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Home / Buyer's Guide / Brochures / 2004 Impala / Standard & Optional Features

2004 Impala
Overview | Standard/Optional Equipment | Exterior Colors | Interior Colors/Styles | Available Wheels

  
LEGEND:   S = Standard.  O = Optional.  — = Not available.

 
EXTERIOR Sedan  LS  SS1 
       
Body panels: Two-sided galvanized-steel (except the roof)  S  S  S
Lamps: Automatic Exterior Lamp Control  S  S  S
Lamps: Composite halogen headlamps  S  S  S
Lamps: Daytime Running Lamps (DRLs)  S  S  S
Lamps: Foglamps  –  S  S
Mirrors: Dual outside rearview power remote  S  S  S
Mirrors: Dual outside rearview power remote, heated (included in the Mirror Group)  O2  O  O
Spoiler, rear decklid  O3  S S
Sunroof, power sliding  O  O O
Sedan Sport Appearance Group:
16-inch styled cast-aluminum wheels, Corvette-inspired body-color rear taillamp applique, rear decklid spoiler, Sport Cloth front bucket seats, cruise control, AM/FM stereo with CD player
 		 O   – –
LS Sport Appearance Package:
16-inch diamond-cut cast-aluminum wheels, Corvette-inspired body-color rear taillamp applique, bright stainless-steel exhaust tip, lower front fascia extension, embossed front license plate cover, graphite interior trim appointments, six-gauge instrumentation cluster, Impala-embroidered floor mats and front door side trim panel logo, instrument-panel badging, Sport front bucket seats with leather seating surfaces
 		 –  O –


1 Limited availability.
2 Requires Preferred Equipment Group 1SB.
3 Available only with optional Sedan Sport Appearance Group.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
INTERIOR   Sedan   LS  SS1 
       
Air bags, front2  S  S  S
Air bag, side-impact: driver-side2  O  O  O
Air filtration system  S  S  S
Air conditioning, driver and front-passenger dual-zone temperature controls  S  S  S
Assist grips (three), outboard passenger with courtesy lamps  O  S  S
Auto-dimming inside rearview mirror with dual reading lamps (included in optional Mirror Group)  O3  O  O
Automatic programmable power door locks for enhanced security with lockout protection  S  S  S
Auxiliary lighting (front footwell and trunk)  S  S  S
Boost gauge  –  –  S
Cargo net, luggage area  O  O  O
Cruise control  O  S  S
Dual front cup holders  S  S  S
Dual rear cup holders  O  S  S
Driver Information and Security Group (includes trip computer, outside temperature display, compass, HomeLink transmitter and theft-deterrent alarm)  O3,4  O  O
Delayed entry/exit lighting with theatre dimming  S  S  S
Floor mats, carpeted, front and rear  O  O  S
Illuminated visor vanity mirrors with extenders (LH and RH)  O3  S S
LATCH (Lower Anchors and Top tethers for CHildren): three top-tether anchors, three lower anchors  S  S  S
Leather-wrapped steering wheel  O5  S  S
OnStar6  O  O  O
PASSlock theft-deterrent system  S  S  S
Power trunk release  S  S  S
Power windows with driver’s Express-Down feature (includes power window lockout)  S  S  S
Rear window defogger, electric  S  S  S
Remote Keyless Entry  S  S  S
Steering wheel-mounted audio controls (includes leather-wrapped steering wheel)  O3  O  O
Tilt-Wheel steering column  S  S  S
Tinted glass with Solar-Ray  S  S  S
Sedan Sport Appearance Group:
16-inch styled cast-aluminum wheels, Corvette-inspired body-color rear taillamp applique, rear decklid spoiler, Sport Cloth front bucket seats, cruise control, AM/FM stereo with CD player		  O   – –
LS Sport Appearance Package:
16-inch diamond-cut cast-aluminum wheels, Corvette-inspired body-color rear taillamp applique, bright stainless-steel exhaust tip, lower front fascia extension, embossed front license plate cover, graphite interior trim appointments, six-gauge instrumentation cluster, Impala-embroidered floor mats and front door side trim panel logo, instrument-panel badging, Sport front bucket seats with leather seating surfaces		  –  O –

