2008 GMC YUKON DENALI park assist

Keys...............................................................2-3
Remote Keyless Entry (RKE) System................2-4
Remote Keyless Entry (RKE) System
Operation...................................................2-5
Remote Vehicle Start......................................2-8
Doors and Locks............................................2-10
Door Locks..................................................2-10
Power Door Locks........................................2-11
Delayed Locking...........................................2-11
Programmable Automatic
Door Locks...............................................2-11
Rear Door Security Locks..............................2-12
Lockout Protection........................................2-12
Liftgate/Liftglass............................................2-13
Power Liftgate..............................................2-15
Power Running Boards..................................2-18
Windows........................................................2-19
Power Windows............................................2-20
Sun Visors...................................................2-21
Theft-Deterrent Systems..................................2-21
Content Theft-Deterrent.................................2-22
PASS-Key
®III+............................................2-23
PASS-Key®III+ Operation..............................2-24Starting and Operating Your Vehicle................2-25
New Vehicle Break-In....................................2-25
Ignition Positions..........................................2-26
Retained Accessory Power (RAP)...................2-27
Starting the Engine.......................................2-27
Adjustable Throttle and Brake Pedal................2-29
Engine Coolant Heater..................................2-29
Automatic Transmission Operation...................2-30
Tow/Haul Mode............................................2-34
Parking Brake..............................................2-35
Shifting Into PARK (P)...................................2-36
Shifting Out of PARK (P)...............................2-37
Parking Over Things That Burn.......................2-38
Engine Exhaust............................................2-38
Running the Engine While Parked...................2-39
Mirrors...........................................................2-40
Automatic Dimming Rearview Mirror with
OnStar
®, Compass and Temperature
Display....................................................2-40
Outside Power Foldaway Mirrors.....................2-42
Object Detection Systems...............................2-44
Ultrasonic Rear Parking Assist (URPA)............2-44
Section 2 Features and Controls
2-1

If the mirrors are accidentally folded/unfolded manually,
they may shake or utter at normal driving speeds
and may not stay in the unfolded position. If this
happens, you will need to reset the mirrors. See
“Resetting the Power Foldaway Mirrors” next.
Resetting the Power Foldaway Mirrors
You will need to reset the power foldaway mirrors if the
following occurs:
The mirrors are accidentally obstructed while
folding.
They are accidentally manually folded/unfolded.
The mirrors will not stay in the unfolded position.
The mirrors shake and utter at normal driving
speeds.
To reset the power foldaway mirrors, fold and unfold
them one time using the mirror controls. This will reset
them to their normal position.
This mirror has the following features.
Automatic Dimming
The driver’s outside mirror will adjust for the glare of the
headlamps behind you. SeeAutomatic Dimming
Rearview Mirror with OnStar
®, Compass and
Temperature Display on page 2-40.
Curb View Assist
If your vehicle has the memory package, the outside
mirrors are able to perform the park tilt function. This
feature may be useful in allowing the driver to view the
curb when parallel parking. This feature will cause the
passenger’s and/or driver’s mirror to tilt to a preselected
position when the vehicle is in REVERSE (R).
The passenger’s and/or driver’s mirror will return to its
original position when the vehicle is shifted out of
REVERSE (R), or the ignition is turned off or to
OFF/LOCK.
This feature can be turned on or off through the Driver
Information Center (DIC). SeeDIC Vehicle
Customization (With DIC Buttons) on page 3-64.
Heated Mirrors
The button to turn the heated mirrors on or off is located
on the climate control panel. Press this button to
warm the driver’s and passenger’s outside rearview
mirrors to help clear them of ice, snow, and
condensation.
See “Rear Window Defogger” underDual Automatic
Climate Control System on page 3-23for more
information.
2-43

Convex Mirror
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
The passenger’s side mirror may have convex glass.
A convex mirror’s surface is curved so more can
be seen from the driver’s seat.
Your vehicle has a turn signal indicator on the mirror.
An arrow on the mirror will ash in the direction of
the turn or lane change.
Object Detection Systems
Ultrasonic Rear Parking
Assist (URPA)
If your vehicle has the Ultrasonic Rear Parking Assist
(URPA) system, it helps you park easier and avoid other
vehicles while in REVERSE (R). It operates at speeds
less than 5 mph (8 km/h). It can determine how close
objects are to the rear bumper, up to 8 feet (2.5 m)
behind your vehicle. The distance sensors are located
on the rear bumper.
2-44

