2015 Buick LaCrosse
US · Midsize Cars
The 2015 Buick LaCrosse is listed in the US market. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV), 2.4L 4-cylinder (SIDI)
- Transmission
- 6-speed automatic
- Drivetrain
- Varies by configuration: FWD, AWD
- Fuel
- Varies by configuration: Gasoline, Flex fuel, Hybrid
- Economy
- 20 mpg (11.8 L/100 km) to 28 mpg (8.4 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV), 2.4L 4-cylinder (SIDI) | |
| Displacement | 2.4 L to 3.6 L | |
| Cylinders | 4 to 6 | |
| Fuel type | Varies by configuration: Gasoline, Flex fuel, Hybrid | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 6 | |
| Drivetrain | Varies by configuration: FWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 20 mpg (11.8 L/100 km) to 28 mpg (8.4 L/100 km) | EPA fueleconomy.gov |
| City | 17 mpg (13.8 L/100 km) to 24 mpg (9.8 L/100 km) | |
| Highway | 26 mpg (9.0 L/100 km) to 35 mpg (6.7 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
4 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 3 recall campaigns for this model year. Last checked November 3, 2026.
17V437000: AIR BAGS:FRONTAL
General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD…
Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017.…
Reported July 10, 2017. View on NHTSA
16V651000: AIR BAGS:FRONTAL
General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark…
Remedy: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016.…
Reported September 8, 2016. View on NHTSA
15V666000: AIR BAGS:SIDE/WINDOW
General Motors LLC (GM) is recalling certain model year 2015 Buick LaCrosse, Cadillac XTS, Chevrolet Camaro, Equinox, Malibu, and GMC Terrain vehicles. The affected vehicles have front seat-mounted side impact air bags whose inflator may rupture upon its deployment.
Remedy: GM will notify owners, and dealers will replace the side impact air bag modules, free of charge. The recall began on October 19, 2015. Owners may contact Buick customer service at 1-800-521-7300, Chevrolet customer service at…
Reported October 16, 2015. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved November 6, 2026 · US Government public data
- NHTSA vPIC · retrieved October 13, 2026 · US Government public data
Source checked: November 6, 2026
Data verified: November 6, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2014 Buick LaCrosse
Varies by configuration: Flex fuel, Hybrid, Gasoline
Varies by configuration: 3.6L 6-cylinder (SIDI; FFV), 2.4L 4-cylinder (SIDI), 3.6L 6-cylinder (SIDI) · Varies by configuration: FWD, AWD
28 mpg (8.4 L/100 km) to 20 mpg (11.8 L/100 km) - 2016 Buick LaCrosse
Varies by configuration: Flex fuel, Gasoline, Hybrid
Varies by configuration: 3.6L 6-cylinder (SIDI; FFV), 3.6L 6-cylinder (SIDI), 2.4L 4-cylinder (SIDI; eAssist) · Varies by configuration: AWD, FWD
28 mpg (8.4 L/100 km) to 20 mpg (11.8 L/100 km)
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Frequently asked questions
What engine does the 2015 Buick LaCrosse have?
Varies by configuration: 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV), 2.4L 4-cylinder (SIDI). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2015 Buick LaCrosse?
Combined fuel economy is 20 mpg (11.8 L/100 km) to 28 mpg (8.4 L/100 km), as published by the source shown in the specification table.
Is the 2015 Buick LaCrosse front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: FWD, AWD.
Are there recalls for the 2015 Buick LaCrosse?
NHTSA lists 3 recall campaigns for this model year (last checked November 3, 2026). Details are in the Recalls section.