
Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-8
Safety Belts
.............................................1-10
Child Restraints
.......................................1-31
Air Bag Systems
......................................1-64
Restraint System Check
............................1-81
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-7
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-18
Starting and Operating Your Vehicle
...........2-20
Mirrors
....................................................2-53
OnStar
žSystem
......................................2-62
Storage Areas
.........................................2-64
Vehicle Personalization
.............................2-66
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-20
Warning Lights, Gages and Indicators
.........3-33
Driver Information Center (DIC)
..................3-54
Audio System(s)
.......................................3-71
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-55Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under
the Hood
............................................... 5-8
All-Wheel Drive
........................................5-54
Rear Axle
...............................................5-55
Four-Wheel Drive
.....................................5-56
Noise Control System
...............................5-58
Bulb Replacement
....................................5-59
Windshield Wiper Blade Replacement
.........5-68
Tires
......................................................5-69
Appearance Care
...................................5-100
Vehicle Identi®cation
...............................5-108
Electrical System
....................................5-109
Capacities and Speci®cations
...................5-118
Normal Maintenance Replacement Parts
....5-121
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-8
Index................................................................ 1
2003 Chevrolet Silverado Owner ManualM

The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it's more
likely that the fetus won't be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
Right Front Passenger Position
To learn how to wear the right front passenger's safety
belt properly, seeDriver Position on page 1-16.
The right front passenger's safety belt works the same
way as the driver's safety beltÐexcept for one thing.
If you ever pull the shoulder portion of the belt out all the
way, you will engage the child restraint locking feature
which may turn off the passenger's frontal air bag. If this
happens unintentionally, just let the belt go back all
the way and start again.
Center Passenger Position
If your vehicle has front and rear bench seats, someone
can sit in the center positions.
When you sit in the center rear seat position of a crew
cab you have a lap-shoulder belt which is similar to
the rear outside seat positions. To learn how to wear this
belt see ªLap-Shoulder Beltº under
Rear Seat
Passengers on page 1-26.
1-24

5. Pull the rest of the shoulder belt all the way out of
the retractor to set the lock.6. To tighten the belt, feed the shoulder belt back into
the retractor while you push down on the child
restraint. If you're using a forward-facing child
restraint, you may ®nd it helpful to use your knee to
push down on the child restraint as you tighten
the belt. You should not be able to pull more of
the belt out of the retractor once the lock has
been set.
7. Push and pull the child restraint in different
directions to be sure it is secure.
1-57

5. Pull the rest of the shoulder belt all the way out of
the retractor to set the lock.6. To tighten the belt, feed the shoulder belt back into
the retractor while you push down on the child
restraint. If you are using a forward-facing child
restraint, you may ®nd it helpful to use your knee to
push down on the child restraint as you tighten
the belt. You should not be able to pull more of
the belt out of the retractor once the lock has
been set.
7. Push and pull the child restraint in different
directions to be sure it is secure.
1-62

Resynchronization
Resynchronization may be necessary due to the
security method used by this system. The transmitter
does not send the same signal twice to the receiver. The
receiver will not respond to a signal that has been
sent previously. This prevents anyone from recording
and playing back the signal from the transmitter.
To resynchronize your transmitter, stand close to your
vehicle and press and hold the LOCK and UNLOCK
buttons on the transmitter at the same time for 15
seconds. The door locks should cycle to con®rm
synchronization. If the locks do not cycle, see your
dealer for service.
Doors and Locks
Door Locks
{CAUTION:
Unlocked doors can be dangerous.
·Passengers Ð especially children Ð can
easily open the doors and fall out of a
moving vehicle. When a door is locked, the
handle will not open it. You increase the
chance of being thrown out of the vehicle
in a crash if the doors are not locked. So,
wear safety belts properly and lock the
doors whenever you drive.
·Young children who get into unlocked
vehicles may be unable to get out. A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave it.
·Outsiders can easily enter through an
unlocked door when you slow down or
stop your vehicle. Locking your doors can
help prevent this from happening.
2-7

