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2009 Buick LaCrosse - Specs

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2009 Buick LaCrosse

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Engine Specs
Transmission Specs

Exterior Dimensions
Interior Dimensions

Capacities



Dimensions and capacities are in inches unless otherwise specified.

Model Lineup

Engines

Transmission

3.8L V-6 (L26)
5.3L V-8 (LS4)
4-speed auto
(4T65)

Application

Standard
-
Standard

Type

Standard
-
Standard

Displacement (cu in / cc)

-
Standard
Standard

Engines

3.8L V-6 (L26)

5.3L V-8 (LS4)

Application

std. on CX, CXL

std. on Super

Type

3.8L V-6

5.3L V-8

Displacement (cu in / cc)

231 / 3791

325 / 5327

Bore & stroke (in / mm)

3.80 x 3.40 / 96.5 x 86.4

3.78 x 3.62 / 96 x 92

Block material

cast iron

cast aluminum

Cylinder head material

cast iron

cast aluminum

Valvetrain

overhead valve, 2 valves per cylinder

overhead valve, 2 valves per cylinder

Ignition system:

electronic direct ignition system (DIS) and electronic spark control (ESC) and extended life platinum-tipped spark plugs

coil-near-plug, iridium electrode tip / iridium core spark plugs, low resistance spark plug wires

Fuel delivery

returnless sequential port fuel injection

Active Fuel Management; sequential fuel injection

Compression ratio:

9.4:1

10:1

Horsepower (hp / kW @ rpm)

200 / 149 @ 5200*

300 / 224 @ 5600*

Torque (lb-ft / Nm @ rpm)

230 / 312 @ 4000*

323 / 438 @ 40 00*

Recommended fuel

regular unleaded

premium recommended but not required

Maximum engine speed (rpm)

6000

6100

Emissions controls

evaporative system, single close-coupled catalytic converter, positive crankcase ventilation, electronic throttle control; exhaust gas recirculation, SAI-supplemental air injection-SULEV, fast response oxygen sensor-SULEV

underfloor catalytic converter, Quick Sync 24X ignition, returnless fuel rail, fast-response oxygen sensor

Estimated fuel economy (city / hwy)

17 / 28

16 / 24


Transmission
2009 Buick LaCrosse

Type

Hydra-Matic 4T65 electronically controlled 4-speed automatic with overdrive and torque converter clutch

Gear ratios (:1)

   1st

2.92

   2nd

1.56

   3rd

1.00

   4th

0.70

  Reverse

2.38

Final drive ratio

CX, CXL
3.05:1
Super

2.93:1


Chassis/Suspension
2009 Buick LaCrosse

Front

CX, CXL
MacPherson strut coil-over-spring; twin-tube dampers with four-stage valving
30-mm tubular stabilizer bar
Super
monotube dampers with gas-charged valving

20-mm hollow direct acting stabilizer bar

Rear

CX, CXL
17-mm tubular direct-acting stabilizer bar
Super
Independent, tri-link coil-over-strut; twin-tube dampers; dual-rate coil springs

19.4-mm tubular direct-acting stabilizer bar

Steering type

CX
low-friction power rack-and-pinion
Super

high-precision, low-friction rack-and-pinion Magnasteer II with StabiliTrak

Steering ratio

CX, CXL
15.3:1
Super

13.3:1

Steering wheel turns,
lock-to-lock

CX, CXL
2.39
Super

2.3

Turning circle,
curb to curb (ft / m)

CX, CXL
40.4 / 12.3
Super

40 / 12.2


Brakes
2009 Buick LaCrosse

Type

4-wheel disc with power assist; vented front, solid rear

Rotor diameter x thickness (in / mm)

Front CX, CXL
11.7 x 1.26 / 297 x 32
Super
12.72 x 1.18 / 323 x 30
Rear CX, CXL
10.6 x 0.55 / 270 x 14
Super

10.94 x 0.43 / 278 x 11


Wheels / Tires
2009 Buick LaCrosse

Wheel size and type

CX

16-inch painted aluminum wheels

CXL (opt. on CX)
17-inch chrome-clad wheels
Super Standard
18-inch painted aluminum (std.)
Optional
18-inch aluminum w/ chrome finish (opt.)
Tires CX
P225/60R16 ALS (all-season)
CXL
P225/55R17 AL2 (touring)
Super
P235/R50R18 Michelin ALS (all-season)

Exterior Dimensions
2009 Buick LaCrosse

Wheelbase (in / mm)

110.5 / 2807

Overall length (in / mm)

198.1 / 5031

Overall width (in / mm)

73 / 1853

Overall height (in / mm)

57.4 / 1458

Track (in / mm)

Front
61.7 / 1566
Rear

61.5 / 1561

Curb weight (lb / kg)

CX

3495 / 1585

CXL
3502 / 1589
Super
3770 / 1710

Interior Dimensions
2009 Buick LaCrosse

Seating capacity (front / rear)

5 / 6 (2 or 3 front / 3 rear)

Headroom (in / mm)

Front
39.4 / 1000
Rear

37.2 / 946

Legroom (in / mm)

Front
42.3 / 1074
Rear

37.6 / 955

Shoulder room (in / mm)

Front
57.2 / 1453
Rear

57 / 1448

Hip room (in / mm)

Front
55.3 / 1404
Rear

54.6 / 1387


Capacities
2009 Buick LaCrosse

EPA passenger volume (cu ft / L)

99.4 / 2815

EPA interior volume (cu ft / L)

115.4 / 3268

Cargo volume (cu ft / L)

CX, CXL
16 / 453
Super

14.3 / 406

Trailer towing maximum (lb / kg)

1000 / 454 (est. – all models)

Fuel tank (gal / L)

17.5 / 66.24

Engine oil (qt / L)

3.8L
4.5 / 4.3
5.3L

6.0 / 5.7

Cooling system (qt / L)

3.8L
11.6 / 11
5.3L

13.3 / 12.6

*SAE certified. A new voluntary power and torque certification procedure developed by the SAE Engine Test Code committee was approved March 31, 2005. This procedure (J2723) ensures fair, accurate ratings for horsepower and torque by allowing manufacturers to certify their engines through third-party witness testing. GM was the first auto manufacturer to begin using the procedure and expects to use it for all newly rated engines in the future.

Note: Information shown is current at time of publication.

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Although New-Cars.com checks with auto manufacturers and their representatives to confirm the accuracy of the data, it makes no guarantee or warranty, either expressed or implied with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.

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