light GMC SIERRA DENALI 2003 Owner's Guide

Exterior Lamps
The control on the driver’s side of the instrument panel
operates the exterior lamps.
Turn the control clockwise to operate the lamps.
The exterior lamp control has four positions:
0 (OFF): Turning the control to this position turns off
the Daytime Running Lamps (DRL), and the automatic
headlamps. An indicator light will illuminate when
this position is selected. AUTO
(Automatic): Turning the control to this position
puts the system into automatic headlamp mode.
An
indicator light will illuminate when this position is
selected.
:oO: (Parking Lamps): Turning the control to this
position turns on the parking lamps, together with the
following:
Sidemarker Lamps
Taillamps
License Plate Lamps
0 Instrument Panel Lights
Roof Marker Lamps (If Equipped)
$0 (Headlamps): Turning the control to this position
turns on the headlamps, together with the previously
listed lamps and lights.
You can switch your headlamps from high to low-beam
by pushing the turn signal/multifunction lever towards
the instrument panel.
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Automatic Headlamp System
When it is dark enough outside, your automatic
headlamp system will turn on your headlamps at the
normal brightness along with other lamps such as
the taillamps, sidemarker, parking lamps and the
instrument panel lights. The radio lights will also be dim.
Your vehicle is equipped with a headlamp off delay,
which will keep the headlamps on for a short time after
the ignition is turned
off. For more information see
DIC Operation and Displays on page 3-43.
Your vehicle has a light sensor located on the top of the
instrument panel in the defroster grille. Be sure it is
not covered, or the system will be on whenever
the ignition is on.
The system may also turn on your headlamps when
driving through a parking garage, heavy overcast
weather or a tunnel. This is normal.
There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running
Lamps (DRL) and the automatic headlamp systems
so
that driving under bridges or bright overhead street
lights does not affect the system. The DRL and
automatic headlamp system will only be affected when
the light sensor sees a change in lighting lasting
longer than the delay. one
minute for the automatic headlamp system to
change to DRL
if it is bright enough outside. During that
delay, your instrument panel cluster may not be as
bright as usual. Make sure your instrument panel
brightness control is in the full bright position. See
“Instrument Panel Brightness Control’’ under
Interior
Lamps on page
3-15.
To idle your vehicle with the automatic headlamp
system off, turn the control to the
off position.
You may be able to turn off your automatic headlamp
system. See Daytime Running Lamps (DRL) later in this
section for more information.
Your headlamps will also stay on after you exit the
vehicle. You can program this feature using the Driver
lnforrnation Center. See
Driver lnforrnation Center @IC)
on page
3-43
As with any vehicle, you should turn on the regular
headlamps
if you need them.
Lamps On Reminder
A reminder chime will sound when your headlamps or
parking lamps are manually turned on and your
ignition is off, in LOCK, ACCESSORY, or your door is
open. To disable the chime, turn the light
off, then
back on.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take approximately
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Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful
in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
first sold in Canada.
The DRL system will come on when the following
conditions are met:
The ignition is on,
0 the exterior lamp control is in AUTO
0 the automatic transmission is not in PARK (P), and
0 the light sensor determines it is daytime.
When the
DRL are on, only your DRL lamps will be on.
The taillamps, sidemarker and other lamps won’t be
on. The instrument panel won’t be lit up either. When
it begins to
get dark, the automatic headlamp
system will switch from DRL to the headlamps or the last
chosen headlamp setting that was used.
W-hen you turn the exterior iamp controi
to off, the
headlamps will go off, and your DRL lamps will
illuminate, provided it is not dark outside.
Shifting the transmission into PARK
(P) will allow you to
idle the vehicle with the DRL off. The DRL will stay
off until you release the parking brake or shift the
transmission out of PARK (P).
Puddle Lamps
Your vehicle is equipped with puddle lamps to help you
see the area near the base
of the front doors when it
is dark out. The puddle lamps will illuminate when a door
is opened or when you press the UNLOCK button on
the keyless entry transmitter.
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Fog Lamps
You can use your vehicle’s fog lamps for better vision in
foggy or misty conditions.
The fog lamp button is
located on the left side of
your instrument panel.
Your parking lamps and/or low-beam headlamps must
be on for your fog lamps to work.
Press the button to turn the fog lamps on while the
headlamps are on. Press the button again to turn them
off. An indicator light will glow in the button when
the fog lamps are on.
Remember, fog lamps alone will not give
off as much
light as your headlamps. Never use the fog lamps in the
dark without turning on the headlamps. The
fog lamps will go
off whenever the high-beam
headlamps come on. When the high beams go
off, the
fog lamps will come on again.
The fog lamps will be cancelled after the ignition is
turned
off. If you still want to use the fog lamps after you
restart the vehicle, press the fog lamp button again.
Cargo Lamp
The cargo lamp button is
located on the left side of
the instrument panel.
~ Press the button to turn
the cargo lamp on.
Press the button again to
turn it
off.
An indicator light on the instrument panel cluster will
illuminate when the cargo lamp is turned on, and
the ignition key is turned to RUN.
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Front Reading Lamps Interior Lamps
Instrument Panel Brightness Control
-g-: This feature controls the brightness of the
instrument panel lights.
The thumbwheel for this feature is located next
to the
exterior lamp control.
Turn the thumbwheel up to adjust the instrument panel
lights and return the radio display to full brightness
when the headlamps or parking lamps are on. To turn
on the dome lamps, with the vehicle doors closed,
turn the thumbwheel all the way up.
Exit Lighting
With exit lighting, the interior lamps will come on when
you remove the key from the ignition. The lamps
will not come on
if the dome override button is pressed
in.
Entry Lighting
Your vehicle is equipped with an illuminated entry
feature.
When a door is opened, the dome lamps and puddle
lamps will come on
if the dome override button is in the
out position. If the dome override button is pressed
in, the lamps will not come on. Your
vehicle has front reading lamps located in the
overhead console. Press the round button located next
to the lamp to turn the lamp on. The lamps can be
adjusted to point in the direction you want them to go.
Press the button again to turn the lamp
off.
3-1 5