Rear Doors
Your vehicle may be equipped with a rear access
door(s) that allows easier access to the rear area of the
extended cab.
To open a rear access
door from the outside, ®rst
open the front door.
Then, use the handle
located on the front edge
of the rear access door
to open it.
You must fully close a rear access door before you can
close the front door.To open a rear access
door from the inside, the
front door must be opened
®rst. Then, use the
handle located on the
inside of the rear access
door to open it.
If your vehicle is a Crew Cab
ž, you can open your
doors from the inside or outside. Your vehicle may also
have a feature which prevents children from opening
the rear doors. See
Rear Door Security Locks
(Crew Cab) on page 2-12for more information.
Tailgate
You can open the tailgate by lifting up on its handle
while pulling the tailgate toward you.
To shut the tailgate, ®rmly push it upward until it
latches.
After you put the tailgate back up, pull it back towards
you to be sure it latches securely.
2-13

Bulb Replacement (cont.)
Taillamps....................................................5-65
Buying New Tires...........................................5-74
C
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-6
Capacities and Speci®cations..........................5-118
Car Washes for QUADRASTEERŸ Equipped
Vehicles.....................................................4-18
Carbon Monoxide...................4-48, 4-68, 2-13, 2-51
Care of........................................................5-103
Safety Belts..............................................5-103
Your Cassette Tape Player..........................3-123
Your CD and DVD Player...........................3-124
Your CDs and DVDs..................................3-124
CARGO LAMP ON.........................................3-65
Cargo Lamp...................................................3-17
Cassette Tape Messages.................................3-94
Cassette Tape Player Service...........................6-12
CD Adapter Kits.............................................3-95
Center Console Storage Area...........................2-65
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp...............................................5-63
Center Instrument Panel Fuse Block................5-112
Center Passenger Position, Safety Belts.............1-24Chains, Tires..................................................5-78
CHANGE ENGINE OIL....................................3-66
Check Engine Light.........................................3-49
CHECK OIL LEVEL.........................................3-66
CHECK WASHER FLUID.................................3-66
Checking Brake Fluid......................................5-45
Checking Coolant............................................5-32
Checking Engine Oil........................................5-16
Checking Things Under the Hood....................... 5-8
Checking Your Restraint Systems......................1-81
Check...........................................................3-49
Engine Light...............................................3-49
Chemical Paint Spotting.................................5-106
Child Restraints..............................................1-38
Child Restraint Systems...............................1-38
Infants and Young Children...........................1-34
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-47
Older Children.............................................1-31
Securing a Child Restraint Designed for the
LATCH System........................................1-49
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-52
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-50
Securing a Child Restraint in the Center Front
Seat Position...........................................1-55
Securing a Child Restraint in the Right Front
Seat Position...................................1-55, 1-58
Top Strap Anchor Location............................1-44
3

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp High/Low Beam Changer.................... 3-9
Headlamps....................................................5-59
Bulb Replacement.......................................5-59
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-61
Halogen Bulbs............................................5-59
Pickup Box Identi®cation and Fender Marker
Lamps....................................................5-65
Roof Marker Lamps.....................................5-62
Headphones.................................................3-116
Heated Seats................................................... 1-5
Heating.........................................................3-30
Heavy-DutyTrailer Wiring Harness Package........4-90
Highway Hypnosis...........................................4-45
Hill and Mountain Roads..................................4-46
Hitches..........................................................4-85
Hood.............................................................. 5-8
Checking Things Under.................................. 5-8
Release....................................................... 5-9
Horn............................................................... 3-7
How to Add Coolant to the Coolant Surge Tank
Gasoline Engines........................................5-38
How to Add Fluid............................5-25, 5-28, 5-29
How to Check and Add Fluid............................5-30
How to Check Lubricant...................................5-55How to Check Power Steering Fluid..................5-43
How to Check........................5-23, 5-26, 5-28, 5-70
How to Inspect...............................................5-21
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-15
Hydraulic Clutch System Check........................6-14
Hydraulic Clutch.............................................5-29
Hydroplaning..................................................4-41
I
If No Steam Is Coming From Your Engine..........5-35
If Steam Is Coming From Your Engine...............5-34
If the Light is Flashing.....................................3-50
If the Light Is On Steady.................................3-50
If You Are Stuck in Sand, Mud, Ice or Snow.......4-52
If You Do Decide To Pull A Trailer.....................4-68
If You're Caught in a Blizzard...........................4-50
Ignition Positions.............................................2-20
Ignition Transmission Lock Check......................6-15
Infants and Young Children, Restraints...............1-34
In¯ation -- Tire Pressure..................................5-69
Inspection......................................................6-18
Brake System.............................................6-18
Engine Cooling System................................6-17
Exhaust System..........................................6-17
Fuel System...............................................6-17
Part C - Periodic Maintenance.......................6-17
8