2004 CHEVROLET IMPALA

Unique to Canada

NEW FOR 2004

  • Impala SS model
  • Body color side moldings on LS and SS
  • Redesigned sport cloth seats, buckets (in sport cloth and leather) and bench (in sport cloth)
  • Sport cloth replaces custom cloth (blue color only available on base trim)
  • Sport Appearance Package on Impala Sedan
  • Improved HVAC module and control head
  • New exterior colors: Sandstone Metallic, Medium Gray Metallic (Bronzemist and Sandrift Metallic discontinued)

MODEL LINEUP

 
Engines
Transmission
3400 3.4L V-6
3800 3.8L
Series II V-6
3800 3.8L
Supercharged
Series II V-6
4-spd auto
(Hydra-Matic 4T65-E)
Impala Sedan
s
o
-
s
Impala LS
-
s
-
s
Impala SS
-
-
s
s
(HD version)

Key:
Standard s
Optional o
Not available -

CUSTOMER PROFILE

The Impala buyer includes middle-aged adults with older children or empty nesters, as well as some retirees. Key buying reasons for the Impala include value, overall vehicle quality, proven performance, style, roominess, safety and riding comfort.

PRODUCT HISTORY

1956

Introduced as a "dream car" at the 1956 Motorama auto show

1958

First Impala rolls off production line

1959

Complete redesign with full model range of sedans, hardtops, wagons and a convertible

1961

Complete redesign; legendary 409 engine introduced

1965

Complete redesign; world record sales of more than 1.2 million units

1971

Complete redesign; length stretched to nearly 220"

1973

Air bags installed for the first time on a test fleet of Impalas

1977

Complete redesign; shorter wheelbase

1980

Complete redesign

1981

"Computer Command Control" introduced for increased driveability

1985

Styling changes and firmer suspension

1986

Impala name discontinued (replaced by Caprice)

1994

The "Impala SS," a high-performance, uplevel Caprice, debuts

1996

Final year for production of the Impala SS

2000

Impala name resurrected on all-new midsize model with fullsize interior

2001

Driver information and convenience centre standard on Impala LS

2002

Enhanced premium sound system with standard CD; LATCH child seat safety restraint system; standard dual zone climate control; new LS Sports Appearance Package

2003

Driver's seat-mounted side air bag is now optional; new wheels

2004

Impala SS model once again introduced; body color side moldings on LS and SS



2004 IMPALA SPORTS SS PERFORMANCE

It was 1961. "Leave it to Beaver" was on the tube, Alan Shepard blasted into space, the Dick Tracy Wrist Radio was the hot new toy, and in the U.S. stamps cost 4 cents and bread was 21 cents a loaf. It was the year of the ox, and the first year for the Impala Super Sport.

For the 2004 model year, the car that launched Chevrolet's celebrated SS series returns to the lineup with the thrust of a 240-horsepower (179-kw) supercharged V-6 with a whopping 280 lb.-ft. (380 Nm) of torque.

The added power comes with a beefed-up four-wheel independent suspension and high-performance speed-rated tires with 17-inch diamond-cut cast aluminum wheels. The monochromatic black SS also will feature bright stainless steel dual exhaust tips, fog lamps, a six-gauge cluster including boost gauge, and "SS" badging.

The new Impala SS also offers a comprehensive safety package, solid body structure, room for five passengers, plenty of cargo space, a surprising number of amenities for the price, and a track record of outstanding quality, reliability and durability. Impala earned five stars, the highest U.S. government safety rating, in frontal crash testing for driver and passenger.

Chevrolet is working with the GM Performance Division to develop the Impala SS and other SS vehicles that feature exhilarating acceleration, enhanced handling and superior driveability. Also debuting in the 2004 model year is the Supercharged Monte Carlo SS.

3800 Supercharged V-6

The Impala SS features GM's 3800 Series II supercharged V-6. This award-winning engine features a torque curve that is consistently high over a broad operating range, providing instant off-the-line acceleration and ample power for highway merging and passing.

