2003 CHEVROLET IMPALA roof

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-31
Air Bag Systems
......................................1-51
Restraint System Check
............................1-61
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-8
Windows
.................................................2-13
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-18
Mirrors
....................................................2-33
OnStar
žSystem
......................................2-37
HomeLinkžTransmitter
.............................2-39
Storage Areas
.........................................2-43
Sunroof
..................................................2-44
Vehicle Personalization
.............................2-45
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages and Indicators
.........3-28
Message Center
.......................................3-40
Driver Information Center (DIC)
..................3-49Trip Computer
.........................................3-52
Audio System(s)
.......................................3-53
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-31
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-55
Bulb Replacement
....................................5-56
Windshield Wiper Blade Replacement
.........5-60
Tires
......................................................5-61
Appearance Care
.....................................5-85
Vehicle Identi®cation
.................................5-93
Electrical System
......................................5-94
Capacities and Speci®cations
...................5-103
Normal Maintenance Replacement Parts
....5-105
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
CustomerAssistance Information...................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
...........................7-10
Index.................................................................1
2003 Chevrolet Impala Owner ManualM

Keys...............................................................2-2
Remote Keyless Entry System.........................2-3
Remote Keyless Entry System Operation...........2-4
Doors and Locks.............................................2-8
Door Locks....................................................2-8
Power Door Locks..........................................2-9
Programmable Automatic Door Locks................2-9
Lockout Protection........................................2-10
Leaving Your Vehicle....................................2-10
Trunk..........................................................2-10
Windows........................................................2-13
Power Windows............................................2-14
Sun Visors...................................................2-15
Theft-Deterrent Systems..................................2-16
Content Theft-Deterrent.................................2-16
Passlock
ž....................................................2-17
Starting and Operating Your Vehicle................2-18
New Vehicle Break-In....................................2-18
Ignition Positions..........................................2-18
Starting Your Engine.....................................2-19
Engine Coolant Heater..................................2-22
Automatic Transaxle Operation.......................2-23
Parking Brake..............................................2-27
Shifting Into Park (P).....................................2-27Shifting Out of Park (P).................................2-30
Parking Over Things That Burn.......................2-31
Engine Exhaust............................................2-31
Running Your Engine While You Are Parked. . . .2-32
Mirrors...........................................................2-33
Manual Rearview Mirror.................................2-33
Manual Rearview Mirror with OnStar
ž..............2-33
Automatic Dimming Rearview Mirror................2-34
Automatic Dimming Rearview Mirror with
OnStar
ž...................................................2-35
Outside Power Mirrors...................................2-36
Outside Convex Mirror...................................2-36
OnStar
žSystem.............................................2-37
HomeLinkžTransmitter...................................2-39
Programming the HomeLinkžTransmitter.........2-39
Storage Areas................................................2-43
Glove Box...................................................2-43
Front Storage Area.......................................2-43
Center Console Storage Area.........................2-43
Rear Storage Area........................................2-43
Convenience Net..........................................2-43
Sunroof.........................................................2-44
Vehicle Personalization...................................2-45
Section 2 Features and Controls
2-1

ACC (ACCESSORY):This is the position in which you
can operate your electrical accessories. With the key
in this position, the ignition and automatic transaxle
will unlock.
ON:This is the position to which the switch returns
after you start the engine and release the switch. The
switch stays in ON while the engine is running. But
even when the engine is not running, you can use ON
to operate your electrical accessories and to display
some instrument panel cluster messages and
warning lights.
START:This position starts the engine. When the
engine starts, release the key. The ignition switch will
return to ON for normal driving.
While the engine is not running, ACC and ON allow
you to operate your electrical accessories, such as
the radio.
A warning chime will sound if you open the driver's door
while the ignition is in OFF or ACC and the key is in
the ignition.Retained Accessory Power (RAP)
With Retained Accessory Power (RAP), your power
windows, audio system and sunroof (option) will
continue to work for up to 10 minutes after the ignition is
turned to OFF and none of the doors is opened.
Starting Your Engine
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine won't start in any other position Ð that's a
safety feature. To restart when you're already moving,
use NEUTRAL (N) only.
Notice:Don't try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transaxle. Shift to PARK (P) only when your
vehicle is stopped.
2-19

Sunroof
Your vehicle may have an express-open sunroof. It
includes a sliding and tilting glass panel and a
sunshade.
The switch is located on the overhead console if the
vehicle is equipped with a Driver Information Center
(DIC). If the vehicle is not equipped with a DIC,
the sunroof switch is located on the roof panel headliner.
To open the power
sunroof, press the switch
to the rear twice and
the sunroof will open.
The switch works only when the ignition is in ACC, ON
or when Retained Accessory Power (RAP) is active.Open/Express:To activate the express-open feature,
press the switch rearward. You can stop the sunroof
before it is completely open by pushing the switch
forward.
Vent:Your sunroof also has a vent feature. It can be
activated from the closed sunroof position by pressing
the switch once rearward. To close, push and hold
the sunroof switch forward. When using this feature, the
sunshade should be fully opened in the rear position.
The sunshade can be opened manually by sliding
it rearward, or automatically, by opening the power
sunroof. You will need to close the sunshade manually
by sliding it forward.
Close:To close the sunroof, push the switch forward
and hold until the sunroof motor stops, or release
the switch when the desired position has been reached.
DIC Version Shown
2-44

