2019 Buick Lacrosse Engine Problems
- Complaints
- 3about this part
- Share
- 43%of 7 total for the year
- Median mileage
- 28,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2019 Buick Lacrosse, 43% of the 7 complaints for this model year. Where a mileage was given, the median is 28,100 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Occasionally there is a loud sound in the cabin of water sloshing back and fourth under the dashboard. Some days it will happen when the engine starts. Other times, it is after driving several miles. Sometimes it happens a few days in a row. Other times it will go a week with no noise. The GM mechanic verified that the coolant level is fine. It happens when the car is stationary or moving. I have not heard it at high speeds.”
NHTSA complaint #11361466, filed 2020-09, 200 miles“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. …”
NHTSA complaint #11571427, filed 2024-02, 56,000 miles“When accelerating to get on to highway pushing on pedal but nothing happens, have to get pushing up and down until it goes. Has done this four time's and dealer says Buick has no fix for it. Have almost got rear ended twice.”
NHTSA complaint #11677212, filed 2025-07Related service bulletins
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11020254May 7, 2025This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in…
- 11019503Apr 18, 2025This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California…
- 11017443Apr 2, 2025This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
- 11017263Mar 25, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11016942Mar 4, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 3 | 43% |
| 2018 | 4 | 33% |
| 2017 | 5 | 14% |
| 2016 | 3 | 6% |
| 2015 | 1 | 2% |
| 2014 | 4 | 6% |
| 2013 | 31 | 24% |
| 2012 | 46 | 22% |
| 2011 | 30 | 18% |
| 2010 | 44 | 23% |
| 2009 | 5 | 5% |
| 2008 | 17 | 7% |
| 2007 | 9 | 4% |
| 2006 | 8 | 3% |
| 2005 | 6 | 2% |
Other parts of the 2019 Buick Lacrosse
3 complaintsElectrical system
1 complaintsFuel system
1 complaintsSuspension
1 complaints
← All problems reported for the 2019 Buick Lacrosse
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology