2005 Buick Lacrosse Electrical System Problems
Owners have filed 80 complaints with NHTSA about electrical system problems on the 2005 Buick Lacrosse, 25% of all complaints for this model year. Half of the reports with a mileage happened before 100,000 miles. The words owners use most often: “ignition switch” (10% of reports).
- 80electrical system complaints
- 100,000median miles at failure
- 2mention a crash
- 0mention an injury
- 1related recalls
- 19%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Ignition switch: mentioned in 8 of 80 complaints (10%)
At what mileage do electrical system problems happen?
Based on 47 complaints that reported the odometer reading.
How serious are the reports?
Of 80 complaints, 2 mention a crash, 4 a fire.
Buick Lacrosse electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2019 Lacrosse | 1 | 14% | 56,000 |
| 2018 Lacrosse | 5 | 42% | 100,000 |
| 2017 Lacrosse | 11 | 31% | 10,000 |
| 2016 Lacrosse | 3 | 6% | 99,000 |
| 2015 Lacrosse | 9 | 20% | 7,000 |
| 2014 Lacrosse | 14 | 22% | 27,000 |
| 2013 Lacrosse | 54 | 42% | 62,750 |
| 2012 Lacrosse | 62 | 30% | 66,000 |
| 2011 Lacrosse | 32 | 19% | 55,355 |
| 2010 Lacrosse | 46 | 24% | 63,000 |
| 2009 Lacrosse | 31 | 29% | 64,500 |
| 2008 Lacrosse | 84 | 34% | 55,850 |
| 2007 Lacrosse | 75 | 30% | 78,250 |
| 2006 Lacrosse | 83 | 28% | 77,000 |
| 2005 Lacrosse | 80 | 25% | 100,000 |
When owners reported it
Related recalls (1)
Electrical system:ignition
Problem: This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Risk: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury. Additionally, a key knocked out of the run position will cause loss of engine power, power steering, and power braking, increasing the risk of a vehicle crash.
Fix: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 23, 2014. Owners may contact General Motors customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac), and 1-800-222-1020 (Chevrolet). GM's number for this recall is 14299.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
Gas. Leaking car smoking and cutting off
The contact owns a 2005 Buick LaCrosse. The contact received notification of NHTSA Campaign Number: 14V355000 (Electrical System) and the vehicle was repaired. The contact stated while driving 45 MPH, the vehicle inadvertently lost motive power and the contact was able to coast to the shoulder of…
The contact owns a 2005 Buick Lacrosse. The contact stated that the instrument panel was inoperable. The battery was replaced several times however, the failure persisted. The vehicle was taken to an independent mechanic where it was diagnosed that the mileage control circuit had malfunctioned. The…

Frequently asked questions
Do all 2005 Buick Lacrosses have electrical system problems?
No. NHTSA has 80 owner complaints about electrical system for the 2005 Buick Lacrosse (25% of the 315 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 2005 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 100,000 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2005 Buick Lacrosse?
The most frequent phrase is “ignition switch”, in 8 of 80 complaints.
Other 2005 Buick Lacrosse problems
See all 2005 Buick Lacrosse problems or electrical system problems across all Lacrosse years.