light GMC YUKON DENALI 2010 Workshop Manual

Heated Steering Wheel
For vehicles with a heated steering wheel, the button for
this feature is located on the steering wheel.
(:Press to turn the heated steering wheel on or off.
A light on the button displays when the feature is
turned on.
The steering wheel takes about three minutes to start
heating.
Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
G: Turn and Lane Change Signals
5 3:Headlamp High/Low-Beam Changer
N:Windshield Wipers
L:Windshield Washer
5:Rear Wiper Delay
Z:Rear Wiper
=:Rear Wiper Wash
Flash-to-Pass.
Information for these features is on the pages following.
4-4

Turn and Lane-Change Signals
An arrow on the
instrument panel cluster
flashes in the direction of
the turn or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever for less than one second
until the arrow starts to flash to signal a lane change.
This causes the turn signals to automatically flash
three times. It will flash six times if tow-haul mode is
active. Holding the turn signal lever for more than
one second will cause the turn signals to flash until you
release the lever.
The lever returns to its starting position whenever it is
released.
If after signaling a turn or a lane change the arrows
flash rapidly or do not come on, a signal bulb could be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. See Fuses and Circuit Breakers
on
page 6‑107.
Turn Signal On Chime
If the turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime will sound at each flash of the turn
signal and the message TURN SIGNAL ON will also
appear in the Driver Information Control (DIC). To turn
the chime and message off, move the turn signal lever
to the off position.
Headlamp High/Low-Beam Changer
53 (Headlamp High/Low Beam Changer) :
To change the headlamps from low to high beam,
push the lever toward the instrument panel. To return
to low-beam headlamps, pull the multifunction lever
toward you. Then release it.
When the high beams are
on, this indicator light on
the instrument panel
cluster will also be on.
4-5

The cruise control buttons
are located on left side of
the steering wheel.
T(On/Off):Turns the system on and off. The
indicator light on the button turns on when cruise control
is on and turns off when cruise control is off.
+ RES (Resume/Accelerate) : Press to make the
vehicle accelerate or resume to a previously set speed.
SET −(Set/Coast) : Press to set the speed or make the
vehicle decelerate.
[(Cancel): Press to cancel cruise control without
erasing the set speed from memory.
Setting Cruise Control
Cruise control will not work if the parking brake is set,
or if the master cylinder brake fluid level is low.
The cruise control light on the instrument panel cluster
comes on after the cruise control has been set to the
desired speed.
{WARNING:
If you leave your cruise control on when you are
not using cruise, you might hit a button and go
into cruise when you do not want to. You could be
startled and even lose control. Keep the cruise
control switch off until you want to use cruise
control.
1. Press
T.
2. Get up to the desired speed.
3. Press the SET− button located on the steering
wheel and release it.
4. Take your foot off the accelerator.
4-9

When going downhill, you might have to brake or shift
to a lower gear to keep the vehicle's speed down. When
the brakes are applied the cruise control is disengaged.
Ending Cruise Control
There are three ways to end cruise control:
.Step lightly on the brake pedal.
.Press the[button on the steering wheel.
.Press theIbutton on the steering wheel.
Erasing Speed Memory
The cruise control set speed memory is erased when
the cruise control or the ignition is turned off.
Exterior Lamps
The exterior lamps
control is located on the
instrument panel to the
left of the steering wheel.It controls the following systems:
.Headlamps
.Taillamps
.Parking Lamps
.License Plate Lamps
.Instrument Panel Lights
The exterior lamps control has four positions:
O(Off): Turns off the automatic headlamps and
daytime running lamps (DRL). Turning the headlamp
control to the off position again turns the automatic
headlamps or DRL back on.
For vehicles first sold in Canada, the off position only
works for vehicles that are shifted into the P (Park)
position.
AUTO (Automatic) : Automatically turns on the
headlamps at normal brightness, together with the
following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
4-11

