Buick LaCrosse - 2014

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Overview

Model:

2014 LaCrosse FWD/AWD

Body style / driveline:

front-drive/all-wheel-drive, front-engine, four-door, five- passenger sedan

Construction:

integral

EPA vehicle class:

midsize sedan

Manufacturing location:

Fairfax (Kan.) Assembly

Key competitors:

Acura TL, Lexus ES350, Lincoln MKZ

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Engines

Type:

2.4L DOHC I-4

3.6L V-6 VVT DI

Displacement (cu in / cc):

145 / 2384

217 / 3564

Bore & stroke (in / mm):

3.46 x 3.85 / 88 x 98

3.7 x 3.37 / 94 x 85.6

Block material:

precision sand-cast aluminum

cast aluminum

Cylinder head material:

cast aluminum

cast aluminum

Valvetrain:

DOHC with four valves per cylinder; continuously variable valve timing

DOHC with four valves per cylinder; continuously variable valve timing

Ignition system:

individual coil-on-plug

individual coil-on-plug; individual cylinder knock control

Fuel delivery:

direct injection and electronic throttle control

direct injection and electronic throttle control

Compression ratio:

11.2:1

11.5:1

Horsepower
(hp / kW @ rpm):

182 / 136 @ 6700 rpm SAE certified

304 / 227 @ 6800 SAE certified

Torque
(lb.-ft. / Nm @ rpm):

172 / 233 @ 4900 rpm SAE certified

264 / 358 @ 5300 SAE certified

Recommended fuel:

regular unleaded

regular unleaded or E85 (E85 capability not available in California and Northeast states with PZEV emissions)

Emissions controls:

close-coupled, catalytic converter; continuously variable valve timing; positive crankcase ventilation evaporative system; supplemental air injection system, partial zero emissions vehicle capable (eAssist)

dual close-coupled catalysts and single underfloor catalyst; variable valve timing, evaporative system

Fuel economy (city / hwy):

25 / 36

18 / 28 (FWD)
17 / 26 (AWD)

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Transmissions

Type:

Hydra-Matic 6T40 six-speed automatic

Hydra-Matic 6T70 six-speed automatic

Application:

2.4L four-cylinder

3.6L V-6

Gear ratios: (:1):

First:

4.58

4.48

Second:

2.96

2.87

Third:

1.91

1.84

Fourth

1.45

1.41

Fifth:

1.00

1.00

Sixth:

0.75

0.74

Reverse:

2.94

2.88

Final drive ratio:

2.64

2.77

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Electric Drive System (for 2.4L eAssist)

Type:

belt-driven, liquid-cooled motor/generator unit and lithium-ion battery system; air-cooled power electronics and battery pack

Maximum electric generating power:

15 kW @ 1570-3180 rpm

Maximum electric motor torque (cranking):

110 lb.-ft. / 150 Nm

Maximum electric motor torque (electric assist):

79 lb.-ft. / 107 Nm @ 1,000 rpm

Maximum electric motor power (electric assist):

15 hp / 11.2 kW @ 1,000-2,200 rpm

Lithium-ion battery:

115V, 0.5-kWh, 15 kW peak power

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Chassis/Suspension

Suspension (front):

MacPherson strut coil-over-spring; twin-tube dampers with gas-charged valving; hollow direct-acting stabilizer bar (eAssist and 3.6L FWD with 17- or 18-inch wheels/AWD 19-inch wheels); HiPer Strut coil-over-spring; twin-tube dampers with gas-charged valving; hollow direct-acting stabilizer bar; real-time damping and Sport Mode Selectivity (3.6L FWD with 19-inch or 20-inch wheels)

Suspension (rear):

four-link (eAssist and 3.6L FWD with 17- or 18-inch wheels); H-arm (3.6L AWD); H-arm with real-time damping and Sport Mode Selectivity (3.6L FWD with 19- or 20-inch wheels)

Steering type:

electric variable-effort power steering (eAssist and FWD V-6); power variable-effort: (AWD models)

Steering ratio:

15.2:1

Steering wheel turns, lock-to-lock:

2.75

Turning circle (ft / m):

36.8 / 11.2 (eAssist); 38.8 / 11.75

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Brakes

Type:

split, dual-circuit four-wheel-disc with power assist

Rotor diameter x thickness (in / mm):

V-6: front: 12.6 x 1.2 / 321 x 30 (vented)
rear: 12.4 x 0.9 / 315 x 23 (vented)
eAssist: front: 11.7 x 1.2 / 296 x 30 (vented)
rear: 11.5 x 0.47 / 292 x 12 (solid)

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Wheels/Tires

Wheel size and type:

17-in machined alloy (std w/ eAssist)

18-in machine-faced alloy, painted (std on 1SB, 1SL with 3.6L; opt on eAssist in non-PZEV states)

19-in painted, machined alloy (std on 1SL, 1SP AWD V-6)

19-in chrome alloy (std on 1SP FWD V-6, and opt on 1SL FWD V-6)

20-in alloy (std on 1SR)

Tires:

P235/50R17 low rolling-resistance all-season (std w/ eAssist)

P235/50R18 all-season

P245/45R19 all-season

P245/40R20 all-season

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Dimensions

Exterior

Wheelbase (in / mm):

111.7 / 2837

Overall length (in / mm):

197 / 5001

Overall width (in / mm):

73.1 / 1857

Overall height (in / mm):

59.2 / 1504

Track (in / mm):

front: 61.7 / 1567
rear: 62 / 1575

Curb weight (lb / kg):

3757 / 1704 (eAssist)
3896 / 1767 (3.6L V-6)

Interior

Seating capacity:

2 / 3

Headroom (in / mm):

front: 38 / 965
rear: 37.3 / 947

Legroom (in / mm):

front: 41.7 / 1059
rear: 40.5 / 1029

Shoulder room (in / mm):

front: 57.4 / 1459
rear: 56 / 1423

Hip room (in / mm):

front: 55.2 / 1402
rear: 53.9 / 1369

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Capacities

EPA interior volume
(cu ft / L):

99 / 2805

Passenger volume (cu ft / L):

101.7 / 2878

Cargo volume (cu ft / L):

10.8 / 306 (2.4L eAssist)
13.3 / 376 (3.6L V-6)

Trailer towing maximum
(lb / kg):

1000 / 454 (3.6L V-6)

Fuel capacity (gal / L):

15.7 / 59.4 (eAssist)
18 / 70 (3.6L V-6)

Engine oil (qt / L):

5 / 4.7 (2.4L)
5.5 / 5.2 (3.6L)

Cooling system ( qt / L):

9.6 /12 (2.4L)
7.6 / 7.2 (3.6L)

Note: Information shown is current at time of publication.

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