Power train: automatic transmission
Risk. Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a…
NHTSA has logged 12 owner complaints about the 2018 Buick Lacrosse, most often about the electrical system. It is covered by 3 safety recalls, and for recall 20V-668 the manufacturer reports only 79% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 11, 2025. Updated daily. Photo: Kevauto, CC BY-SA 4.0.
12 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 5 | 0 |
| Engine | 4 | 0 |
| Power train | 3 | 0 |
| Fuel/propulsion system | 2 | 0 |
| Vehicle speed control | 2 | 0 |
| Fuel system, gasoline | 1 | 0 |
| Service brakes, hydraulic | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a…
Risk. A reduction of braking performance can increase the risk of a crash.
Risk. A damaged fuel line can create a fuel leak, increasing the risk of a fire.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Buick.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Lacrosse median. How we score
2018 Buick LaCrosse 4 DR AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
When I get to a stop sign, and a stop light, when trying to accelerate after a complete stop, the car would struggle to accelerate to go forward. Where the shifting gears would start blinking, and the warning lights (engine power reduced, engine light, and the traction safety collision light) would…
The contact owns a 2018 Buick Lacrosse. The contact stated that the key fob failed to open the doors and the vehicle was unable to be restarted. The failure had recurred on several occasions. The contact stated that the batteries in the key fob were replaced but the failure persisted. The local…
I have brought my 2018 Buick Lacrosse to two different Buick dealerships who say that even though a special instruction letter was recognized and a recall was observed, because my check light went out and the codes on the car where cleared, they will not fix either recall. On three different…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.