;(Parking Lamps) : Turns on the parking lamps
together with the following:
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
2 (Headlamps) : Turns on the headlamps together with
the following lamps listed below.
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
When the headlamps are turned on while the vehicle is
on, the headlamps will turn off automatically 10 minutes
after the ignition is turned off. When the headlamps are
turned on while the vehicle is off, the headlamps will
stay on for 10 minutes before automatically turning off
to prevent the battery from being drained. Turn the
headlamp control to off and then back to the headlamp
on position to make the headlamps stay on for an
additional 10 minutes.
Headlamps on Reminder
A reminder chime will sound when the headlamps or
parking lamps are manually turned on and the ignition is
off and a door is open. To disable the chime, turn the
light off.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional daytime running lamps are required on
all vehicles first sold in Canada.
The DRL system comes on when the following
conditions are met:
.The ignition is on.
.The exterior lamps control is in AUTO.
.The engine is running.
.The light sensor determines it is daytime.
When the DRL system is on, only the DRL lamps are
on. The taillamps, sidemarker, instrument panel lights,
and other lamps will not be on.
When it begins to get dark, the automatic headlamp
system switches from DRL to the headlamps.
4-12

To turn off the DRL lamps, turn the exterior lamps
control to the OFF position and then release.
For vehicles first sold in Canada, the transmission
must be in the P (Park) position, before the DRL lamps
can be turned off.
Automatic Headlamp System
When it is dark enough outside, the automatic
headlamp system turns on the headlamps at the normal
brightness, along with the taillamps, sidemarker, parking
lamps, and the instrument panel lights. The radio lights
will also be dim.
To turn off the automatic headlamp system, turn the
exterior lamps switch to the off position and then
release it. For vehicles first sold in Canada, the
transmission must be in the P (Park) position, before
the automatic headlamp system can be turned off.
The vehicle has a light sensor located on the top of the
instrument panel in the defroster grille that regulates
when the automatic headlamps turn on. Do not cover
the sensor or the headlamps will come on whenever the
ignition is on.
The system may also turn on the 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 is only affected when the light
sensor detects a change in lighting lasting longer than
the delay.
If the vehicle is started in a dark garage, the automatic
headlamp system will come on immediately. Once the
vehicle leaves the garage, it takes approximately
one minute for the automatic headlamp system to
change to DRL if it is bright enough outside. During that
delay, the instrument panel cluster may not be as bright
as usual. Make sure the instrument panel brightness
control is in the full bright position. See
Instrument
Panel Brightness on page 4‑14.
To idle the vehicle with the automatic headlamp system
off, turn the control to the off position.
The headlamps will also stay on after you exit the
vehicle. This feature can be programmed using the
Driver Information Center (DIC). See DIC Vehicle
Customization (With DIC Buttons) on page 4‑66.
The regular headlamp system can be turned on when
needed.
4-13

Fog Lamps
For vehicles with fog lamps, the control is located next
to the exterior lamps control on the instrument panel to
the left of the steering column.
#(Fog Lamps):Press the button to turn the fog lamps
on or off. A indicator light comes on in the instrument
panel cluster. The ignition must be in the ON/RUN
position for the fog lamps to come on.
When the fog lamps are turned on, the headlamps
automatically turn on.
When the headlamps are changed to high-beam, the
fog lamps also go off. When the high-beam headlamps
go off, the fog lamps will come on again.
Some localities have laws that require the headlamps to
be on along with the fog lamps.
Instrument Panel Brightness
D (Instrument Panel Brightness) : This feature
controls the brightness of the instrument panel lights
and is located next to the exterior lamp control.
Push the knob to extend out and then it can be turned. Turn the knob clockwise or counterclockwise to brighten
or dim the instrument panel lights. Turning the knob to
the farthest clockwise position turns on the dome lamps.
Dome Lamps
The dome lamps come on when any door is opened.
They turn off after all the doors are closed.
The dome lamps can also be turned on by turning the
instrument panel brightness knob, located on the
instrument panel to the left of the steering column,
clockwise to the farthest position. In this position, the
dome lamps remain on whether a door is opened or
closed.
Dome Lamp Override
The dome lamp override button is located next to the
exterior lamps control.
k(Dome Off):
Press the button in and the dome
lamps remain off when a door is opened. Press the
button again to return it to the extended position so that
the dome lamps come on when a door is opened.
4-14

