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What 6 owners told NHTSA about the 2019 Buick Lacrosse Eassist

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (6)Engine (3)Electrical system (1)Fuel system (1)

1 of 6 complaints match · Electrical system · clear filters

Feb 12, 2024Electrical systemEngine

The contact owns a 2019 Buick LaCrosse. The contact stated that the engine fan failed to shut off after turning off the vehicle. The failure occurred while the vehicle was idling in a drive-thru with the temperature gauge reading that the engine was in the cold position. The driver then drove at speeds between 60 - 70 MPH; after arriving at the residence, the engine fan failed to turn off. The contact disconnected the battery, and all the system functions were reset, and the fan shut off. The failure had become more persistent over time. The vehicle had not been taken to the dealer due to the fault codes being erased after disconnecting the battery. The vehicle had not been diagnosed. The vehicle had not been repaired. The manufacturer was made aware of the failure, and it was confirmed there was no recall for the failure. The failure mileage was 56,000.

NHTSA ODI 11571427

Working with the data? Download all 6 complaints as CSV · fetched from NHTSA July 27, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2019 Buick Lacrosse Eassist verdict →