fog light GMC SIERRA CLASSIC 2007 Owners Manual

Page 131 of 674

Swing-Out Windows
Your vehicle may have
swing-out windows. To
open a rear swing-out
window, ip the
latch open and swing
the glass out.
The latch will catch when the window is fully open
and it will also hold it in the open position.
Sliding Rear Window
If your vehicle has this feature, squeeze the latch
in the center of the window and slide the glass
to open it.
When you close the window, be sure the latch is
engaged.
The sliding rear window does not have rear
defogger.
Sun Visors
Pull the sun visor down to block glare. Swing the
sun visor to the side to cover the side window.
The passenger’s side sun visor may have a vanity
mirror.
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.
Content Theft-Deterrent
Your vehicle may have a content theft-deterrent
alarm system.
The security light,
located on the
instrument panel cluster,
will ash as you open
the door, while the
ignition is off, to indicate
the system is being
activated.
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Instrument Panel Overview........................ 210
Hazard Warning Flashers.......................... 212
Other Warning Devices............................. 213
Horn.......................................................... 213
Tilt Wheel.................................................. 213
Turn Signal/Multifunction Lever.................. 214
Turn and Lane-Change Signals................. 214
Headlamp High/Low-Beam Changer.......... 215
Flash-to-Pass............................................ 216
Windshield Wipers..................................... 216
Windshield Washer.................................... 217
Cruise Control........................................... 217
Headlamps................................................ 221
Headlamps on Reminder........................... 222
Daytime Running Lamps (DRL)................. 222
Automatic Headlamp System..................... 223
Fog Lamps................................................ 225
Auxiliary Roof Mounted Lamp.................... 226
Instrument Panel Brightness...................... 226
Dome Lamps............................................. 226
Dome Lamp Override................................ 227
Entry Lighting............................................ 227
Exit Lighting.............................................. 227Front Reading Lamps................................ 227
Cargo Lamp.............................................. 228
Accessory Power Outlet(s)........................ 228
Ashtray(s) and Cigarette Lighter................ 229
Climate Controls......................................... 230
Climate Control System............................. 230
Dual Climate Control System..................... 231
Dual Automatic Climate Control System.... 235
Outlet Adjustment...................................... 243
Warning Lights, Gages, and Indicators..... 244
Instrument Panel Cluster........................... 245
Speedometer and Odometer...................... 246
Trip Odometer........................................... 246
Tachometer............................................... 246
Safety Belt Reminder Light........................ 247
Airbag Readiness Light............................. 247
Airbag Off Light......................................... 248
Passenger Airbag Status Indicator............. 250
Battery Warning Light................................ 253
Voltmeter Gage......................................... 253
Up-Shift Light (Manual Transmission)........ 254
Brake System Warning Light..................... 254
Section 3 Instrument Panel
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Page 225 of 674

Fog Lamps
If your vehicle has fog lamps, use them for better
vision in foggy or misty conditions.
The fog lamp button is
located on the left side
of the instrument
panel.
The parking lamps and/or low-beam headlamps
must be on for the fog lamps to work.
Press the button to turn the fog lamps on or 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 the 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, you will need to press
the fog lamp button again.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
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Page 232 of 674

Mode Control
To change the current mode, select one of the
following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs half of the air to
the instrument panel outlets; then directs most
of the remaining air to the oor outlets. A little air
is directed toward the windshield and the side
window outlets. Cooler air is directed to the upper
outlets and warmer air to the oor outlets.
6(Floor):This mode directs most of the air to
the oor outlets with a little air directed to the
windshield and the side window outlets.
h(Recirculation):The recirculation mode is
used to recirculate the air inside of your vehicle.
Use this mode to help prevent outside odors
and/or dust from entering your vehicle or to help
cool the air inside of your vehicle more quickly.
Press this button to turn the recirculation mode on
or off. The light on the recirculation button will
illuminate. Recirculation cannot be used in oor,
defog or defrost modes. An indicator on the button
will light up, ash three times and turn off when
recirculation is selected in these modes. The
air-conditioning compressor will also come on when
this mode is activated. While in recirculation mode
the windows may fog when the weather is cold and
damp. To clear the fog, select either the defog or
defrost mode and increase fan speed.
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Page 233 of 674

