YearToAvoid

2005 Buick LaCrosse Electrical System Problems

NHTSA has 155 owner complaints about electrical problems in the 2005 Buick LaCrosse, 49% of all 315 complaints for this model year. That is #3 highest electrical complaint count among 15 LaCrosse model years. These complaints report 2 crashes and 6 fires. Median mileage at failure: 91,000 miles.

Electrical System complaints
155
49% of 315
Crashes reported
2
Fires reported
6
Injuries reported
0
Median mileage
91,000 mi
Related recalls
2

When 2005 Buick LaCrosse electrical complaints were filed

First complaint Jan 4, 2005, latest May 6, 2026.

2005 Buick LaCrosse electrical system complaints: complaints filed per quarter212005 Q12007 Q32010 Q22012 Q42014 Q32016 Q12017 Q42026 Q2
155 complaints filed with NHTSA from 2005 Q1 to 2026 Q2; peak 2014 Q4 (21).

Electrical System recalls for the 2005 Buick LaCrosse

  1. NHTSA 15V519000Aug 14, 2015Electrical System429,170 vehicles

    Exterior lighting:headlights

    General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate.

    Risk: Headlamps that do not illuminate reduce the driver's ability to see the roadway and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash.

    Remedy: GM will notify owners, and dealers will replace the HDM, free of charge. The recall began on May 17, 2016. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737. GM's number for this recall is 14291.

  2. NHTSA 14V355000Jun 23, 2014Electrical System3,141,731 vehicles

    Electrical system:ignition

    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.

    Remedy: 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.

Electrical System complaints by LaCrosse model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 2005155 (49%)
  2. 2006210 (70%)
  3. 2007172 (69%)
  4. 2008134 (54%)
  5. 200970 (66%)
  6. 201050 (26%)
  7. 201133 (20%)
  8. 201264 (31%)
  9. 201354 (42%)
  10. 201419 (30%)
  11. 201513 (30%)
  12. 20164 (8%)
  13. 201711 (32%)
  14. 20185 (42%)
  15. 20191 (17%)

Frequently asked questions

Does the 2005 Buick LaCrosse have electrical problems?
NHTSA has 155 owner complaints about the electrical in the 2005 Buick LaCrosse, 49% of all complaints for this model year, including 2 that report a crash. Median mileage at failure is 91,000 miles.
Which Buick LaCrosse year has the most electrical complaints?
The 2006 Buick LaCrosse has the most electrical complaints (210), compared with 155 for the 2005.
Is there a electrical recall for the 2005 Buick LaCrosse?
Yes — 2 NHTSA recall campaigns for the 2005 Buick LaCrosse concern the electrical: 15V519000 and 14V355000.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.