A supercharger is a device that forces a concentrated charge of air into the intake manifold, resulting in a more powerful combustion stroke. The benefit is increased torque and horsepower. The 3800's Eaton supercharger is belt-driven for smooth, linear power with virtually no lag.

This 3.8L engine generates 240 hp (179 kw) at 5200 rpm, and an impressive 280 lb.-ft. (380 Nm) of torque at 3600 rpm, giving the Impala SS excellent off-the-line performance.

Among improvements for 2004, the 3800 SC will be outfitted with a direct-mount air-conditioning compressor that reduces vibration for an improvement to the engine's already excellent noise, vibration and harshness (NVH) levels. In addition, powder-metal connecting rods replace cast-iron rods for increased durability and reduced weight.

In the Impala SS, the 3800 SC will be mated to a heavy-duty version of the Hydra-Matic 4T65-E four-speed electronically controlled automatic transmission.

Chassis, suspension upgrades

The Impala provides a solid foundation for superb ride and handling. A unique extruded aluminum engine cradle saves weight and helps isolate engine noise and vibration, and the overall tautness of the Impala's body structure allows chassis components to be finely tuned to enhance performance. Impala also features four-wheel independent suspension with MacPherson struts at all four corners, power rack-and-pinion steering, electronic traction control, and large-diameter four-wheel disc power-assisted braking with ABS and race-inspired cooling ducts.

Chassis and suspension enhancements provide the Impala SS with sportier ride and handling capabilities. Spring rates are stiffened in both front and rear. The combination helps reduce body roll in cornering and improves the driver's feel of road conditions.

Impala SS also will get beefier suspension components such as 34-mm front and 19.5-mm rear stabilizer bars (compared to 30 mm/17 mm in Impala and Impala LS), along with refinements to the rear trailing link and rear strut mounts.

Goodyear P235/55R17 W-rated tires mounted on 17-inch diamond-cut cast aluminum wheels provide Impala SS with excellent road holding and cornering capabilities along with a smooth ride.

SS styling cues

Unique styling cues help set the SS apart from its siblings and establish a link with other Chevy SS models. Impala SS will be available only in black with a monochromatic theme, including color-keyed bodyside moldings, "SS" badging, unique decklid spoiler and lowered front fascia with integrated fog lamps.

Other highlights include a Corvette-inspired body-color rear taillamp appliqué, a unique spoiler and dual bright stainless-steel exhaust tips. Inside, the Impala SS will feature a racing-inspired six-gauge cluster with boost gauge, graphite trim appliqués "SS" badging, and "SS" logos on door trim and floor mats.

Award-winning plant

The 2004 Impala SS will be built alongside the Impala and Impala LS at the award-winning Oshawa No. 1 Car Assembly Plant in Ontario, Canada. GM recently added a third shift of production to allow Chevy dealers to keep up with demand for Impala, which has ranked in the Top 10 in U.S. passenger-car sales for the past four years.

Other improvements to Impala line

The Impala's seats receive a contemporary styling upgrade for 2004, with new sport cloth for the 60/40 split-bench front seat and the 40/40 front buckets with console. New sport leather also is available for the 40/40 buckets with console. The leather for the 60/40 split-bench front seat is carried over from 2003.

On the dash, the heating, ventilation and air conditioning (HVAC) system receives improvements on airflow and the control head receives a contemporary redesign.

The LS and SS receive new exterior body-color side moldings, and the base Impala has an available new sport appearance package that includes a spoiler and Corvette-inspired, body-color taillamp appliqué.

Two new exterior colors debut for 2004: Sandstone Metallic and Medium Gray Metallic.

Roominess and comfort

The 2004 Impala offers unparalleled large-car capability with mid-size exterior proportions and agility. The base model has room for six passengers and 18.6 cubic feet (527L) of trunk space.

The Impala sedan comes well equipped with auxiliary lighting in the glove box and trunk, electric rear window defogger, delayed exit/entry lighting, and intermittent variable-speed windshield wipers. Impala LS has a long list of standard features, including passenger assist grips, a trunk cargo net, split-folding rear seat and cruise control.

Safety and security

The National Highway Traffic Safety Administration rates Impala as five-star/five-star - the highest rating possible - for both front- and side-impact testing for front and rear passengers. Impala has met 2003 federal head impact criteria since its introduction.

