Research 2015 Buick LaCrosse specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

4dr Sedan FWD


Disc - Rear (Yes or ) Yes
Rear Brake Rotor Diam x Thickness (in) 12.4 x 0.9
Drum - Rear (Yes or )
Rear Drum Diam x Width (in)
Disc - Front (Yes or ) Yes
Brake ABS System 4-Wheel
Brake Type Pwr
Front Brake Rotor Diam x Thickness (in) 12.6 x 1.2

Cargo Area Dimensions

Trunk Volume (ft³) 13.3

Cooling System

Total Cooling System Capacity (qts) 7.4


Cold Cranking Amps @ 0° F (Primary) 512
Maximum Alternator Capacity (amps) 150


EPA Greenhouse Gas Score
Tons/yr of CO2 Emissions @ 15K mi/year 8.4


SAE Net Horsepower @ RPM 304 @ 6800
Engine Order Code LFX
Engine Type Gas V6
Displacement 3.6L/217
Fuel System Direct Injection
SAE Net Torque @ RPM 264 @ 5300

Exterior Dimensions

Liftover Height (in)
Track Width, Rear (in) 62.0
Track Width, Front (in) 61.7
Height, Overall (in) 59.2
Width, Max w/o mirrors (in) 73.1
Length, Overall (in) 196.9
Wheelbase (in) 111.7
Min Ground Clearance (in) - TBD -

Fuel Tank

Fuel Tank Capacity, Approx (gal) 18.5

Interior Dimensions

Front Leg Room (in) 41.7
Front Head Room (in) 38.0
Second Head Room (in) 37.3
Second Leg Room (in) 40.5
Second Shoulder Room (in) 56.0
Second Hip Room (in) 53.9
Front Shoulder Room (in) 57.4
Passenger Capacity 5
Passenger Volume (ft³) 100.0
Front Hip Room (in) 55.2


Fuel Economy Est-Combined (MPG) 21
EPA Fuel Economy Est - Hwy (MPG) 28
EPA Fuel Economy Est - City (MPG) 18


Turning Diameter - Curb to Curb (ft) 38.8
Lock to Lock Turns (Steering) 2.75
Steering Ratio (:1), Overall 15.2
Steering Type Pwr
Turning Diameter - Wall to Wall (ft)


Body Style Sedan
Vehicle Name Buick LaCrosse


Suspension Type - Front MacPherson Strut
Suspension Type - Front (Cont.)
Suspension Type - Rear (Cont.)
Shock Absorber Diameter - Front (mm) N/A
Shock Absorber Diameter - Rear (mm) N/A
Stabilizer Bar Diameter - Front (in) - TBD -
Stabilizer Bar Diameter - Rear (in)
Suspension Type - Rear 4-Link


Front Tire Order Code RA9
Rear Tire Order Code RA9
Spare Tire Order Code QCL
Spare Tire Order Code
Front Tire Size P225/55R17
Rear Tire Size P225/55R17
Spare Tire Size T125/70R17
Spare Tire Size


Wt Distributing Hitch - Max Tongue Wt. (lbs) 100
Dead Weight Hitch - Max Trailer Wt. (lbs) 1000
Dead Weight Hitch - Max Tongue Wt. (lbs) 100
Wt Distributing Hitch - Max Trailer Wt. (lbs) 1000


Drivetrain Front Wheel Drive
Fifth Gear Ratio (:1) 1.00
Fourth Gear Ratio (:1) 1.41
Third Gear Ratio (:1) 1.84
Second Gear Ratio (:1) 2.87
First Gear Ratio (:1) 4.48
Trans Description Cont. Again
Trans Description Cont. Automatic w/OD
Trans Type 6
Trans Order Code M7W
Final Drive Axle Ratio (:1) 2.77
Clutch Size (in)
Reverse Ratio (:1) 2.88
Sixth Gear Ratio (:1) 0.74


EPA Classification Midsize Cars

Weight Information

Base Curb Weight (lbs) 3895


Spare Wheel Size (in)
Front Wheel Material Aluminum
Rear Wheel Material Aluminum
Spare Wheel Material Steel
Rear Wheel Size (in) 17 x - TBD -
Spare Wheel Size (in) 17 x - TBD -
Front Wheel Size (in) 17 x - TBD -