YearToAvoid

2005 Buick LaCrosse Engine Problems

NHTSA has 27 owner complaints about engine problems in the 2005 Buick LaCrosse, 9% of all 315 complaints for this model year. That is #5 highest engine complaint count among 15 LaCrosse model years. These complaints report 1 crash. Median mileage at failure: 35,435 miles.

Engine complaints
27
9% of 315
Crashes reported
1
Fires reported
0
Injuries reported
0
Median mileage
35,435 mi
Related recalls
0

When 2005 Buick LaCrosse engine complaints were filed

First complaint Jan 4, 2005, latest Oct 21, 2020.

2005 Buick LaCrosse engine complaints: complaints filed per month3Jan 2005Jul 2006Aug 2007Mar 2009Apr 2010Aug 2014Sep 2015Apr 2017
27 complaints filed with NHTSA from Jan 2005 to Oct 2020; peak Aug 2014 (3).

Engine recalls for the 2005 Buick LaCrosse

No safety recalls on record for this model year.

Engine complaints by LaCrosse model year

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

  1. 200527 (9%)
  2. 200615 (5%)
  3. 200717 (7%)
  4. 200824 (10%)
  5. 200912 (11%)
  6. 201062 (33%)
  7. 201142 (25%)
  8. 201262 (30%)
  9. 201333 (26%)
  10. 20147 (11%)
  11. 20153 (7%)
  12. 20169 (19%)
  13. 20178 (24%)
  14. 20185 (42%)
  15. 20193 (50%)

Frequently asked questions

Does the 2005 Buick LaCrosse have engine problems?
NHTSA has 27 owner complaints about the engine in the 2005 Buick LaCrosse, 9% of all complaints for this model year, including 1 that report a crash. Median mileage at failure is 35,435 miles.
Which Buick LaCrosse year has the most engine complaints?
The 2010 Buick LaCrosse has the most engine complaints (62), compared with 27 for the 2005.
Is there a engine recall for the 2005 Buick LaCrosse?
No NHTSA recall campaign for the 2005 Buick LaCrosse is classified under engine. Complaints alone do not trigger a recall; check the full recall list and your VIN.

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.