2008 GMC YUKON DENALI Owners Manual

Tilt Wheel
Your vehicle has a tilt wheel, that lets you adjust the
steering wheel before driving. Raising it to the highest
level gives more room to exit and enter your vehicle.
The tilt steering wheel lever is located on the lower left
side of the column.
To tilt the wheel, hold the steering wheel and pull the
lever. Then move the steering wheel to a comfortable
position and release the lever to lock the wheel in place.
Heated Steering Wheel
Your vehicle may have a heated steering wheel.
The button with this
symbol is located on the
left side of the steering
wheel.
Press the button to turn the heated steering wheel on or
off. A light on the button will display when the feature
is turned on.
The steering wheel will take about three minutes to start
heating.
3-7

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
G(Turn and Lane Change Signals):SeeTurn and
Lane-Change Signals on page 3-8.
53(Headlamp High/Low-Beam Changer):See
Headlamp High/Low-Beam Changer on page 3-9.
Flash-to-Pass. SeeFlash-to-Pass on page 3-9.
N(Windshield Wipers):SeeWindshield Wipers on
page 3-10.
L(Windshield Washer):SeeWindshield Washer on
page 3-11.
5(Rear Wiper Delay):SeeRear Window
Wiper/Washer on page 3-12.
Z(Rear Wiper):SeeRear Window Wiper/Washer on
page 3-12.
=(Rear Wiper Wash):SeeRear Window
Wiper/Washer on page 3-12.
Turn and Lane-Change Signals
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow you
to signal a turn or a lane change.
To signal a turn, move the lever all the way up or down.
When the turn is nished, the lever will return
automatically.
To signal a lane change, raise or lower the lever for less
than one second until the arrow starts to ash. This will
cause the turn signals to automatically ash three times.
It will ash six times if tow-haul mode is active. Holding
the turn signal lever for more than one second will cause
the turn signals to ash until you release the lever. The
lever will return by itself when it is released.
3-8

An arrow on the instrument
panel cluster will ash in
the direction of the
turn or lane change.
As you signal a turn or a lane change, if the arrows ash
more quickly than normal, a signal bulb may be burned
out and other drivers will not see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows do not go on at all when you
signal a turn, check for burned-out bulbs and a
blown fuse. SeeFuses and Circuit Breakers on
page 5-108.
Turn Signal On Chime
If your turn signal is left on for more than 3/4 of a mile
(1.2 km), a chime will sound at each ash 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.
Flash-to-Pass
This feature lets you use your high-beam headlamps to
signal a driver in front of you that you want to pass.
It works even if your headlamps are in the automatic
position.
To use it, pull the turn signal lever toward you, then
release it.
3-9

If your headlamps are in the automatic position or on
low beam, your high-beam headlamps will turn on. They
will stay on as long as you hold the lever toward you.
The high-beam indicator on the instrument panel cluster
will come on. Release the lever to return to normal
operation.
Windshield Wipers
Clear ice and snow from the wiper blades before using
them. If they are frozen to the windshield, gently
loosen or thaw them. Damaged wiper blades may not
clear the windshield well, making it harder to see
and drive safely. If the blades do become damaged,
install new blades or blade inserts. For more information,
seeWindshield Wiper Blade Replacement on page 5-53.
Heavy snow or ice can overload the wiper motor. A
circuit breaker will stop the motor until it cools down.
Clear away snow or ice to prevent an overload.
Turn the band with the wiper symbol to control the
windshield wipers.
8(Mist):Turn the band to mist for a single wiping
cycle. Hold it there until the wipers start. Then let
go. The wipers stop after one wipe. Hold the band on
mist longer, for more wipe cycles.
9(Off):To stop the wipers, move the band to off.
6(Delay):Turn the band to adjust the delay time. The
delay between wiping cycles becomes shorter as
the band is moved to the top of the lever. This can be
very useful in light rain or snow.
6(Low Speed):Turn the band away from you to
the rst solid band past the delay settings, for steady
wiping at low speed.
?(High Speed):Turn the band further, to the
second solid band past the delay settings, for
high-speed wiping.
Rainsense™ II Wipers
Your vehicle has Rainsense™ II windshield wipers.
These wipers automatically turn on when a sensor,
mounted next to the inside rearview mirror, detects
moisture on the windshield. When active, these wipers
are able to detect moisture on the windshield and
automatically turn on the wipers.
3-10