Delayed Exit Lighting
This feature illuminates the interior for a period of time
after the key is removed from the ignition.
The ignition must be off for delayed exit lighting to work.
When the key is removed, interior illumination will
activate and remain on until one of the following occurs:
·The ignition is moved to ON,
·the power door locks are activated, or
·an illumination period of 25 seconds has elapsed.
If during the illumination period a door is opened,
the timed illumination period will be canceled and the
interior lamps will remain on because a door is open.
Parade Dimming
The instrument panel has an added feature called
parade mode. This feature prohibits the dimming of your
instrument panel displays during the daylight while
the headlamps are on so that you'll still be able to see
the displays.
Reading Lamps
Your vehicle may be equipped with reading lamps that
are located on the assist handles in the headliner.
These lamps and the interior courtesy lamps come on
when any door is opened. Press the lens to turn
them on. Press it again to turn them off.
Dome Lamp
If your vehicle has this feature, the dome lamp will
come on when you open a door. You can also turn this
lamp on by turning the exterior lamps control clockwise
as far as it will go. Vehicles that have the optional
sunroof do not have a dome lamp.
Battery Rundown Protection
Your vehicle has a feature to help prevent you from
draining the battery in case you accidentally leave on the
interior courtesy lamps, reading/map lamps, visor
vanity lamps, trunk lamp or glove box lamps. If you leave
any of these lamps on, they will automatically turn off
after 10 minutes, if the ignition is moved to OFF.
The lamps won't come back on again until you do
the following:
·Turn the ignition on, or
·turn the exterior lamps control off, then on again.
If your vehicle has less than 15 miles (25 km) on
the odometer, the battery saver will turn off the lamps
after only three minutes.
Battery rundown protection will also work if the
headlamps are left on. After having been left on for
10 minutes, the headlamps and the parking lamps will
¯ash three times. They will remain on for one more
minute before being turned off automatically.
3-18

Driver Information Center (DIC)
If your vehicle is equipped with the DIC, it will show
information about the vehicle and the surroundings. It is
located in the headliner between the sun visors.RESET:You can reset the AVG ECON, FUEL USED
or AVG SPEED trip computer modes by pressing
and holding this button for three seconds while you are
in the mode you wish to reset. A chime will sound to
con®rm that your requested change has been made and
all the segments of the display will brie¯y light up.
To change the display to a metric or English reading,
press the RESET and MODE buttons at the same time.
Hold them down for three seconds, and the display
will change. A chime will be heard to con®rm the
new selection.
The reset button can also be used to manually calibrate
the compass. See ªManual Compass Calibrationº
later in this section.
The reset button can be used to set the compass
zone variation. See ªCompass Varianceº later in
this section. Optional Sunroof Version Shown
3-49

XMŸ Satellite Radio Antenna
System (United States Only)
Your XMŸ Satellite Radio antenna is located on the
roof of your vehicle. Keep this antenna clear of
snow and ice build up for clear radio reception.
The performance of your XM system may be affected if
your sunroof is open.
Vehicle Customization Settings
Your audio system can be used to control vehicle
customization settings using the DISP button when the
radio is off. See
Vehicle Personalization on page 2-45for more information.
Chime Level Adjustment
The radio is the vehicle chime producer. To change the
volume level, press and hold pushbutton 6 with the
ignition on and the radio power off. The chime volume
level will change from the normal level to loud, and
LOUD will be displayed on the radio. To change back to
the default or normal setting, press and hold
pushbutton 6 again. The chime level will change from
the loud level to normal, and NORMAL will be displayed.
Each time the chime volume is changed, three chimes
will sound as an example of the new volume selected.
Removing the radio and not replacing it with a
factory radio or chime module will disable vehicle
chimes.
3-94

Fuses Usage
PCM/BCM/
CLSTRPowertrain Control Module, Body
Control Module, Cluster (Ignition 0)
WSWWindshield Wipers, Windshield
Washer
PCM (CRANK) Powertrain Control Module (Crank)
CIG/AUX Accommodated Device (Accessory)
BCM Body Control Module (Accessory)
SRS Supplemental Restraint System
ABS/PCM Anti-Lock Brake System, Powertrain
Control Module, Brake Switch,
Crank Relay, Canister Vent Solenoid
(Run, Crank)
STOPBrake Lamps, Body Control Module
(Run, Crank)
TURN SIGNAL Turn Signal Flashers
CRUISECruise Control Steering Column
Controls
AC/CRUISEHVAC Temp Door Motors & Module,
Cruise Control Module
A/C FAN HVAC Blower
STR COL Steering Wheel LightingFuses Usage
DR LKBody Control Module, Door Lock
Controls
PWR MIR Power Mirrors
CLSTR/BCMCluster, Body Control Module, Data
Link Connector (Battery)
LH HTD
ST/BCMDriver's Heated Seat, Body Control
Module, Battery Controlled Loads
Circuit
BreakersUsage
RETAINED
ACCESSORY
PWR BRKRPower Window, Sunroof Breaker
Relays Usage
HEADLAMP
RELAYHeadlamp Relay
RETAINED
ACCESSORY
PWR RELAYRetained Accessory Power Relay
5-97