More than 100 standard safety and security features make Impala a worry-free car to drive. Standard features on Impala LS include remote keyless entry, traction control, tire inflation monitoring system, anti-lock brakes and available driver's side-impact air bag; all are optional on the base Impala sedan.

Standard features on all models include a passive theft-deterrent system, battery rundown protection and daytime running lamps. In addition, a "limp home" mode allows the car to be driven to a nearby service station even after a complete loss of coolant.

# # #


STANDARD AND OPTIONAL FEATURES

EXTERIOR FEATURES

Impala

Impala LS

Impala SS

Antenna - rear-window integrated

S

S

S

Body panels - 2-sided galvanized steel (except roof)

S

S

S

Fog lights

-

S

S

Glass - Solar-Ray, tinted

S

S

S

Mirrors - power remote control

S

S

S

Mouldings - bodyside, Graphite

S

-

-

Mouldings - bodyside, body-colour

-

S

S

Mouldings - lower bodyside, aero ground effect, Graphite on Impala, body-colour on LS and SS

S

S

S

Mouldings - lower fascia extensions (requires LS Sport Appearance Package)

-

O

S

Package - Sport Appearance: includes rear spoiler and Corvette inspired rear tail lights

O

-

-

Package - LS Sport Appearance: includes lower fascia extensions, unique 16" Diamond-cut aluminum wheels, chrome stainless steel exhaust tip, Corvette-inspired rear tail lights, Graphite interior trim appointments, embroidered floor mats, Sport buckets with leather seating surfaces, power 6-way front-passenger seat and heated front bucket seats

-

O

-

Spoiler - rear deck-lid (requires Sport Appearance Package)

O

S

S

Spoiler - rear deck-lid, delete

-

O

-

Sunroof - power, sliding glass panel with sunshade

-

O

O

Tires - P225/60R16 all-season

S

-

-

Tires - P225/60R16 all-season touring (included with 3.8L 3800 Series II V6 engine)

O

S

-

Tires - P235/55R17 all-season performance, W-rated

-

-

S

Wheels - 16" x 6.5" steel, bolt-on wheel covers

S

-

-

Wheels - 16" x 6.5" 5-spoke Sport aluminum (included with 3.8L 3800 Series II V6 engine)

O

-

-

Wheels - 16" x 6.5" 5-spoke machine-faced aluminum

-

S

-

Wheels - 17" x 6.5" Diamond-cut aluminum

-

-

S

Windshield wipers - 2-speed with variable delay (intermittent)

S

S

S

INTERIOR FEATURES

Impala

Impala LS

Impala SS

Air conditioning - manual, dual-zone

S

S

S

Air filtration system - pollen filter

S

S

S

Auxiliary power outlet - one front (rear auxiliary power outlet included with floor console when bucket seats are specified on base and LS models)

S

S

S

Cargo convenience net

O

O

S

Cruise control - steering wheel-mounted, electronic with resume, coast and decelerate/accelerate features

S

S

S

Defogger - electric rear-window

S

S

S

Floor mats - front and rear, carpeted (embroidered on SS)

S

S

S

Heat ducts - rear seat, floor

S

S

S

Instrumentation - analogue gauges (includes speedometer, coolant temperature and fuel gauges) and Driver Message Centre (includes system problem notification, traction active, low oil pressure, GM Oil Life System, low oil level (not included with 3.4L V6 engine), low fuel level, low washer fluid level and trunk open indicators)

S

S

S

Instrumentation - tire inflation monitoring system; included with available anti-lock braking system (ABS)

O

S

S

Instrumentation - tachometer

-

S

S

Instrumentation - oil pressure and supercharger boost gauges

-

-

S

Instrumentation - Driver Information and Convenience Centre (includes trip computer, outside temperature, compass, universal garage door opener and audible/visible content theft-deterrent system); requires available anti-lock braking system (ABS)

O

O

O

Lights - courtesy, delayed illuminated entry/exit, theatre dimming, front reading, rear courtesy/reading and trunk