1 Limited availability.
2 Always use safety belts and proper child restraints, even with air bags. Children are safer when properly secured in a rear seat. See the Owner’s Manual for more safety information.
3 Requires Preferred Equipment Group 1SB.
4 Requires ABS.
5 Requires optional steering wheel-mounted audio controls.
6 OnStar services require vehicle electrical system and analog wireless service to be available and operating for features to function properly. OnStar uses existing emergency service providers as well as analog wireless and satellite technologies and is subject to their limitations. The U.S. Federal Communications Commission (FCC) ruled that wireless carriers will no longer be required to support the analog wireless network after February 16, 2008. After that time, if the carriers for OnStar elect to only provide digital service, OnStar service will only be available through dual-mode hardware, which may require the purchase of a system upgrade. Call 1-888-4ONSTAR (1-888-466-7827), see your OnStar Owner's Guide, or visit www.onstar.com for system limitations and details.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
SOUND SYSTEMS Sedan  LS  SS1 
       
Stereo: AM/FM with cassette player, Radio Data System (RDS) and six speakers  S  S S
Stereo: AM/FM with CD player, RDS, six-speaker premium sound system and 200-watt auxiliary amplifier  O  O  O
Stereo: AM/FM with CD and cassette players, RDS, six-speaker premium sound system and 200-watt auxiliary amplifier  O  O  O
XM Satellite Radio2  O  O  O

1 Limited availability.
2 Available only in the 48 contiguous states. Service fees extra. Visit gm.xmradio.com to learn more.
NOTE: Sound systems include an Electronically Tuned Receiver (ETR) with AM/FM stereo, TheftLock security feature, auto tone control, automatic volume, seek-scan, extended-range speakers, 12 FM and 6 AM station presets and a digital clock.

   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
ENGINE/CHASSIS  Sedan   LS   SS1 
   
Battery-rundown protection  S  S S
Brakes: power four-wheel disc  S  S S
Brakes: power four-wheel disc with ABS (includes Tire Inflation Monitor and electronic traction control)  O  S S
V6 engine: 3400 with SFI  S  – –
V6 engine: 3800 with SFI  O2  S –
V6 engine: supercharged 3800 with SFI  –  – S
Stainless-steel exhaust system  S  S S
Power rack-and-pinion steering  S  S S
Suspension: Touring  S  – –
Suspension: Sport Touring  O3  S –
Suspension: Performance  –  – S
Electronic Traction Control  O4  S S
Four-speed electronically controlled automatic transmission with overdrive  S  S  –
Four-speed heavy-duty electronically controlled automatic transmission with overdrive   –   – S
100,000-mile spark plugs5  S  S S
Lubed-for-life chassis5  S  S S
Oil life monitor  S  S S

1 Limited availability.
2 Requires P225/60R-16 Touring tires, styled cast-aluminum wheels and PEG 1SC. Includes four-wheel disc ABS, Electronic Traction Control, Tire Inflation Monitor and Sport Touring suspension.
3 Requires 3800 V6.
4 Requires ABS.
5 Maintenance needs vary with different uses and driving conditions. See the Owner's Manual for more information.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
IIMPALA TRAILERING DATA
NOTE: Additional equipment required. See your dealer for further trailering information.
Trailer classification

Light

Gross trailer weight, up to (lbs./kg)

1000/454

Maximum tongue weight (lbs./kg)

100/46

 
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
SEATING Sedan  LS  SS1 
       
Cloth 60/40 split-bench front seat with adjuster and manual recliner, plus fixed-back rear seat  S  –  –
Six-way power driver seat (includes manual lumbar adjuster)  O  S S
Power seat, front passenger  O2  O2  O2
Sport cloth front buckets with center console storage armrest, 6-way power driver seat, driver-side manual lumbar adjuster, driver and front-passenger manual recline seatbacks, and split-folding rear seat with armrest and cup holders  O  S –
Sport Cloth 60/40 split-bench front seat, 6-way power driver seat, driver-side manual lumbar adjuster, driver and front-passenger manual recline seatbacks, and split-folding rear seat with armrest and cup holders  O  –  –
Leather seating surfaces 60/40 split-bench front seat, 6-way power driver seat, driver-side manual lumbar adjuster, driver and front-passenger manual recline seatbacks, and split-folding rear seat with armrest and cup holders  O3  O –
Leather seating surfaces front buckets with center console storage armrest, 6-way power driver seat, driver-side manual lumbar adjuster, driver and front-passenger manual recline seatbacks, and split-folding rear seat with armrest and cup holders –  O S
Seat Comfort Package: includes six-way power passenger seat and driver and front-passenger heated seats  O4  O4 O

