Chevrolet Impala - 2012

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Overview

Models:

Chevrolet Impala LS, LT and LTZ (retail); 1FL and 2FL (fleet)

Body style / driveline:

front-engine, front-drive, 5-to-6-passenger sedan

Construction:

two-sided galvanized steel (except roof); Quiet Steel (F.O.D.)

EPA vehicle class:

large car

Manufacturing location:

Oshawa, Ontario, Canada

Key competitors:

Ford Taurus, Dodge Charger, Toyota Avalon, Chrysler 300C

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Engines

 

3.6L V-6 DOHC SIDI VVT (LFX)

Application:

LS, LT, LTZ, F1, F2

Type:

3.6L V-6

Displacement (cu in / cc):

217 / 3564

Bore & stroke (in / mm):

3.70 x 3.37 / 94 x 85.6

Block material:

cast aluminum with cast-in-place iron bore liners

Cylinder head material:

aluminum

Valvetrain:

DOHC, four valves per cylinder, continuously variable valve timing

Ignition system:

electronic individual coil-on-plug; individual cylinder knock control and extended-life platinum-tip spark plugs

Fuel delivery

direct injection

Compression ratio:

11.5:1

Horsepower
(hp/ kW @ rpm):

300 / 224 @ 6800*

Torque (lb-ft / Nm @ rpm):

262 / 355 @ 5300*

Fuel:

regular unleaded or E85

Maximum engine speed (rpm):

7200

Emissions controls:

Evaporative emissions system, catalytic converter, equal-length exhaust, dual close-coupled and dual underfloor catalytic converters, positive crankcase ventilation, intake and exhaust cam phasers, electronic throttle control

EPA-estimated fuel economy (city / hwy):

18 / 30 (gas)
14 / 22 (E85)

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Transmission

 

Hydra-Matic 6T75 6-speed automatic (MH2)

Gear ratios (:1):

 

First:

4.48

Second:

2.87

Third:

1.84

Fourth:

1.41

Fifth:

1.0

Sixth:

0.74

Reverse:

2.88

Final drive ratio:

3.16

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Chassis/Suspension

Suspension type:

std with LS, LT: FE1/FE2; std with LTZ: FE3

Front:

independent MacPherson strut coil-over-spring, twin-tube dampers with gas-charged valving; coil springs; hollow 30-mm stabilizer bar; FE3 has hollow 34-mm stabilizer bar

Rear:

independent tri-link coil over strut, twin-tube dampers, variable-rate coil springs, 16-mm solid stabilizer bar (FE1); LTZ FE3 has dual-rate coil springs, hollow 19.4-mm stabilizer bar

Steering type:

power rack-and-pinion (all models)

Steering ratio:

13.3:1 (all models)

Steering wheel turns, lock-to-lock:

2.4

Turning circle, curb-to-curb
(ft / m):

38 / 11.6: models with 16-in. or 17-in. wheels
40 / 12.2: models with 18-in. wheels

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Brakes

Type:

four-wheel disc with power assist, vented front, solid rear

Rotor diameter x thickness (mm):

front: 303 x 30
rear: 278 x 11

ABS w/ traction control and StabiliTrak

std. on LS, LT, LTZ

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Wheels/Tires

 

LS, LT

Wheel size and type:

1LS/1FL: 16-in. painted cast aluminum
1LS: 17-in. fascia spoke
2FL: 17-in. machined aluminum
1LT: 17-in. machined aluminum
LTZ: 18-in. machined aluminum

Tires:

P225/60R16
P225/55R17
P235/50R18

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Dimensions

Exterior

Wheelbase (in / mm):

110.5 / 2807

Overall length (in / mm):

200.4 / 5091

Overall width (in / mm):

72.9 / 1851

Overall height (in / mm):

58.7 / 1487

Track (in / mm):

(all) front: 62.4 / 1585.5; rear : 61.5 / 1562

Curb weight (lb / kg):

LS: 3555 / 1613
LT w/3.5L: 3555 / 1613
LT w/3.9L: 3649 / 1655
LTZ: 3649 / 1655

Weight distribution
(% front / rear):

LS: 62 / 38
LT: 61 / 39
LTZ: 61 / 39

Drag coefficient:

0.33

Interior

 

front

rear

Seating capacity:

2/3

3

Headroom (in / mm):

39.4 / 1001

37.8 / 961

Legroom (in / mm):

42.3 / 1076

37.6 / 954

Shoulder room (in / mm):

58.7 / 1490

58.6 / 1488

Hip room (in / mm):

56.4 / 1432

57.2 / 1452

Rear pass-through (in / mm):

15.4 x 37.1 / 390 x 943

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Capacities

EPA passenger volume (cu ft / L):

104.5 / 2959

EPA interior volume (cu ft / L):

123.1 / 3486

Cargo volume (cu ft / L):

18.6 / 526.7

Trailer towing maximum (lb / kg):

1000 / 454

Fuel tank (gal / L):

17.5 / 66.2

Engine oil (qt / L):

3.5L: 4.5 / 4.3; 3.9L: 4.5 / 4.3

Cooling system (qt / L):

3.5L: 11.7 / 11.1; 3.9L: 12.2 / 11.5

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Note: Information shown is current at time of publication.

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Related Information

Translations

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