2012 Buick Lacrosse Electrical System Problems

Source: NHTSA · Updated Sep 17, 2026 · 62 complaints analyzed

Owners have filed 62 complaints with NHTSA about electrical system problems on the 2012 Buick Lacrosse, 30% of all complaints for this model year. Half of the reports with a mileage happened before 66,000 miles. The words owners use most often: “generator control” (10% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Generator control: mentioned in 6 of 62 complaints (10%)
  • Upon investigation: mentioned in 5 of 62 complaints (8%)

At what mileage do electrical system problems happen?

Based on 39 complaints that reported the odometer reading.

Under 10k miles4 · 10%
10k–25k miles3 · 8%
25k–50k miles9 · 23%
50k–75k miles6 · 15%
75k–100k miles6 · 15%
100k–150k miles8 · 21%
150k+ miles3 · 8%

How serious are the reports?

Of 62 complaints, 2 mention a crash, 1 a fire, 1 an injury.

Buick Lacrosse electrical system complaints by model year

Peak: 2008, with 84 complaints
2005: 802005802006: 83832007: 752007752008: 84842009: 312009312010: 46462011: 322011322012: 62622013: 542013542014: 14142015: 9201592016: 332017: 112017112018: 552019: 120191

n = 590 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2019 Lacrosse114%56,000
2018 Lacrosse542%100,000
2017 Lacrosse1131%10,000
2016 Lacrosse36%99,000
2015 Lacrosse920%7,000
2014 Lacrosse1422%27,000
2013 Lacrosse5442%62,750
2012 Lacrosse6230%66,000
2011 Lacrosse3219%55,355
2010 Lacrosse4624%63,000
2009 Lacrosse3129%64,500
2008 Lacrosse8434%55,850
2007 Lacrosse7530%78,250
2006 Lacrosse8328%77,000
2005 Lacrosse8025%100,000

When owners reported it

Peak: 2014, with 8 complaints
2011: 1201112013: 442014: 8201482015: 442016: 3201632017: 332018: 3201832019: 772020: 4202042021: 882022: 5202252023: 112024: 6202462025: 332026: 220262

n = 62 complaints · Source: NHTSA

Related recalls (1)

Electrical systemMay 6, 2013 · NHTSA campaign 13V173000 · 42,904 vehicles

Problem: 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.

Fix: 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.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

**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…

Received Sep 17, 2026 · NHTSA complaint 11765050

Shows service stability track

Received Jul 30, 2026 · NHTSA complaint 11753857

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…

Received Nov 5, 2025 · NHTSA complaint 11697783
Buick Lacrosse
BUICK LACROSSE FOURTH GENERATION China. Representative photo; appearance varies by model year. Photo: Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons.

Frequently asked questions

Do all 2012 Buick Lacrosses have electrical system problems?

No. NHTSA has 62 owner complaints about electrical system for the 2012 Buick Lacrosse (30% of the 206 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2012 Buick Lacrosse electrical system?

Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

At what mileage do electrical system problems start?

The median reported mileage is 66,000 miles: half of the reports with a mileage came before that.

What do owners say about electrical system problems on the 2012 Buick Lacrosse?

The most frequent phrase is “generator control”, in 6 of 62 complaints, followed by “upon investigation” (5).

See all 2012 Buick Lacrosse problems or electrical system problems across all Lacrosse years.