2003 CHEVROLET SILVERADO alarm

·Check the distance. You may be too far from your
vehicle. You may need to stand closer during
rainy or snowy weather.
·Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
·Check to determine if battery replacement or
resynchronization is necessary. See ªBattery
Replacementº and ªResynchronizationº under
ªRemote Keyless Entry System Operationº following
this section.
·If you are still having trouble, see your dealer or a
quali®ed technician for service.
Remote Keyless Entry System
Operation
If your vehicle has this feature, you can lock and unlock
your doors from about 3 feet (1 m) up to 30 feet (9 m)
away using the remote keyless entry transmitter supplied
with your vehicle.
UNLOCK:Pressing this button once will unlock the
driver's door. The parking lamps will ¯ash and the interior
lights will come on. The ground illumination lamps will
come on. Pressing UNLOCK again within three seconds
will cause the remaining doors to unlock. The parkinglamps will ¯ash and the interior lights will come on.
LOCK:Pressing this button once will lock all of the
doors. Wait one second, then press LOCK again and the
horn will chirp.
Operating the keyless entry transmitter may interact with
the theft-deterrent system. See
Content Theft-Deterrent
on page 2-18.
Remote Alarm
When the panic button with the horn symbol on the
keyless entry transmitter is pressed, the horn will sound
and the headlamps and taillamps will ¯ash for up to
30 seconds. This can be turned off by pressing the panic
button again, waiting for 30 seconds, or starting the
vehicle.
Matching Transmitter(s) to Your
Vehicle
Each remote keyless entry transmitter is coded to prevent
another transmitter from unlocking your vehicle. If a
transmitter is lost or stolen, a replacement can be
purchased through your dealer. Remember to bring any
remaining transmitters with you when you go to your
dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
2-5

Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make it
impossible to steal. However, there are ways you
can help.
Content Theft-Deterrent
Your vehicle may be equipped with a content
theft-deterrent alarm system.
With this system, the
security light will ¯ash as
you open the door (if your
ignition is off), to let you
know that you are
activating the system.
This message reminds you to activate the theft-deterrent
system. Here's how to do it:
1. Open the door.
2. Lock the door with the power door lock switch or the
remote keyless entry transmitter. The security light
should come on and ¯ash. If using the remote
keyless entry transmitter, the door does not need to
be open.If the delayed locking feature is active, the alarm
will not be activated until all doors are closed
and the security light goes off.
3. Close all doors. The security light will stop ¯ashing
and stay solid. The light should go off after
approximately 30 seconds. The alarm is not armed
until the security light goes off.
If a door is opened without the key or the remote
keyless entry transmitter, the alarm will go off. Your
vehicle's headlamps will ¯ash and the horn will sound for
about two minutes, then will turn off to save the
battery power.
Remember, the theft-deterrent system won't activate if
you lock the doors with a key or use the manual
door lock. It activates only if you use a power door lock
switch with the door open, or with the remote keyless
entry transmitter. You should also remember that
you can start your vehicle with the correct ignition key if
the alarm has been set off.
Here's how to avoid setting off the alarm by accident:
·If you don't want to activate the theft-deterrent
system, the vehicle should be locked with the door
key
afterthe doors are closed.
·Always unlock a door with a key, or use the remote
keyless entry transmitter. Unlocking a door any
other way will set off the alarm if the system
has been armed.
2-18

If you set off the alarm by accident, unlock any door
with the key. You can also turn off the alarm by pressing
UNLOCK on the remote keyless entry transmitter or
by placing the key in the ignition and turning it to
START.
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver's window
and open the driver's door.
2. Activate the system by locking the doors with the
power door lock switch while the door is open, or
with the remote keyless entry transmitter.
3. Get out of the vehicle, close the door and wait for
the security light to go out.
4. Then reach in through the window, unlock the door
with the manual door lock and open the door. This
should set off the alarm.
If the alarm does not sound when it should but the
vehicle's headlamps ¯ash, check to see if the horn
works. The horn fuse may be blown. To replace
the fuse, see
Fuses and Circuit Breakers on page 5-110.
If the alarm does not sound or the vehicle's headlamps
do not ¯ash, the vehicle should be serviced by an
authorized service center.
Passlockž
Your vehicle is equipped with the
Passlockžtheft-deterrent system.
Passlock
žis a passive theft-deterrent system.
Passlockženables fuel if the ignition lock cylinder is
turned with a valid key. If a correct key is not used or the
ignition lock cylinder is tampered with, fuel is disabled.
If the engine stalls and the security light ¯ashes,
wait until the light stops ¯ashing before trying to restart
the engine. Remember to release the key from
START as soon as the engine starts.
If the engine is running and the security light comes on,
you will be able to restart the engine if you turn the
engine off. However, your Passlock
žsystem is
not working properly and must be serviced by your
dealer. Your vehicle is not protected by Passlock
žat this
time. You may also want to check the fuse (see
Fuses and Circuit Breakers on page 5-110.) See your
dealer for service.
In an emergency, call the GM Roadside Assistance
Center. See
Roadside Assistance Program on page 7-5under Customer Assistance Information.
2-19

