2003 GMC SIERRA DENALI alarm

At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or
if you have to stand closer
to your vehicle for the transmitter to work, try this:
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 is
necessary. See “Battery Replacement” under
Remote Keyless Entry System Operation on
page
2-4.
qualified technician for service.
If you are still having trouble, see your dealer or a
Remote Keyless Entry System
Operation
You can lock and unlock your doors from about 3 feet
(1 m) up to 100 feet (30 m) away using the remote
keyless entry transmitter supplied with your vehicle. UNLOCK:
Pressing this button once will unlock the
driver’s door. The interior lamps will come on. Pressing
UNLOCK again within three seconds will cause the
remaining doors to unlock.
You can choose different feedback options for each
press of the UNLOCK button. See
DlC Operation and
Displays on page
3-43 for more information.
LOCK: Pressing this button once will lock all of the
doors. You can choose different feedback options
for each press of the LOCK button. See
DlC Operation
and Displays on page
3-43 for more information.
Operating the keyless entry transmitter may interact with
the theft-deterrent system. See
Content Theft-Deterrent
on page
2- 13 and DlC Operation and Displays on
page
3-43 for more information.
Remote Alarm
When the horn symbol on the keyless entry transmitter
is pressed, the horn will sound and the headlamps
and taillamps will flash for up to
30 seconds. This can
be turned off by pressing the horn button again, waiting
for
30 seconds, or starting the vehicle.
2-4

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 is equipped with a content theft-deterrent
alarm system.
With this system, the
security light on the cluster
will flash
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 flash.
If you are using the
remote keyless entry transmitter, the door does
not need to be open.
3. Close all of the doors. The light will stop flashing and
stay solid.The security light should go
off after
approximately
30 seconds. The alarm is not armed
until the security light goes
off. If the delayed locking
feature is active, the alarm will not activate until all
doors are closed and the security light goes
off.
Once the system is armed, if a door is opened without
the key or the remote keyless entry transmitter, the
alarm will go
off. Depending on how you have
programmed the alarm in the secondary information
center, the horn may sound, the headlamps may flash
or both the headlamps and the horn will activate.
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 after the 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.
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 message
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 and the headlamps do not
flash, you may have the feature turned
off. See DIC
Operation and Displays on page 3-43 for more
information.
Passlock@
Your vehicle is equipped with the
Passlock@ theft-deterrent system.
Passlock@ is a passive theft-deterrent system.
Passlock@ enables 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 flashes,
wait until the light stops flashing 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@ system is
not working properly and must be serviced by your
dealer. Your vehicle is not protected by Passlock@ at this
time. You may also want to check the fuse (see
Fuses and Circuit Breakers on page 5-95.) See your
dealer for service.
In an emergency, call the GM Roadside Assistance
Center. See
Roadside Assistance Program on page 7-5
under Customer Assistance Information.
2-1 4

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 briefly 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 lnformation Center (DIC) on page 3-43.
3-24

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.
ALARM WARNING TYPE
AUTOMATIC LOCKING
0 AUTOMATIC UNLOCKING
SEAT POSITION RECALL
PERIMETER LIGHTING
REMOTE LOCK FEEDBACK
REMOTE UNLOCK FEEDBACK
HEADLAMPS ON AT EXIT
CURB VIEW ASSIST
EASY EXIT SEAT
DISPLAY UNITS (E/M)
DISPLAY LANGUAGE 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 flash 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 flash
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- 13.
3-47