Certain electrical accessories may not be compatible
with the accessory power outlets and could result
in blown vehicle or adapter fuses.
If you experience a
problem, see your dealer for additional information
on accessory power outlets.
Notice: Adding some electrical equipment to your
vehicle can damage
it or keep other things from
working
as they should. This wouldn’t be covered by
your warranty. Check with your dealer before
adding electrical equipment, and never use anything
that exceeds the amperage rating.
When adding electrical equipment, be sure to follow the
proper installation instructions included with the
equipment.
Notice: Power outlets are designed for accessory
plugs only. Do not hang any type of accessory
or accessory bracket from the plug. Improper use of
the power outlet can cause damage not covered by your warranty.
Ashtrays and Cigarette Lighter
The ashtray is located in the center console. Press the
raised area on the access door to use the ashtray.
To remove the ashtray first locate the indent on the right
side of the ashtray. Then, place an instrument, such
as a pen, in the indent and pry the ashtray out.
Notice: Don’t put papers or other flammable items
into your ashtrays. Hot cigarettes or other smoking
materials could ignite them, causing a damaging fire.
To use the cigarette lighter, push it in all the way, and
let go. When it’s ready, it will pop back out by itself.
Notice: Don’t hold a cigarette lighter
in with your
hand while
it is heating. If you do, it won’t be able to
back away from the heating element when
it’s
ready. That can make it overheat, damaging the
lighter and the heating element.
3-1 7