Entry Lighting
The vehicle has an illuminated entry feature.
When the doors are opened, the dome lamps will
come on if the dome override button is in the extended
position. If the dome override button is pressed in,
the lamps will not come on.
Exit Lighting
The interior lamps come on when the key is removed
from the ignition. They turn off automatically in
20 seconds. The lights do not come on if the dome
override button is pressed in.
Front Reading Lamps
The reading lamps are located on the overhead
console.
To turn the reading lamps on or off, press the button
located next to each lamp.
The lamps can be adjusted to a desired direction.
The vehicle may also have reading lamps in other
locations. To turn the lamps on or off, press the button
located next to the lamp. These lamps are fixed and
cannot be adjusted.
Electric Power Management
The vehicle has Electric Power Management (EPM) that
estimates the battery's temperature and state of charge.
It then adjusts the voltage for best performance and
extended life of the battery.
When the battery's state of charge is low, the voltage is
raised slightly to quickly bring the charge back up.
When the state of charge is high, the voltage is lowered
slightly to prevent overcharging. If the vehicle has a
voltmeter gage or a voltage display on the Driver
Information Center (DIC), you may see the voltage
move up or down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles. This is
because the generator (alternator) may not be spinning
fast enough at idle to produce all the power that is
needed for very high electrical loads.
A high electrical load occurs when several of the
following are on, such as: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at high
speed, heated seats, engine cooling fans, trailer loads,
and loads plugged into accessory power outlets.
4-15

Certain accessory plugs may not be compatible to the
accessory power outlet and could result in blown
adapter or vehicle fuses. If you experience a problem,
see your dealer/retailer for additional information on the
accessory power plugs.
Notice:Adding any electrical equipment to the
vehicle can damage it or keep other components
from working as they should. The repairs would not
be covered by the vehicle warranty. Do not use
equipment exceeding maximum amperage rating of
20 amperes. Check with your dealer/retailer before
adding electrical equipment.
When adding electrical equipment, be sure to follow
the proper installation instructions included with the
equipment. Do not use equipment exceeding the
maximum amperage rating of 20 amperes.
Notice: Improper use of the power outlet can cause
damage not covered by the vehicle warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.Ashtray(s) and Cigarette Lighter
The front ashtray is located near the center of the
instrument panel or on the front console, if equipped.
Pull on the ashtray door to open it.
Notice: If papers, pins, or other flammable items are
put in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
the vehicle. Never put flammable items in the
ashtray.
To remove the front ashtray pull the ashtray up.
To use the cigarette lighter, push it in all the way, and
let go. When it is ready, it will pop back out by itself.
Notice: Holding a cigarette lighter in while it is
heating does not let the lighter back away from the
heating element when it is hot. Damage from
overheating can occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
4-17

Press the + or−buttons to increase or decrease the
cabin temperature. The driver side or passenger side
temperature display shows the temperature setting
decreasing or increasing.
The passenger's temperature setting can be set to
match the driver's temperature setting by pressing the
PASS button and turning off the PASS indicator. When
the passenger's temperature setting is set different than
the driver's setting, the indicator on the PASS button
illuminates and both the driver side and passenger side
temperature displays are shown.
When in defrost mode the passenger temperature
setting cannot be changed.
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 temperature(s) and AUTO will be
lit on the display. The current delivery mode and
fan speed will also be displayed for approximately
5 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 about
4°C (40°F). The air inlet will normally be set to
outside air. If it is hot outside, the air inlet may
automatically switch to recirculate inside air to help
quickly cool down the vehicle. The light on the
button comes on in recirculation.
2. Set the driver's and passenger's temperature. To find your comfort setting, start with a 23°C
(74°F) temperature setting and allow about
20 minutes for the system to regulate. Use the
driver's or passenger's temperature buttons to
adjust the temperature setting as necessary. If a
temperature setting of 15°C (60°F) is chosen, the
system remains at the maximum cooling setting.
If a temperature setting of 32°C (90°F) is chosen,
the system remains at the maximum heat setting.
Choosing either maximum setting will not cause
the vehicle to heat or cool any faster.
Do not to cover the solar sensor located on the top of
the instrument panel near the windshield. This sensor
regulates air temperature based on sun load and also
turns on the headlamps. For more information on the
solar sensor, see “Sensors”later in this section.
4-19