Payload ...................................................... 4-47
Personalization Button
..................................... 3-47
Pickup Conversion to Chassis Cab
.................... 4-50
Playing a Cassette Tape
.................................. 3-72
Playing a Compact Disc
................................... 3-74
Power
Playing
the Radio
........................................... 3-63
Accessory Outlets
........................................ 3-1 6
Electrical System
......................................... 5-95
Lumbar Controls
........................................... 1-3
Seat
............................................................ 1-2
Steering Fluid
............................................. 5-37
Windows
.................................................... 2-1 1
Power Steering ................................................ 4-9
Programming the HomeLink@ Transmitter
........... 2-35
Puddle Lamps
................................................ 3-13
Door Locks
.................................................. 2-7
Q
QUADRASTEERTM ......................................... 4-10
Questions and Answers About Safety Belts
......... 1-12 Radios (cont.)
CD Changer
............................................... 3-78
Rear Seat Audio
.......................................... 3-76
Theft-Deterrent
............................................ 3-81
Understanding Reception
.............................. 3-82
Rear Axle
...................................................... 5-50
Locking
........................................................ 4-8
Rear Doors
...................................................... 2-8
Rear Safety Belt Comfort Guides
...................... 1-27
Rear Seat Audio
............................................. 3-76
Rear Seat Audio Controls
................................. 3-77
Rear Seat Operation
......................................... 1-7
Rear Seat Outside Passenger Positions
............. 1-24
Rear Seat Passengers, Safety Belts
.................. 1-24
Rear Seat Top Strap Anchors
........................... 1-42
Rear Window Defogger
.................................... 3-22
DAB
Radio Antenna System
.......................... 3-84
Radio with Cassette and CD
......................... 3-62
Setting the Time
.......................................... 3-61
RDS and DAB Messages
................................. 3-68
Rearview Mirror, Automatic Dimming with
Onstar@, Compass and Temperature
Disdav
............................................. ...... 2-28 Id ..........................................
R
Reclining Seatbacks 1-4
Recreational Vehicle Towing
............................. 4-45
............................. Radio Messages 3-69
Radios 3-61 REDUCED BRAKE POWER
3-57
REDUCED ENGINE POWER 3-54 .............................................
........................... ..........................................................
Care of Your Cassette Tape Player ................ 3-83 Remote Alarm .................................................. 2-4
Care of Your CD Player
............................... 3-84 kxr~ote Keyless EntV System ............................ 2-3
Care of Your CDs
........................................ 3-84 Remote Keyless Entry System, Operation ............ 2-4
11

Taillamps ....................................................... 5-58
Temperature and Compass Display
.................... 2-28
Testing the Alarm
............................................ 2-14
Theft.Deterrent. Radio
..................................... 3-81
Theft-Deterrent Systems
................................... 2-1 3
Content Theft-Deterrent
................................ 2-1 3
Passlock@
................................................... 2-1 4
Tilt Wheel
........................................................ 3-4
Tire Inflation Check
......................................... 6-10
Tires
..................................................... 5.61. 5-90
Buying New Tires
........................................ 5-64
Chains
....................................................... 5-68
Changing a Flat Tire
.................................... 5-69
If a Tire Goes Flat ....................................... 5-68
Inflation
- Tire Pressure ............................... 5-62
Inspection and Rotation
................................ 5-62
Spare Tire
.................................................. 5-85
Uniform Tire Quality Grading
......................... 5-65
Wheel Alignment and Tire Balance
................. 5-67
Wheel Replacement
..................................... 5-67
When It
Is Time for New Tires ...................... 5-64
To Use the Engine Coolant Heater .................... 2-18
Tonneau Cover
............................................ 2-39
Top of the Instrument Panel
.......... ........ 5-87
Top Strap
...................................................... 1-40
Top Strap Anchor Location
............................... 1-41
Torque Lock
................................................... 2-25
Total Weight on Your Vehicle’s Tires
.................. 4-55 Tow/Haul
Mode
............................................... 2-21
Tow/Haul Mode Light
....................................... 3-41
Towing Recreational Vehicle
..................................... 4-45
Towing a Trailer
.......................................... 4-51
Your Vehicle
............................................... 4-45
TRACTION ACTIVE
.................................... 3-58
Trailer Recommendations
....................................... 4-50
Trailer Brakes
................................................. 4-56
Trailer Wiring Harness
..................................... 4-60
Transfer Case
................................................ 5-49
Transmission Fluid, Automatic
.......................... ......... 5-21
Temperature Gage
....................................... 3-36
TRANSMISSION HOT
..................................... 3-59
Transmission Operation, Automatic
.................... 2-18
Transmission, Transaxle, Transfer Case Unit Repair Manual
............................................ 7-10
Transportation Options
...................................... 7-7
Trip Information Button
....................... ..... 3-44
Trip Odometer
................................................ 3-26
Truck-Camper Loading Information
.................... 4-48
Turn and Lane Change Signals
.......................... 3-5
Turn SignaVMultifunction Lever ........................... 3-5
Turn Signals When Towing a Trailer
.................. 4-57
Two-Tiered Loading
......................................... 4-47
TURN
SIGNAL ON
......................................... 3-56
14