Warning Lights, Gages and
Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you locate
them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
your warning lights and gages could also save you
or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you will
see in the details on the next few pages, some
warning lights come on brie¯y when you start the
engine just to let you know they're working. If you are
familiar with this section, you should not be alarmed
when this happens.Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages
and warning lights work together to let you know when
there's a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages
shows there may be a problem, check the section that
tells you what to do about it. Please follow this
manual's advice. Waiting to do repairs can be
costly ± and even dangerous. So please get to know
your warning lights and gages. They're a big help.
Your vehicle also has a driver information system that
works along with the warning lights and gages. See
Driver Information Center (DIC) on page 3-54.
3-33

Instant Fuel Economy
Press the fuel information button until INST appears in
the display. Instant fuel economy is how many miles
per gallon your vehicle is at the particular moment
in time. The instant fuel economy cannot be reset.
GM Oil Life SystemŸ
Press the fuel information button until ENGINE OIL LIFE
appears in the display. The GM Oil Life SystemŸ
shows an estimate of the oil's remaining useful life. It
will show 100% when the system is reset after an
oil change. It will alert you to change your oil on a
schedule consistent with your driving conditions.
Always reset the engine oil life after and oil change. To
reset the Oil Life System press and hold the select
button while ENGINE OIL LIFE is displayed. OIL LIFE
RESET will appear on the display for 10 seconds
to let you know the system is reset.
The DIC does not replace the need to maintain your
vehicle as recommended in the Maintenance Schedule
in this manual. Also, the oil change reminder does
not measure how much oil you have in your engine. So,
be sure to check your oil level often. See
Engine Oil
on page 5-16.
Personalization Button
You can program certain features to a preferred setting
for up to two people. Press the personalization button to
scroll through the following personalization features. All of
the personalization options may not be available on your
vehicle. only the options available will be displayed on
your DIC.
If your vehicle is not equipped with the DIC steering
wheel buttons you will not have any of these
personalization options except for DISPLAY
LANGUAGE. See DISPLAY LANGUAGE later in this
section for more information.
·AUTOMATIC LOCKING
·AUTOMATIC UNLOCKING
·REMOTE LOCK FEEDBACK
·ALARM WARNING TYPE
·REMOTE UNLOCK FEEDBACK
·HEADLAMPS ON AT EXIT
·PERIMETER LIGHTING
·SEAT POSITION RECALL
·EASY EXIT DRIVER SEAT
3-58

·CURB VIEW ASSIST
·DISPLAY LANGUAGE
·DISPLAY UNITS (ENG/MET)
The default options for the above features were set
when your vehicle left the factory. The default options
are noted in the text following, but may have been
changed from their default state since then. The driver's
preferences are recalled by pressing the unlock
button on the remote keyless entry transmitter or by
pressing the appropriate memory button 1 or 2 located
on the driver's door.
Alarm Warning Type
Press the personalization button until ALARM
WARNING TYPE appears in the display. To select your
personalization for alarm warning type, press the
select button while ALARM WARNING TYPE is
displayed on the DIC. Pressing the select button will
scroll through the following choices:
ALARM WARNING: BOTH (default):The headlamps
will ¯ash and the horn will chirp when the alarm is
active.
ALARM WARNING: OFF:There will be no alarm
warning on activation.ALARM WARNING: HORN:The horn will chirp when
the alarm is active.
ALARM WARNING: LAMPS:The headlamps will ¯ash
when the alarm is active.
Choose one of the four options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature. For more
information on alarm warning type, see
Content
Theft-Deterrent on page 2-18.
Automatic Locking
Press the personalization button until AUTOMATIC
LOCKING appears in the display. To select your
personalization for automatic locking, press the select
button while AUTOMATIC LOCKING is displayed on the
DIC. Pressing the select button will scroll through the
following choices:
LOCK DOORS MANUALLY:The doors will not be
locked automatically.
LOCK DOORS WITH SPEED:The doors will lock
when the vehicle speed is above 8 mph (13 km/h) for
three seconds.
3-59