S

S

S

Package - Mirror: includes interior rear-view mirror with auto-dimming electrochromic feature, dual reading lights and heated exterior power remote control mirrors

O

O

O

Retained accessory power

S

S

S

Steering wheel - leather-wrapped (included with available leather seating surfaces)

O

S

S

Steering wheel - leather-wrapped with sound system controls

O

O

O

Sunshades - LH and RH padded; illuminated vanity mirrors with extensions

S

S

S

Tilt-Wheel adjustable steering column

S

S

S

Trunk - release, power remote

S

S

S

Windows - power, driver's express-down and passenger lock-out features

S

S

S

Wood grain - simulated accents

S

S

-

SEATS

Impala

Impala LS

Impala SS

Cloth 60/40 split-front bench with storage armrest

S

-

-

Sport cloth 60/40 split-front bench with storage armrest and power 6-way driver adjuster (includes split-folding rear seatback)

O

-

-

Heated 60/40 split-front bench with leather seating surfaces, power 6-way driver and front-passenger adjusters and leather-wrapped steering wheel (includes split-folding rear seatback on base model)

O

O

-

Sport cloth reclining bucket seats with power 6-way driver adjuster, manual driver lumbar adjuster and full floor console (includes split-folding rear seatback on base model)

O

S

-

Heated reclining bucket seats with leather seating surfaces, power 6-way driver and front passenger adjusters and full floor console

-

O

S

Power 6-way driver adjuster

O

S

S

Power 6-way passenger adjuster

O

O

S

Seatback - rear, split-folding with centre folding armrest

O

S

S

SOUND SYSTEMS

Impala

Impala LS

Impala SS

All Impala sound systems include an electronically tuned Delco AM/FM stereo with seek up/down, scan, auto tone control, speed-compensated volume control, Radio Data System (RDS), digital clock and TheftLock:

     

AM/FM stereo with CD player

S

S

S

AM/FM stereo with cassette tape player

O

-

-

AM/FM stereo with cassette tape and CD players (includes six-speaker premium sound system with 200-watt amplifier)

O

O

O

Six-speaker sound system

S

S

S

Six-speaker premium enhanced sound system with 200-watt amplifier

O

O

O

MECHANICAL

Impala

Impala LS

Impala SS

Battery - ACDelco with run-down protection

S

S

S

Brakes - power, 4-wheel disc

S

S

S

Brakes - 4-wheel anti-lock braking system (ABS), (includes full-function traction control and tire inflation monitoring system)

O

S

S

Drive - front-wheel

S

S

S

Engine - 3.4L 3400 V6 with SFI

S

-

-

Engine - 3.8L 3800 Series II V6 with SFI (includes 16" x 6.5" 5-spoke Sport aluminum wheels, P225/60R16 all-season touring tires and Touring suspension on base model)

O

S

-

Engine - 3.8L supercharged 3800 Series II V6 with SFI

-

-

S

Engine block heater

S

S

S

Exhaust system - stainless steel

S

S

S

Exhaust system - dual muffler, dual outlets with stainless steel finished tips

-

-

S

Steering - power, rack-and-pinion

S

S

S

Suspension - 4-wheel independent

S

S

S

Suspension - Touring (included with 3.8L 3800 Series II V6 engine)

O

S

-

Suspension - Handling

-

-

S

Transmission - 4-speed automatic with overdrive

S

S

S

SAFETY AND SECURITY

Impala

Impala LS

Impala SS

Air bags - dual-stage driver and front passenger, frontal

S

S

S

Air bag - driver-side, seat-mounted side-impact

O

O

O

Brake/transmission shift interlock feature

S

S

S

Door locks - automatic power, programmable with lock-out protection

S

S

S

Headlights - Daytime Running Lights with automatic light control

S

S

S

Keyless entry system - remote (includes Panic feature)

S

S

S

OnStar In-Vehicle Communications and Assistance Service - includes one-year Safe & Sound Plan

O

O

O

Safety restraints - LATCH (Lower Anchors and top Tethers for Children), rear seats

S

S

S

Theft-deterrent system - PASSLock

S

S

S

Traction control - electronic, full-function, all-speed; included with available anti-lock braking system (ABS)

O

S

S

Trunk - internal manual trunk entrapment release handle

S

S

S

S - Standard Equipment. O - Optional Equipment.


