2009 Buick Lacrosse Fuel system Problems
- Complaints
- 5about this part
- Share
- 5%of 106 total for the year
- Median mileage
- 84,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the fuel system of the 2009 Buick Lacrosse, 5% of the 106 complaints for this model year. Where a mileage was given, the median is 84,000 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.
“Original purchaser of vehicle with under 120,000 miles and have a reduced power / accelerator pedal position sensor problem as recalled by GM for some make and models as same, but not mine as it did not manufactured at same plant as others (as I was told)? I'm finding it coincidental that I would have the same problem?”
NHTSA complaint #10937879, filed 2016-12, 100,000 miles“This has happened twice. Twice I was going about 55 or 60 miles per hour and suddenly I had reduced power. This happened in july and then several months ago. My engine light has come on and codes show that p1125, accelerator pedal position sensor fault, and p2138 accelerator pedal position performance. I recall I got a letter from GM about this matter, but I can not locate at this time..”
NHTSA complaint #10746542, filed 2015-08, 71,230 miles“Was driving down road got to my destination parked it and when I came out it would not start found a burnt fuel pump relay changed it and drove it home. 20 min later I drove it again and made it 2 miles same thing happened to relay only when I was driving it.”
NHTSA complaint #11161487, filed 2018-12, 134,000 miles“This has happened numerous times. The first time the check engine light came on, I don't recall the message I actually got; but I took it to a dealership and they replaced an emission control item which seemed to do the trick for awhile. Eventually, as I was driving along some time later, the message reduced engine power came up; and I could feel the engine immediately start to drag. In about 30 seconds to a minute, traction control off or something similar comes up. …”
NHTSA complaint #10596851, filed 2014-06, 36,000 miles“Reduced power/traction control light came on suddenly and reduced car power immediately. This made for a very dangerous situation while passing a truck and entering the highway. The car dropped speed very quickly making for a potentially deadly situation. This problem comes and goes with no warning until it happens. Research shows this is a big problem for GM vehicles especially the 2009 Buick lacross models. It's a disaster waiting to happen if it hasn't happened already. This needs to be recalled asap.”
NHTSA complaint #11258915, filed 2019-09, 84,000 milesRelated service bulletins
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10241417Aug 1, 2023This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 10222766Sep 16, 2022This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 10222765Sep 14, 2022This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
- 10222739Sep 13, 2022This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 10218873Aug 10, 2022This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10213816May 26, 2022This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable diesel fuel.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 1 | 14% |
| 2018 | 3 | 25% |
| 2017 | 1 | 3% |
| 2016 | 3 | 6% |
| 2015 | 3 | 7% |
| 2014 | 1 | 2% |
| 2013 | 9 | 7% |
| 2012 | 8 | 4% |
| 2011 | 5 | 3% |
| 2010 | 7 | 4% |
| 2009 | 5 | 5% |
| 2008 | 3 | 1% |
| 2007 | 3 | 1% |
| 2006 | 2 | 1% |
| 2005 | 7 | 2% |
Other parts of the 2009 Buick Lacrosse
47 complaintsElectrical system
31 complaintsAir bags
27 complaintsVehicle speed control
9 complaintsEngine
5 complaintsBrakes
4 complaintsElectronic stability control
3 complaintsOther or unknown
3 complaintsSeats
3 complaintsTransmission and drivetrain
3 complaintsBody and structure
2 complaintsEngine 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 30, 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