Rear Seat Top Strap Anchors (Extended Cab
Models)......................................................1-45
Rear Seat Top Strap Anchors
(Crew Cab Models)......................................1-46
Rear Window Defogger............................3-24, 3-31
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-56
Rearview Mirror, Automatic Dimming with
OnStar
ž, Compass and Temperature Display . . . 2-53
Rearview Mirrors.............................................2-53
Reclining Seatbacks.......................................... 1-5
Recreational Vehicle Towing.............................4-55
REDUCED ENGINE POWER...........................3-68
Regular Cab and Extended Cab Models.............1-71
Remote Alarm.................................................. 2-5
Remote Control.............................................3-114
Remote Keyless Entry System, Operation............ 2-5
Remote Keyless Entry System............................ 2-4
Removing the Flat Tire and Installing the
Spare Tire..................................................5-85
Removing the Spare Tire and Tools...................5-81
Replacement Bulbs.........................................5-67
Replacing Brake System Parts..........................5-47
Replacing Restraint System Parts After a Crash.....1-82
Reporting Safety Defects................................... 7-9
Canadian Government................................... 7-9
General Motors............................................. 7-9
United States Government.............................. 7-8
Restraint System Check...................................6-13
Checking Your Restraint Systems...................1-81Restraint System Check (cont.)
Replacing Restraint System Parts After a
Crash.....................................................1-82
Restraint Systems...........................................1-81
Checking....................................................1-81
Replacing Parts...........................................1-82
Resynchronization............................................. 2-7
Retained Accessory Power (RAP)......................2-22
Right Front Passenger Position, Safety Belts......1-24
Right Front Passenger Position Top Strap Anchor
(All Models)................................................1-44
RIGHT REAR DOOR AJAR (Crew Cab).............3-68
Roadside......................................................... 7-5
Assistance Program....................................... 7-5
Rocking Your Vehicle To Get It Out...................4-53
Running Your Engine While You Are Parked.......2-52
S
Safety Belt.....................................................3-36
Reminder Light............................................3-36
Safety Belts..................................................5-103
Care of....................................................5-103
Center Passenger Position............................1-24
Driver Position............................................1-16
How to Wear Safety Belts Properly................1-15
Questions and Answers About Safety Belts.....1-14
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-29
14

Six-Speed (VORTECŸ 8100 V8 and
DURAMAXŸ 6600 V8 Engines)...................2-31
Skidding........................................................4-21
Snow Plow....................................................4-61
Some Other Rainy Weather Tips.......................4-42
Spare Tire Check............................................6-13
Special Fabric Cleaning Problems....................5-101
Speci®cations, Capacities...............................5-118
Speedometer..................................................3-35
Stalling on an Incline.......................................4-35
Starter Switch Check.......................................6-14
Starting Your Engine.......................................2-22
Starting Your V8 Engine..................................2-23
Steering and Suspension Inspection..................6-17
Steering in Emergencies..................................4-14
Steering Tips..................................................4-13
Steering Wheel Controls, Audio.......................3-122
Steering........................................................4-13
Step-Bumper Pad...........................................4-97
Stereo RCA Jacks.........................................3-117
Storage Areas................................................2-64
Center Console Storage Area........................2-65
Cupholder(s)...............................................2-64
Front Storage Area......................................2-65
Glove Box..................................................2-64
Storing a Flat or Spare Tire, Jack
and Tools...................................................5-93Stuck in Sand, Mud, Ice or Snow......................4-52
Sun Visors.....................................................2-17
Supplemental Brake Assist System...................... 4-9
Swing-Out Windows........................................2-17
T
Tachometer....................................................3-35
Tailgate Removal............................................2-14
Tailgate.........................................................2-13
Taillamps (Chassis Cab Models)........................5-67
Taillamps.......................................................5-65
Temperature and Compass Display....................2-54
Temperature Display........................................2-56
Testing the Alarm............................................2-19
Theft-Deterrent, Radio....................................3-121
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
Passlock
ž...................................................2-19
Throttle System Inspection...............................6-18
TIGHTEN FUEL CAP......................................3-70
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-12
Tires.............................................................5-69
Buying New Tires........................................5-74
Chains.......................................................5-78
16