SPECIFICATIONS

Overview
Models: Chevrolet Impala Sedan, Impala LS, Impala SS
Body style / driveline: front-engine, front-drive, 5- / 6-passenger sedan
Construction: 2-sided galvanized steel (except roof)
EPA vehicle class: large car
Manufacturing location: Oshawa, Ontario, Canada
Key competitors: Ford Taurus, Dodge Intrepid, Honda Accord, Toyota Camry
 
Engines
3400 3.4L
V-6 (LA1)
3800 3.8L
Series II V-6
(L36) 3800
3.8L Supercharged
Series II V-6 (L67)
Application: sedan opt on sedan, std on LS SS
Type: 3.4L V-6 3.8L V-6 3.8L Supercharged V-6
Displacement (cu in / cc): 207 / 3350 231 / 3791 231 / 3791
Bore & stroke (in / mm): 3.62 x 3.31 / 92 x 84 3.80 x 3.40 / 96.5 x 86.4 3.80 x 3.40 / 96.5 x 86.4
Block material: cast iron cast iron cast iron
Cylinder head material: cast aluminum cast iron cast iron
Valvetrain: OHV, 2 valves
per cylinder
OHV, 2 valves
per cylinder
OHV, 2 valves
per cylinder
Ignition system: direct direct direct
Fuel delivery: sequential fuel injection sequential fuel injection sequential fuel injection
Compression ratio: 9.5:1 9.4:1 8.5:1
Horsepower
(hp / kw @ rpm):
180 / 134 @ 5200 200 / 149 @ 5200 240 / 179 @ 5200
Torque (lb-ft / Nm @ rpm): 205 / 278 @ 4000 225 / 305 @ 4000 280 / 380 @ 3600
Recommended fuel: 87 octane 87 octane 92 octane required
Maximum engine speed (rpm): 6000 6000 6000
Emissions controls: evaporative system with catalytic converter/EGR/PCV evaporative system with catalytic converter/EGR/PCV evaporative system with catalytic converter/EGR/PCV
Estimated fuel economy
(mpg city / hwy / combined):
21 / 32 / 27 20 / 30 / 26 TBD
 
Transmission
Type: Hydra-Matic 4T65-E, 4-speed automatic, front-wheel drive
Gear ratios (:1):  

First:

2.92

Second:

1.57

Third:

1.00

Fourth:

0.71

Reverse:

2.39
Final drive ratio: LA1: 2.86:1; L36: 3.05:1; L36 (police): 3.29:1; L67: 2.93:1
 
Chassis/Suspension
Front: independent MacPherson struts, variable rate coil springs, hollow 32-mm stabilizer bar (SS has hollow 34-mm stabilizer bar)
Rear: independent MacPherson struts, non-linear coil springs, solid 14-mm stabilizer bar (SS has dual rate coil springs, hollow 19.5-mm stabilizer bar)
Steering type: power rack-and-pinion for all models
Steering ratio: 3400 V-6: 15.2:1; 3800 V-6: 13.2:1
Steering wheel turns,
lock-to-lock:
3400 V-6: 2.74; 3800 V-6: 2.38; supercharged: 2.30
Turning circle,
curb-to-curb (ft / m):
3400 V-6, 3800 V-6: 38 / 11.6; supercharged: 39.6 / 12.1
 
Brakes
Type: power-assisted 4-wheel disc, standard ABS for LS and SS
Rotor diameter x thickness (in / mm): front: 11.93 x 1.26 / 303 x 32; rear: 10.9 x .43 / 278 x 11

Wheels/Tires Sedan LS SS
Wheel size and type: std: 16-inch, steel wheel w/ wheel cover
opt: 16-inch custom aluminum wheel
std: 16-inch, 5-spoke aluminum wheel std: 17-inch, diamond-cut aluminum

Tires:

std: P225/60R16 all-season blackwalls
opt: P225/60R16 touring
P225/60R16