Temperature Control
Driver’s Side:The lever on the left side of the
climate control panel is used to raise or lower the
temperature on the driver’s side of the vehicle.
This lever also adjusts the temperature to
the center console outlets, if the vehicle has them.
Passenger’s Side:The lever on the right side
of the climate control panel is used to raise
or lower the temperature on the passenger’s side
of the vehicle.
#(Air Conditioning):Press this button to turn
the air-conditioning system on or off. When
the button is pressed, an indicator light will come
on and the system will begin to cool and
dehumidify the air inside of your vehicle. You may
notice a slight change in engine performance
when the air conditioning compressor shuts off and
turns on again. This is normal.
Defogging and Defrosting
Fog on the inside of the windows is a result of
high humidity (moisture) condensing on the
cool window glass. This can be minimized if the
climate control system is used properly. There are
two modes to choose from to clear fog or frost
from your windshield. Use the defog mode to clear
the windows of fog or moisture and warm the
passengers. Use the defrost mode to remove fog
or frost from the windshield more quickly.
Turn the right knob to select one of the following
modes:
-(Defog):This mode directs the air to the oor
outlets, windshield and the side window outlets.
The air conditioning compressor will run
automatically to dehumidify the air to prevent
window fogging. The recirculation mode cannot be
selected while in the defog mode.
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Page 234 of 674

1(Defrost):This mode directs most of the air to
the windshield and the side window outlets, with
only a little air directed to the oor outlets. The air
conditioning compressor will run automatically
to dehumidify the air to prevent window fogging.
The recirculation mode cannot be selected while in
defrost mode.
Do not drive the vehicle until all the windows are
clear.
Rear Window Defogger
If your vehicle has this feature, the rear window
defogger uses a warming grid to remove fog from
the rear window.
If your vehicle has a sliding rear window, you will
not have a rear window defogger.
<(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. This button will
also activate the heated mirrors, if the vehicle
has them.The rear window defogger will automatically turn
off several minutes after the button is pressed.
Pressing the button while the defogger is running
can also turn off the defogger.
W(Mirror):If your vehicle does not have a rear
defogger and has heated mirrors, your vehicle
will have this button to activate the heated mirrors.
Notice:Do not use anything sharp on the
inside of the rear window. If you do, you could
cut or damage the warming grid, 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.
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Page 238 of 674

Manual Operation
You may manually adjust the air delivery mode or
fan speed.
w9x(Fan):The switch with the fan symbol
allows you to manually adjust the fan speed. Press
the up arrow to increase fan speed and the
down arrow to decrease fan speed.
Pressing this button when the system is off will
turn the system on.
C(Mode):Press this button to manually change
the direction of the airow in your vehicle;
repeatedly press the button until the desired mode
appears on the display.
If you press the mode button to select an air
delivery mode, the display will change to show you
the selected air mode delivery. The display will then
show the current status of the system. When the
system is turned off, the display will go blank after
displaying the current status of the system.
H(Panel):This mode directs air to the
instrument panel outlets.
)(Bi-Level):This mode directs warmer air to
the oor and cooler air to the instrument panel
outlets.
6(Floor):This mode directs air to the oor
outlets.
-(Defog):See “Defogging and Defrosting” later
in this section.
@(Recirculation):Press this button to limit the
amount of outside air entering your vehicle.
The light on the recirculation button will glow. This
is helpful when you are trying to limit odors
entering your vehicle and for maximum air
conditioning performance in hot weather. Press
this button again to allow outside air to enter
the vehicle. The light on the recirculation button
will go off.
Pressing this button also cancels the auto
recirculation feature. To resume the auto
recirculation function, press the AUTO button.
Each time the vehicle is started, the system will
revert to the auto recirculation function.
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Page 239 of 674