 

1 Limited availability.
2 Included and only available with optional Seat Comfort Package.
3 Requires PEG 1SC.
4 Requires leather seating surfaces.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
WHEELS/TIRES Sedan  LS  SS1 
       
Wheels:      
16-inch bolt-on full wheel covers  S  – –
16-inch styled cast-aluminum wheels  O2  – –
16-inch 5-spoke sport cast-aluminum wheels  –  S –
16-inch diamond-cut cast-aluminum wheels    O3 –
17-inch diamond-cut cast-aluminum wheels  –  – S
       
Tires:      
P225/60R-16 all-season  S  – –
P225/60R-16 Touring  O4  S –
P235/55R-17 Performance – –  S


1 Limited availability.
2 Included with optional Sedan Sport Appearance Group.
3 Requires optional LS Sport Appearance Package.
4 Requires 3800 V6 engine.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
PREFERRED EQUIPMENT GROUPS (PEGS)
 
Sedan  1SB   1SC 
     
Cruise control  •   •
Assist handles (three), outboard passenger with courtesy lamps  •  •
Illuminated visor mirrors (LH and RH) with extenders  •  •
Carpeted front and rear floor mats  •  •
Luggage area cargo net  •  •
AM/FM stereo with CD player, RDS and six-speaker premium sound system with a 200-watt auxiliary amplifier  •  •
16-inch styled cast-aluminum wheels  –  •
Mirror Group: includes heated outside rearview power mirrors and auto-dimming inside rearview mirror with dual reading lamps  –  •
Audio controls: steering wheel-mounted (includes leather-wrapped steering wheel)  –  •
Six-way power driver seat (includes driver manual lumbar adjuster)  –  •
Front Sport Cloth 60/40 split-bench with driver and front passenger manual recline, front passenger seatback storage, front center armrest with storage and 60/40 split-folding rear seat with center armrest and cup holders  –  •

 

LS  1SB   1SC 
     
Carpeted front and rear floor mats  •   •
Luggage area cargo net  •  •
AM/FM stereo with CD player, RDS and six-speaker premium sound system with 200-watt auxiliary amplifier  •  •
Mirror Group: includes heated outside rearview power mirrors and auto-dimming inside rearview mirror with dual reading lamps  •  •
Audio controls: steering wheel-mounted (includes leather-wrapped steering wheel)   •  •
Driver Information and Security Group (includes trip computer, outside temperature display, compass, HomeLink transmitter and theft-deterrent alarm system)    •
OnStar: includes one-year Safe & Sound Plan1    •

 

SS2   1SB   1SC 
     
AM/FM stereo with CD player, RDS and six-speaker premium sound system with 200-watt auxiliary amplifier  •  •
Luggage area cargo net   •  •
Mirror Group: includes heated outside rearview power mirrors and auto-dimming inside rearview mirror with dual reading lamps  •  •
Audio controls: steering-wheel-mounted (includes leather-wrapped steering wheel)   •  •
Driver Information and Security Group (includes trip computer, outside temperature display, compass, HomeLink transmitter and theft-deterrent alarm system)    •
OnStar: includes one-year Safe & Sound Plan1    •


1 OnStar services require vehicle electrical system and analog wireless service to be available and operating for features to function properly. OnStar uses existing emergency service providers as well as analog wireless and satellite technologies and is subject to their limitations. The U.S. Federal Communications Commission (FCC) ruled that wireless carriers will no longer be required to support the analog wireless network after February 16, 2008. After that time, if the carriers for OnStar elect to only provide digital service, OnStar service will only be available through dual-mode hardware, which may require the purchase of a system upgrade. Call 1-888-4ONSTAR (1-888-466-7827), see your OnStar Owner’s Guide, or visit www.onstar.com for system limitations and details.
2 Limited availability.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
FUEL ECONOMY
 