To turn on the Rainsense™ feature, the wipers must
be set to one of the ve delay settings. Each of the
ve settings adjusts the sensitivity of the rain sensor.
Since different drivers have different setting preferences,
it is recommended that the mid-range setting, position
three, be used initially. For more wipes, select the higher
settings; for fewer wipes, select the lower settings located
closer to the off position on the multifunction lever.
The rain sensor will automatically control the frequency
of the wipes from off to high speed according to the
weather conditions. The wipers can be left in a
Rainsense™ mode even when it is not raining.
When Rainsense™ II is active, the headlamps will turn
on automatically after approximately eight wipes.
The headlamps will turn off if the wiper switch is set to a
delay position, and there have been no wipes for
approximately three minutes, or if the wiper switch is
turned to the off position. If it is dark outside, the
headlamps will remain on.
Notice:Going through an automatic car wash with
the wipers on can damage them. Turn the wipers
off when going through an automatic car wash.Windshield Washer
{CAUTION:
In freezing weather, do not use your washer
until the windshield is warmed. Otherwise the
washer uid can form ice on the windshield,
blocking your vision.
L(Washer Fluid):Push the paddle marked with the
windshield washer symbol at the top of the multifunction
lever, to spray washer uid on the windshield. The
wipers clear the window and then either stop or return
to the preset speed.
3-11

Heated Windshield Washer
For vehicles with the heated windshield washer uid
system it can be used to help clear ice, snow, tree sap,
or bugs from your windshield.
The button is located in
the switchbank under the
climate controls.
Push the heated washer uid button to activate the
heated windshield washer uid system. The indicator
light will ash. This activation initiates four heated
wash/wipe cycles. The rst heated wash/wipe cycle may
take up to 40 seconds to occur, depending on outside
temperature. After the rst wash/wipe cycle, it may take
up to 20 seconds for each of the remaining cycles to
begin. Press the button again to turn off the heated
windshield washer uid system or it will automatically
turn off after four wipe cycles have been completed.
When the heated windshield washer uid system
is activated under certain outside temperature
conditions, steam may ow out of the washer nozzles
for a short period of time before washer uid is sprayed.
This is a normal condition.
Rear Window Wiper/Washer
{CAUTION:
In freezing weather, do not use your washer
until the windshield is warmed. Otherwise the
washer uid can form ice on the windshield,
blocking your vision.
The rear wiper control is located on the turn
signal/multifunction lever.
To turn the rear wiper on, slide the lever to a wiper
position.
9(Off):To turn the wiper off, slide the lever to this
setting.
5(Rear Wiper Delay):To turn on the rear wiper
delay, slide the lever to this setting.
Z(Rear Wiper):To turn on the rear wiper, slide the
lever to this setting.
3-12

=(Rear Wiper Wash):To turn on the rear wiper
wash, push the button on the end of the turn
signal/multifunction lever to spray washer uid on the
rear window. The wipers will clear the rear window and
either stop or return to your preset speed. For more
washer cycles, press and hold the button.
The rear window wiper/washer will not operate if the
liftgate or liftglass is open or ajar. If the liftgate or
liftglass is opened while the rear wiper is on, the wiper
will return to the parked position and stop.
Cruise Control
{CAUTION:
Cruise control can be dangerous where you
cannot drive safely at a steady speed. So, do
not use your cruise control on winding roads
or in heavy traffic.
Cruise control can be dangerous on slippery
roads. On such roads, fast changes in tire
traction can cause excessive wheel slip, and
you could lose control. Do not use cruise
control on slippery roads.With cruise control, a speed of about 25 mph (40 km/h)
or more can be maintained without keeping your foot
on the accelerator. This can really help on long
trips. Cruise control does not work at speeds below
about 25 mph (40 km/h).
When the brakes are applied, the cruise control
turns off.
If your vehicle has the StabiliTrak
®system and begins
to limit wheel spin while you are using cruise control, the
cruise control will automatically disengage. See
StabiliTrak
®System on page 4-6. When road conditions
allow you to safely use it again, you may turn the
cruise control back on.
3-13

The cruise control buttons
are located on left side of
the steering wheel.
T(On/Off):This button can both activate and turn
off the system. 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 this button to
make the vehicle accelerate or resume to a previously
set speed.
SET−(Set/Coast):Press this button to set the speed
or make the vehicle decelerate.
[(Cancel):Press this button to cancel cruise control
without erasing the set speed from memory.
Setting Cruise Control
Cruise control will not work if your parking brake is set,
or if the master cylinder brake uid 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.
{CAUTION:
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 the cruise control On/Off button.
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.
3-14