2015 Buick Lacrosse problems & reliability
44 owner complaints filed with NHTSA for the 2015 Buick Lacrosse, alongside 3 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
3 complaints report injuries (4 injured).
Federal crash records (FARS 2020–2023): 2015 Buick Lacrosse vehicles were involved in 32 fatal crashes with 16 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Steering → | 12 | 27% |
| Electrical System | 9 | 20% |
| Air Bags | 7 | 16% |
| Service Brakes | 4 | 9% |
| Unknown OR Other | 4 | 9% |
| Exterior Lighting | 3 | 7% |
| Fuel/propulsion System | 2 | 5% |
| Power Train | 2 | 5% |
| Seat Belts | 2 | 5% |
| Vehicle Speed Control | 2 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 26,000 miles (middle 50% between 14,000 and 76,000 miles), based on 25 complaints that included mileage.
Complaints by incident year
What owners report
“I had first seen a check engine light for a month and it would come on and off and sometimes it would stay off for about a week before it comes back on and do the same thing. I had noticed some slippage within the transmission a week prior to this incident and was looking to take it in for an inspection but money is…”
Power Train · filed Nov 10, 2025
“The contact owns a 2015 Buick LaCrosse. The contact stated that while driving 25 MPH on a main road and attempting to make a right turn, the contact noticed that the steering wheel had become increasingly difficult to steer. The message "Service Power Steering - Drive with Care" was displayed. The local dealer was not…”
Steering · filed Jun 11, 2025
“The contact owns a 2015 Buick LaCrosse. The contact stated that while driving on the highway at 55 MPH, the vehicle jerked briefly before shifting into gear. The ABS warning light was illuminated. The vehicle was taken to an independent mechanic, where the vehicle was diagnosed, and the contact was informed that the…”
Service Brakes, Hydraulic · filed Apr 29, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
1,574 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2015 Buick Lacrosse. The 10 most recent:
PI to help diagnose A/C concern
PIT5099J · Service Bulletin/Repair Instructions · issued Jul 21, 2026
This document provides the technician with a diagnostic tip if the vehicle stalls and set diagnostic trouble code P0191 and may also set P0172. The diagnostic tip has the technician inspect the high pressure fuel pump…
PIP6113 · Service Bulletin/Repair Instructions · issued May 19, 2026
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902U · Service Bulletin/Repair Instructions · issued Jan 8, 2026
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions…
PIT5214G · Service Bulletin/Repair Instructions · issued Nov 20, 2025
New Vehicle Monitoring Programs Section in IVH
13598 · Other · issued Sep 9, 2025
This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-180 · Service Bulletin/Repair Instructions · issued Sep 4, 2025
Provide info on that parts restriction ending for the rear diff clutch control 19435910
PIP6027A · Service Bulletin/Repair Instructions · issued Aug 27, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2015 Buick Lacrosse has 3 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2015 Buick Lacrosse?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 26,000 miles — budget accordingly if the car is approaching that mileage.