Display: In the full AUTO mode, the automatic dual
climate control system display will show the driver set
temperature and an arrow pointing to the driver’s side. An
arrow pointing to the passenger’s side will display
if both
sides are set to the same temperature.
If the temperature
settings are not the same, the opposite side temperature
setting will be displayed for an additional five seconds.
During the five second status display the current mode
and blower speed will be displayed.
Driver’s Side Temperature Knob: Turn this knob
clockwise or counterclockwise to manually raise or lower
the temperature on the driver’s side of the vehicle.
The display will show the temperature setting decreasing
or increasing and an arrow pointing to the driver. The
temperature can be adjusted even
if the system is
turned
off. If the passenger’s set temperature has not
been adjusted this knob controls both the driver’s
and passenger’s air temperature. The temperature to
the rear seat area is controlled by using this knob.
Passenger’s Side Temperature Knob: Turn this knob
clockwise or counterclockwise to manually raise or
lower the temperature on the passenger’s side of the
vehicle. The display will show the temperature
setting decreasing or increasing and an arrow pointing
to the passenger. The temperature can be adjusted
even
if the system is turned off. Once this knob is used,
the passenger’s temperature will remain independent
of the driver’s until the AUTO button is pressed and held
for approximately four seconds.
Automatic Operation
AUTO (Automatic): When automatic operation is
active the system will control the inside temperature, the
air delivery, and the fan speed.
Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the display will change to
show the current driver’s set temperature,
delivery mode and fan speed. Press the AUTO
button again within five seconds to display
the passenger’s set temperature.
If the driver and passenger’s temperature settings
are not the same, the opposite side temperature
setting will be displayed for an additional five
seconds. To make the passenger’s temperature the
same as the driver’s press and hold the AUTO
button for approximately four seconds.
When auto is selected, the air conditioning
operation and air inlet will be automatically
controlled. The air conditioning compressor will run
when the outside temperature is over approximately
40°F (4°C). The air inlet will normally be set to
outside air. If it’s hot outside, the air inlet may
automatically switch to recirculate inside air to help
quickly cool down your vehicle. The light on the
button will illuminate in recirculation.
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(ri (Floor): This mode directs most of the air to the
floor vents. Some air also comes out of the defroster and
side window vents. Use this mode to send air to the
rear of the vehicle. Keep the area under the front seats
free of objects that could obstruct airflow to the rear
of the vehicle. The recirculation button cannot be
selected in the floor mode.
(Recirculation): Press this button to turn the
recirculation mode on or
off. The recirculation mode is
used to limit the amount of outside air entering your
vehicle. This is helpful when you are trying to prevent
outside odors and/or dust from entering your vehicle, or
to help cool the air inside of your vehicle more quickly.
When this mode is on, inside air will recirculate
throughout your vehicle. When this button is pressed,
an indicator light in the button will also come on to
let you know that it is activated.
If you select recirculation while in defrost, defog, or
floor, the light on the button will flash and go out to let
you know this is not allowed. This is to prevent
windshield fogging.
If the weather is cold and damp, the system may cause
the windows to fog while using the recirculation
mode.
If the windows do start to fog, select defog or
front defrost mode
a NC (Air Conditioning): Press this button to
manually turn the air-conditioning system on or
off.
When the system is selected, or in AUTO mode
the system will automatically begin to cool and
dehumidify the air inside
of your vehicle.
If you select air conditioning off while in front defrost, or
defog mode the air conditioning
off symbol will flash
to let you know this is not allowed.
You may notice a slight change in engine performance
when the air-conditioning compressor shuts
off and
turns
on again. This is normal.
%k (Air Conditioning Off): When you turn the air
conditioning
off, this symbol will appear on the display.
When the air conditioning is selected or in AUTO
mode, the system will run the air conditioning
automatically.
3-2 1

Defogging and Defrosting
You can use either defog or front defrost to clear fog or
frost from your windshield. Use the defog mode to
clear the windows
of fog or moisture. Use the front
defrost button to defrost the front windshield.
@ (Defog): Use this setting to clear the windows of fog
or moisture. Press the mode button to select this
setting. This setting will deliver air to the floor and
windshield outlets.
@ (Front Defrost): Press the front defrost button to
defrost the windshield. The system will automatically
control the fan speed
if you select defrost from AUTO
mode.
If the outside temperature is 40°F (4°C) or warmer,
your air conditioning compressor will automatically run to
help dehumidify the air and dry the windshield.
Rear Window Defogger
The lines you see on the rear window warm the glass.
The rear window defogger uses a warming grid to
remove fog from the rear window.
(Rear): Press this button to turn the rear window
defogger on or
off. An indicator light in the button
will come on to let you know that the rear window
defogger is activated.
The rear window defogger will turn
off approximately
10 minutes after the button is pressed. If you need
additional warming time, press the button again.
If you vehicle is equipped with heated mirrors this button
will activate them.
Notice: Don’t use a razor blade or something else
sharp on the inside
of the rear window. If you
do, you could cut or damage the defogger and the
repairs
would not be covered by your warranty.
Do not attach a temporary vehicle license, tape, a
decal or anything similar to the defogger grid.
3-22

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