If you select recirculation while in defrost, defog,
or oor, the light in the button will ash and then go
out to let you know that this is not allowed. This
is normal and helps to prevent fogging.
When the weather is cool or damp, operating the
system in recirculation for extended periods of
time may cause fogging of the vehicle’s windows.
To clear the fog, select either defog or front
defrost.
You may also notice that the air condition
compressor will run while in recirculation mode.
This is normal and helps to prevent fogging.
9(Off):Press this button to turn off the entire
climate control system. Outside air will still
enter the vehicle, and will be directed to the oor.
This direction can be changed by pressing the
mode button. The temperature can also be
adjusted using either temperature knob. Press the
up or down arrows on the fan switch, the defrost
button, the AUTO button, or the air conditioning
button to turn the system on when it is off.
Display
If you press the mode button to select an air
delivery mode, the display will change to show you
the selected air delivery mode. After ten seconds,
the display will change to show the driver
temperature setting and the selected mode.
If you press the up or down arrows on the fan
switch, the display will change to show the
selected fan speed. After ten seconds, the display
will change to show the driver temperature
setting and the selected mode.
Whenever you press AUTO, the display will
change to show the following:
The current driver’s set temperature and an
arrow for ve seconds
The current passenger’s set temperature
setting and an arrow for ve seconds
The automatic air delivery mode and fan speed
If the driver’s and passenger’s temperature
settings are the same when AUTO is pressed,
the temperature setting and both arrows will be
displayed for ve seconds along with the automatic
air delivery mode and fan speed. After the
ve second update, the display will change to show
the temperature setting, both arrows, and AUTO.
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Page 243 of 674

Rear Window Defogger
If your vehicle has this feature, the rear window
defogger uses a warming grid to remove fog from
the rear window.
If your vehicle has a sliding rear window, you will
not have a rear window defogger.
<(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. This button will also
activate the heated mirrors, if the vehicle has them.
The rear window defogger will automatically turn
off several minutes after the button is pressed.
Pressing the button while the defogger is running
can also turn off the defogger.
W(Mirror):If your vehicle does not have a rear
defogger and has heated mirrors, your vehicle
will have this button to activate them.
Notice:Do not use a razor blade or sharp
object to clear the inside rear window. Do not
adhere anything to the defogger grid lines
in the rear glass. These actions may damage
the rear defogger. Repairs would not be
covered by your warranty.
Outlet Adjustment
Use the air outlets located in the center and on the
side of your instrument panel to direct the airow.
Operation Tips

Keep the hood and front air inlets free of ice,
snow, or any other obstruction (such as
leaves). The heater and defroster will work
better, reducing the chance of fogging
the inside of your windows.
When you enter a vehicle in cold weather, set
the fan speed to maximum airow for a few
moments before driving. This helps clear
the intake ducts of snow and moisture, and
reduces the chance of fogging the inside
of your window.
Keep the air path under the front seats clear
of objects. This helps air to circulate
throughout your vehicle.
Adding outside equipment to the front of your
vehicle, such as hood-air deectors, may
affect the performance of the heating and air
conditioning system. Check with your
dealer before adding equipment to the outside
of your vehicle.
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Page 607 of 674

Fuses Usage
DRL Daytime Running Lamps
RVC Regulated Voltage Control
IPC/DICInstrument Panel
Cluster/Driver Information
Center
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMPAir Conditioning Compressor
Relay
A/C COMP Air Conditioning Compressor
TCMB Transmission Control Module
RR WPR Not Used
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
Rear Heated Seats,
Universal Home Remote
SystemFuses Usage
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRNK Starting System
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamps Relay
FOG LP Fog Lamps
HORN Horn Relay
W/S WASHWindshield Washer
Pump Relay
W/S WASH Windshield Washer Pump
INFOOnStar
®/Rear Seat
Entertainment
RADIO AMP Radio Amplier
RH HID Not Used
HORN Horn
EAP Not Used
TREC Not Used
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