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Transmission and drivetrainPart report

2009 Buick Lacrosse Transmission and drivetrain Problems

Complaints
3about this part
Share
3%of 106 total for the year
Median mileage
39,739miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the transmission and drivetrain of the 2009 Buick Lacrosse, 3% of the 106 complaints for this model year. Where a mileage was given, the median is 39,739 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.

“While entering interstate off ramp I started slowing down and vehicle accelerated to a very high speed. With extreme brake pedal pressure was not able to slow vehicle down for approximately 100 yards. I had to change 3 lanes to avoid collions with vehicles in front.”

NHTSA complaint #10898985, filed 2016-08, 55,012 miles

“The contact owns a 2009 Buick Lacrosse. While the vehicle was parked and powered on, the gear shift inadvertently shifted to reverse and rolled backwards. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 26,466.”

NHTSA complaint #10794502, filed 2015-11, 24,466 miles

“The contact owns a 2009 Buick Lacrosse. The contact stated that it was difficult to shift the vehicle from park into reverse. The gear shifter responded as if it would break when attempting to shift gears. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unavailable.”

NHTSA complaint #10626526, filed 2014-08

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2018325%
2017925%
2016715%
201525%
201446%
2013129%
20122412%
20111911%
2010179%
200933%
200852%
2007104%
200672%
2005196%

Other parts of the 2009 Buick Lacrosse

Exterior lighting
47 complaints
Electrical system
31 complaints
Air bags
27 complaints
Vehicle speed control
9 complaints
Engine
5 complaints
Fuel system
5 complaints
Brakes
4 complaints
Electronic stability control
3 complaints
Other or unknown
3 complaints
Seats
3 complaints
Body and structure
2 complaints
Engine cooling
1 complaints

← All problems reported for the 2009 Buick Lacrosse

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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