 

EPA Estimated MPG City/Highway

3400 V6 (Sedan)

21/32  

3800 V6 (LS)

20/30

Supercharged 3800 V6 (SS)

18/28

   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
CAPACITIES
   
Seating

6 passengers with split-bench front seat; 5 with front buckets

Fuel tank capacity, approx. (gal./liters)

17/64.4
Curb weights, estimated (lbs./kg)  

- Impala Sedan

3465 / 1572

- Impala LS

3476 / 1577
- Impala SS1  3606 / 1636

1 Limited availability.
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
SPECIFICATIONS
 
TRANSMISSION SPECIFICATIONS
Type 4-speed electronic automatic
RPO

(4T65-E)

all: MXO - 4-speed auto
Sedan, LS: MXO/M15
SS (heavy duty): MXO/MN7
Gear ratios

 
First gear

2.92

Second gear

1.57

Third gear

1.00

Fourth gear

0.71

Reverse

2.39

Final drive ratios

3400 V6 = 2.86:1
3800 V6 = 3.05:1
3800 Supercharged V6 = 2.93:1
Case material aluminum

 

STEERING SPECIFICATIONS

Ratio (overall)

 

– 3400 V6 engine

15.2:1

– 3800 V6 engine

13.3:1

– Supercharged 3800 V6 engine

13.3:1

Turns stop-to-stop

2.3

Turning diameter curb-to-curb (ft./m)

39.6 / 12.1

 

BRAKE SPECIFICATIONS

Front Brakes

U.S. Standard

Metric

Rotor size
(dia. x thick.)

11.93 x 1.26 in.

303 x 32mm

Total swept area

303.0 sq. in.

1955.0 sq. cm

     

Rear Brakes

U.S. Standard Metric

Rotor size
(dia. x thick.)

10.94 x .43 in.

278 x 11mm

Total swept area

276.0 sq. in.

1781.0 sq. cm

 

ENGINE SPECIFICATIONS
Type

3400 V6 SFI

3800 V6 SFI

Supercharged 3800 V6 SFI
RPO

LA1

L36

L67
Displacement (cu. in./liters)

207 / 3350

231 / 3791

 231/ 3791
Bore & stroke (in.)

3.62 x 3.31

3.80 x 3.40

3.80 x 3.40
Bore & stroke (mm)

92.0 x 84.0

96.5 x 86.4

96.5 x 86.4
Compression ratio

9.5:1

9.4:1

8.5:1
Block material

cast-iron

cast-iron

cast-iron
Cylinder head material

cast-aluminum

cast-iron

cast-iron
Valves per cylinder

2

2

2
Induction

SFI

SFI

SFI
Ignition system

direct

direct

direct
Hydraulic lifters

hydraulic roller

hydraulic roller

hydraulic roller
Cam drive

chain

chain

chain
Alternator rating (amps)

105

105

105
Battery (SAE rating, cca)

600

690

690
Recommended unleaded fuel

87 octane

87 octane

92 octane
Redline (RPM)

6000

6000

6000
Horsepower/kW @ engine RPM

180/134 @ 5200

200/149 @ 5200

240/179 @ 5200
Torque (lb.-ft./N-m) @ RPM

205/278 @ 4000

225/305 @ 4000

280/380 @ 3600
   
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LEGEND:   S = Standard.  O = Optional.  — = Not available.
   
DIMENSIONS  

NOTE: All dimensions shown are inches/millimeters unless otherwise noted.

Exterior
Wheelbase

110.5/2807

Length

200.0/5080

Width

73.0/1854

Height

57.3/1456

Tread width – front

62.0/1574

Tread width – rear

61.1/1551

Interior
Headroom – front

39.2/996

Headroom – rear

36.8/935

Legroom – front

42.2/1072

Legroom – rear

38.4/975

Shoulder room – front

59.0/1499

Shoulder room – rear

58.9/1496

Hip room – front

56.5/1435

Hip room – rear

55.7/1415

Passenger volume (cu. ft./liters) 104.5/2959.1
Cargo volume (cu. ft./liters)1 18.6/526.7
Interior volume, index (cu. ft./liters) 123.1/3485.5
1 Cargo and load capacity limited by weight and distribution.

 
   
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