2011 Buick Lacrosse Engine Problems
- Complaints
- 30about this part
- Share
- 18%of 169 total for the year
- Median mileage
- 61,528miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 30 complaints about the engine of the 2011 Buick Lacrosse, 18% of the 169 complaints for this model year. Where a mileage was given, the median is 61,528 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The car was just purchased on 112619 and the day I bought I got warning light on dash next day car is in reduced power mode, took back to carmax to have this issue resolved they cleaned tps adv it was dirty poor contact. Two days later the light is back on this time the car is sent to Buick dealership in gilbert they replaced the throttle position sensor and I was told issue is fixed 24 hours later car is back in reduced power mode”
NHTSA complaint #11288482, filed 2019-12, 55,900 miles“2011 Buick Lacrosse (60,000 miles - properly maintained by 73 year old man) broke down on interstate hwy. While vacationing in knoxville, tn - Buick begins to stall and the engine light came on (was flickering and no acceleration). We stopped immediately at a gas station and called aaa - who towed us to a certified aaa repair/tow company. We initially suspected it would be the fuel pump or filter . …”
NHTSA complaint #10920427, filed 2016-11, 60,000 miles“Takata recall my Buick Lacrosse one time going down the road out of the blue it done engine power reduction,and then it just died on me.after that I did get it to start but it ran ruff and after a few weeks it would not start at all.”
NHTSA complaint #11190153, filed 2019-03, 147,000 miles“I was going 50 miles an hour down the road when I approached an intersection and stabilitrak came on and then stated reduced engine power. At which time I lost all power to get through intersection. Almost got hit by 3 directions trying to get my car out of the road. I finally coasted to the side of the road turned car off and back on drove for another mile before it did it again. This is not safe. I do not know what is wrong with it. I am now stuck at work I do not dare to drive it.”
NHTSA complaint #11171317, filed 2019-01, 97,000 miles“Twice after filling up with gas, my car was oils not start at the pump. Each time I had to wait several minutes before it would actually start. The second time it happened, I waited, it started then immediately quit again. There is a very hard start when it attempts to start as well. The engine light came on then immediately went off. I took the car directly to the dealership where it had to remain running until they could get it in. This was 540p on friday, may 25th before a holiday.”
NHTSA complaint #11098066, filed 2018-05, 73,704 milesRelated 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…
- 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…
- 11011709Nov 5, 2024This 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.
- 11011205Oct 28, 2024This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- 11010490Oct 5, 2024This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 11009532Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11009531Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11009756Sep 17, 2024This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and…
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 2011 Buick Lacrosse
32 complaintsSuspension
27 complaintsVisibility (wipers, defrost, mirrors)
23 complaintsTransmission and drivetrain
19 complaintsBrakes
18 complaintsOther or unknown
13 complaintsSteering
12 complaintsAir bags
11 complaintsElectronic stability control
9 complaintsSeats
9 complaintsVehicle speed control
9 complaintsBody and structure
8 complaints
← All problems reported for the 2011 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