light GMC SIERRA DENALI 2003 Workshop Manual

Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection
if the Check
Engine light is on or not working properly.
Your vehicle will not pass this inspection
if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen
if
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving.
If you have done this and your vehicle
still does not pass the inspection for lack of
OBD
system readiness, see your dealer or qualified service
center to prepare the vehicle for inspection.
Oil Pressure Gage
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United States Canada
The oil pressure gage shows the engine oil pressure in
psi (pounds per square inch) when the engine is
running. Canadian vehicles indicate pressure in kPa
(kilopascals).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
3-40

A reading in the low pressure zone may be caused by a
dangerously low oil level or some other problem
causing
low oil pressure. Check your oil as soon as
possible. See
DIC Warnings and Messages on
page 3-53
and ‘vgine Oil on page 5-13.
Don’t keep driving if the oil pressure is low. If
you do, your engine can become
so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice: Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Cruise Control Light
The cruise light comes on
whenever you set your
cruise control. See “Cruise
Control” under
Turn
SignaVMultifunction Lever
on page 3-5.
Tow/HauI Mode Light
This light is displayed
when the tow/haul mode
has been activated.
For more information, see
Towing a Trailer on
page 4-5
I.
3-41

Fuel Gage
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United States Canada
When the ignition is on, the fuel gage tells you about
how much fuel you have left
in your tank.
The gage will first indicate empty before you are out of
fuel, and you should get more fuel as
soon as
possible. Here
are some situations you may experience with your
fuel gage. None of these indicate a problem with the
fuel gage.
At the gas station, the fuel pump shuts off before
the gage reads full.
It takes a little more or less fuel to fill up than the
fuel gage indicated. For example, the gage may
have indicated the tank was half full, but it actually
took
a little more or less than half the tank's
capacity to
fill the tank.
ignition.
The gage goes back to empty when you turn off the
Low Fuel Warning Light
The light next to the fuel gage will come on briefly when
you are starting the engine.
This light comes on when the fuel tank is low
on fuel.
To turn it
off, add fuel to the fuel tank. See Fuel on
page 5-5.
3-42

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.
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Seat Position Recall Perimeter Lighting
Press the personalization button until SEAT POSITION
RECALL appears on the display. To select your
personalization for seat position recall, press the select
button while SEAT POSITION RECALL is displayed
on the DIC. Pressing the select button will scroll through
the following choices:
SEAT POSITION RECALL
OFF (default): The memory
seat position you saved will only be recalled when the
memory button
1 or 2 is pressed on the driver’s
door panel.
SEAT POSITION RECALL AT KEY IN: The memory
seat position you saved will be recalled when you
put the key in the ignition.
SEAT POSITION RECALL ON REMOTE: The memory
seat position you saved will be recalled when you
unlock the vehicle with the remote keyless entry
transmitter.
Choose one of the three 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 seat position recall see
Memory Seat on
page 2-42.
Press the personalization button until PERIMETER
LIGHTING appears in the display. To select your
personalization for perimeter lighting, press the select
button while PERIMETER LIGHTING is displayed on the
DIC. Pressing the select button will scroll through the
following choices:
PERIMETER LIGHTING ON
(default): The headlamps
and back-up lamps will come on for
40 seconds, if it
is dark enough outside, when you unlock the vehicle
with the remote keyless entry transmitter.
PERIMETER LIGHTING
OFF: The perimeter lights will
not come on when you unlock the vehicle with the
remote keyless entry transmitter.
Choose on
of the two options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature.
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SERVICE AIRBAG
If there is a problem with the air bag system, this
message will be displayed on the
DIC. Have a qualified
technician inspect the system for problems. Pressing
the select button will acknowledge this message
and clear it from the
DIC display.
SERVICE BRAKE SYSTEM
If there is a problem with the brake system, this
message will be displayed on the
DIC. If this message
appears, stop as soon as possible and turn
off the
vehicle. Restart the vehicle and check for the message
on the
DIC display. If the message is still displayed,
or appears again when you begin driving, the brake
system needs service.
SERVICE BRAKE BOOSTER
If your vehicle has vaccum assist power brakes, this
message will be displayed on the
DIC when there is a
problem with the Supplemental Brake Assist system.
If the message is displayed immediately after starting
the vehicle or the message appears while driving,
your Supplemental Brake Assist system needs service.
See
Brake System Warning Light on page 3-34.
Your brake system may not be working
properly if the SERVICE BRAKE BOOSTER
message is displayed.
If the brake system warning light is also on,
you should have the vehicle towed for service. See “Brake System Warning Light”
in the
Index.
If the brake system warning light
isn’t on, you
still have brakes, but the supplemental brake
assist system may not operate properly.
In the
event of a vacuum
loss, you may not have
vacuum power assist for braking. The brake pedal will
be harder to push and it will take
longer to stop.
If you continue to drive with
this message displayed it can lead to a crash.
Have the brake system serviced as soon as
possible.
3-55

