWD162620

What 2012 Buick Lacrosse owners say

Most recent owner complaints, unedited.

Filed Sep 17, 2026 · Electrical · MO

**Subject:** Formal Safety Defect Complaint: Premature Failure of Completed Recall Remedy (the federal safety agency 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 the federal safety agency 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 actively in motion. The driver was forced to navigate a heavy vehicle entirely without steering assistance, causing an immediate, severe collision hazard. Battery warning symbol activated. I have not taken it to the dealership because of the recall status. **REASON FOR ADVANCED ESCALATION** While the vehicle’s VIN status officially shows "No Incomplete Recalls" because the campaign was previously executed, the remedy part provided by the manufacturer has failed in the exact same manner as the original defective component. By failing prematurely, the safety risk mandated to be fixed by federal law has been completely reintroduced. REQUESTED ACTIONS Manufacturer-Covered Remedy: A goodwill replacement of the failed Generator Control Module and associated diagnostics at no cost to the owner. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION AC

Filed Jul 30, 2026 · Electrical · AZ

Shows service stability track

Filed Jul 14, 2026 · AZ

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

Filed Jul 14, 2026 · AZ

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

Filed Jul 10, 2026 · Brakes, Engine · OH

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 before the failure, then turned bright orange with multiple warning lights and a message instructing me to activate my turn signal and pull over before RPMs dropped to zero. Because power cut out instantly, my [XXX] son (passenger) and I were trapped in the center lane of a dense, multi-lane highway. I was forced to dodge high-speed traffic and coast the dead vehicle across multiple active lanes to reach the shoulder, creating an imminent collision risk to us and other drivers. We were then stranded on the narrow shoulder awaiting a tow, with traffic passing within feet at highway speed. Both my son and I have CMT2A (Charcot-Marie-Tooth disease), a neuromuscular disability limiting mobility; we were incapable of quickly evacuating the vehicle or reaching safety up the embankment, leaving us trapped in a highly dangerous position. No official inspection or diagnosis has been performed yet. My dash displayed the same "Service StabiliTrak" warning referenced in the federal safety agency Campaign 11V404000, though my VIN was excluded from that recall, and my failure went beyond the handling/deceleration issue described in that recall to a complete loss of propulsion. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 23, 2026 · Suspension · IL

Subject: Complaint Regarding Improper Handling of Safety Recall Repair Hello, I would like to file an official complaint regarding a dealership that failed to properly follow required procedures for a federally mandated safety recall repair on my vehicle. Vehicle Information: • Year/Make/Model: 2012 Buick Lacrosse • VIN: [XXX] • Recall Number (if known): Dealership Information: • Dealership Name: Castle Buick • Location: 7400 Cermak Rd, North Riverside, IL 60546 • Date of Service Attempt: May 2026 Details of the Issue: The dealership did not follow the proper safety recall repair guidelines as required under federal regulations. Despite the recall requiring specific corrective actions to ensure the vehicle is safe to operate, the dealer either: • failed to perform the full recall procedure, • refused or delayed the repair without a valid reason, or • returned the vehicle without completing required steps to ensure safety (such as proper inspection, adjustment, or alignment). This violates my rights as a vehicle owner, as federal law requires manufacturers and authorized dealers to correct safety-related defects at no cost and in full compliance with recall instructions. I am requesting the federal safety agency’s assistance in ensuring that the recall is properly completed and that the dealership’s non-compliance is investigated. I am concerned for my safety and the safety of others on the road. Contact Information: • Name: [[XXX]] • Phone: [[XXX]] • Email: [[XXX]] Thank you for your attention to this matter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 19, 2026 · SC

There is a know water leak issues with GM. The below is the tsb, Technical Service Bulletin (TSB #16-NA-073. This is a safety issues because if your not aware it could lead to mold in your car. I noticed my issue about 3 weeks ago when my floor board was flooded. I can tell by how the carpet looks its been leaking for a while. I would like this to be further looked into. This is a know issues and the dealership should be responsible for repairs. This is also going to be a costly repair

Filed Jun 5, 2026 · Engine · 71,000 miles · NJ

The contact owns a 2012 Buick Lacrosse. The contact stated that while driving at an undisclosed speed and making a turn, the vehicle shut off in the middle of the roadway and the vehicle failed to restart. A bystander advised the contact to press the alarm button twice to restart the vehicle. The contact followed the advice of the bystander, and the vehicle restarted. The vehicle was taken to Firestone, where an unknown diagnosis was made. The vehicle was towed to the dealer, where an unknown repair was performed; however, the failure reoccurred. The contact stated that the vehicle was towed to the dealer on several occasions. The dealer replaced the motor mounts, the engine oil, and other unknown parts; however, the failure persisted. The vehicle was taken back to the dealer; however, the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 71,000.

Filed May 5, 2026 · Brakes · MD

The break pedal sticks down during high temperatures ( generally during summer months especially when park outside in the sun and high humidity) and causes the brakes to drag and the break pedal doesn’t come up by itself! Also the brake lights stay on. It is very dangerous to drive on this condition. I just want theagency to be aware of this and I have seen a lot of complaints on line I contacted gm and no response! It should be a recall for this! Please, help us with problem

Filed Dec 19, 2025 · Engine, Suspension · VA

All the specific details are unknown, but I had a mechanic work on my car and the problem that he had to fix. He stated that it should’ve been detected, but it was something wrong with my car, letting me know that I had the problem and also I have to keep replacing my camshaft timing Solenoid my car keeps giving me error codes P0011 and P0128

Used buying checklistWhat to check on a 2012 Buick Lacrosse before you buy

Compare the 2012 Buick Lacrosse

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Other model years

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Questions about the 2012 Buick Lacrosse

Is the 2012 Buick Lacrosse reliable?

Owners have filed 206 complaints about the 2012 Buick Lacrosse, 1.6 times a typical Lacrosse model year.

What is the 2012 Buick Lacrosse year score?

The 2012 Buick Lacrosse scores 55 out of 100 (below average). The score compares it with the other model years of the Buick Lacrosse: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2012 Buick Lacrosse?

Electrical system, with 62 complaints, typically around 66,000 miles. Next is engine (51).

How many recalls does the 2012 Buick Lacrosse have?

5 recalls, covering suspension, seats and electrical system.

Is the 2012 Buick Lacrosse safe in a crash?

In government crash tests the 2012 Buick Lacrosse scored 5 out of 5 stars overall, depending on body style and drivetrain (4 versions tested).

Was there a recall on the 2012 Buick Lacrosse electrical?

Yes, 1 recall: 13V173000. Check your VIN to see if your car still needs the free repair.

What year does the Buick Lacrosse have the most electrical problems?

The Buick Lacrosse model years with the most electrical complaints are 2008 (85 complaints), 2006 (84 complaints) and 2005 (80 complaints).

What gas mileage does the 2012 Buick Lacrosse get?

Official estimates for the 2012 Buick Lacrosse range from 20 to 28 mpg combined. The most efficient version (2.4L 4-cyl hybrid, FWD) gets 24 city and 35 highway.

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