REDUCED BRAKE POWER
If your vehicle has vacuum assist power brakes, this
message will be displayed and you may notice that the
brake pedal is harder to push and it will take longer
to stop. You may also hear a motor running and feel a
slight vibration in the brake pedal or steering wheel
when you apply or release the brake pedal even
if your
foot is not on the brake pedal. This indicates that the
Supplemental Brake Assist system is working to
maintain braking power.
If you are braking lightly, you
may not notice any difference in the operation
of
your brakes.
This message may also be displayed for brief periods
if
you are driving at higher elevations and are pumping
your brakes or braking hard. The message may
clear after you’ve lifted your foot from the accelerator
pedal an allowed the vehicle to coast
in gear or after you
have driven down to a lower elevation. This is a
normal operation of your brake system and does not
require that the brake system be serviced. However,
if
the message does not clear, your brake system
needs service. While the message is displayed you will
notice that the brake pedal is harder to push and
it
will take longer to stop. See Brake System Warning
Light
on page 3-34.
Your brake system may not be working
properly if the REDUCED BRAKE POWER
message is displayed. If this message comes
on and stays on while driving, pull
off the road
and stop carefully. The brake pedal will be
harder to push and
it will take longer to stop.
If the message is no longer displayed after you
have pulled
off the road and stopped, you can
continue driving.
However, if the message is still displayed, or if
it comes on again when you are driving, there
is a problem with your brake system. If you
continue to drive with this message displayed
it can lead to an accident. You should have the
vehicle towed for service. Also, see Brake
System Warning Light in the Index.
3-57

PROG (Program): The front passengers must be
listening to something different for each of these
functions to work:
Press this button to go to the preset radio stations
When a cassette tape is playing, press this button
When a CD is playing in the radio, press this button
set
on the pushbuttons on the main radio.
to go to the other side
of the tape.
to go back to the beginning of the CD.
When a CD is playing in the CD changer, press this
button to select a disc.
CD Changer
The compact disc changer plays up to six standard size
CDs continuously. Individual CDs may be loaded or
ejected into or from any position.
A green light on each numbered button indicates a CD
is loaded in the respective position. An amber light
on a numbered button indicates that a CD is playing.
When loading
CDs, the loading slot indicators turn
amber to indicate that the player is ready to accept a
CD. CDs can be loaded or ejected with the radio or the
ignition being on or
off.
You must load CDs with the label side up. If you do not,
the player will automatically eject the CDs.
Notice: Loading CDs with adhesive labels will
damage the player.
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To load a CD, perform the following steps:
1. Press the LOAD button. Available positions will
blink amber.
2. Select a position by pressing the desired numbered
button with the amber blinking light. If a button is
not pressed within five seconds, the changer will go
to the lowest available position.
amber. An internal door will open allowing a single
CD to be inserted into the changer. After
approximately
10 seconds the changer will be ready
to play.
3. Load the CD when the loading slot indicators turn
To load two or more CDs, perform the
following steps:
1. Press and hold the LOAD button. The first CD will
be loaded into the lowest numbered empty position.
2. Load a single CD when the loading slot indicators
turn amber. After about
10 seconds the changer will
cycle to the next available position.
the desired positions. If you do not wish to load all
of the positions, you can cancel the load all
function by pressing a button with a green flashing
indicator light or wait
20 seconds for the changer
to time out.
3. Repeat Step 2 until all CDs are loaded into all of
To eject a single CD, perform the following
steps:
1. Press the eject button (upward pointing arrow). The
buttons with loaded CDs will blink amber.
2. Press one of the amber blinking buttons to select
the location of the CD you want to eject. The
changer will move to that location and eject the CD.
If you do not remove the CD from the player
within
10 seconds, it will be reloaded. If the eject
button is pressed and a numbered location button is
not pressed within five seconds, the current or last played CD will be ejected.
To eject all CDs, press and hold the eject button.
There are two ways to play a CD. Perform
one of the following:
With the radio on, press the desired numbered
button with a green indicator light on the CD
changer.
changer will go to its last played position.
Press the TAPE DISC button on the radio. The CD
9-79

Theft-Deterrent Feature
THEFTLOCK@ is designed to discourage theft of your
radio. The feature works automatically by learning
a portion of the Vehicle Identification Number (VIN).
If
the radio is moved to a different vehicle, it will not
operate and LOCKED will be displayed.
When the radio and vehicle are turned
off, the blinking
red light indicates that THEFTLOCK@ is armed.
With THEFTLOCK@ activated, your radio will not operate
if stolen.
Audio Steering Wheel Controls
You can control certain radio functions using the buttons
on your steering wheel.
((17 (OnStarNoice Recognition): If your vehicle has
Onstar@, you can press this button to interact with
the Onstar@ system. See the Onstar@ manual provided
with your vehicle for more information.
IF your vehicle does not have Onstar@, pressing this
button will mute the audio system.
PROG (Program): Press this button to play a station
you have programmed on the radio preset pushbuttons
on the selected band.
If a cassette tape is playing,
press this button to play the other side of the tape. If a
CD is playing, press this button to go to the next
available
CD.
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