{CAUTION:
The Ultrasonic Rear Parking Assist (URPA)
system does not replace driver vision.
It cannot detect:
objects that are below the bumper,
underneath the vehicle, or if they are
too close or far from the vehicle
children, pedestrians, bicyclists, or pets.
If you do not use proper care before and while
backing; vehicle damage, injury, or death
could occur. Even with URPA, always check
behind your vehicle before backing up. While
backing, be sure to look for objects and check
your vehicle’s mirrors.On some vehicles this
display is located near the
passenger side rear
window and can be seen
by looking over your
right shoulder.
If your vehicle has the display, there are three
color-coded lights to provide distance and system
information.
If your vehicle does not have the display and it has
URPA, you will hear the beeps as described in the
following information.
How the System Works
URPA comes on automatically when the shift lever is
moved into REVERSE (R). The rear display will
then briey illuminate to let you know the system is
working.
URPA operates only at speeds less than 5 mph (8 km/h).
If you are above this speed, the red light on the rear
display will ash.
2-45

Universal Home Remote System
Operation (With Three Round LED)
Your vehicle may have the Universal Home Remote
System. If there are three round Light Emitting Diode
(LED) indicator lights above the Universal Home Remote
buttons, follow the instructions below.
This system provides a way to replace up to three
remote control transmitters used to activate devices
such as garage door openers, security systems,
and home automation devices.
Do not use this system with any garage door opener
that does not have the stop and reverse feature.
This includes any garage door opener model
manufactured before April 1, 1982.
Read the instructions completely before attempting to
program the transmitter. Because of the steps involved,
it may be helpful to have another person available to
assist you in programming the transmitter.Be sure to keep the original remote control transmitter
for use in other vehicles, as well as, for future
programming. You only need the original remote control
transmitter for Fixed Code programming. It is also
recommended that upon the sale or lease termination of
the vehicle, the programmed buttons should be
erased for security purposes. See “Erasing Universal
Home Remote Buttons” later in this section.
When programming a garage door, it is advised to park
outside of the garage. Be sure that people and
objects are clear of the garage door or security device
you are programming.Programming Universal Home
Remote — Rolling Code
If you have questions or need help programming the
Universal Home Remote System, call 1-866-572-2728 or
go to www.learcar2u.com.
Most garage door openers sold after 1996 are Rolling
Code units.
Programming a garage door opener involves
time-sensitive actions, so read the entire procedure
before you begin. If you do not follow these actions, the
device will time out and you will have to repeat the
procedure.
2-51

A. Air Outlets. SeeOutlet Adjustment on page 3-29.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-8.
C. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-32.
D. Shift Lever. SeeAutomatic Transmission Operation
on page 2-30.
E. Tow/Haul Selector Button. SeeTow/Haul Mode on
page 2-34.
F. Driver Information Center Controls. SeeDriver
Information Center (DIC) on page 3-49.
G. Audio System. SeeAudio System(s) on page 3-73.
H. Exterior Lamps Control. SeeExterior Lamps on
page 3-16.
I. Dome Lamp Override Button. SeeDome Lamp
Override on page 3-20. Instrument Panel Brightness
Control. SeeInstrument Panel Brightness on
page 3-19. Fog Lamps. SeeFog Lamps on
page 3-19.J. Cruise Control Buttons. SeeCruise Control on
page 3-13. Heated Steering Wheel Button (If
Equipped). SeeHeated Steering Wheel on page 3-7.
K. Tilt Wheel Lever. SeeTilt Wheel on page 3-7.
L. Horn. SeeHorn on page 3-6.
M. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-117.
N. Dual Automatic Climate Controls. SeeDual
Automatic Climate Control System on page 3-23.
O. Accessory Power Outlets. SeeAccessory Power
Outlet(s) on page 3-21. Cigarette Lighter (If
Equipped). SeeAshtray(s) and Cigarette Lighter on
page 3-22.
P. StabiliTrak
®Button. SeeStabiliTrak®System on
page 4-6. Rear Park Aid Disable Button. See
Ultrasonic Rear Parking Assist (URPA) on
page 2-44.
Q. Glove Box. SeeGlove Box on page 2-58.
3-5

OIL PRESSURE LOW STOP ENGINE
Notice:If you drive your vehicle while the engine
oil pressure is low, severe engine damage may
occur. If a low oil pressure warning appears on the
Driver Information Center (DIC), stop the vehicle
as soon as possible. Do not drive the vehicle until
the cause of the low oil pressure is corrected.
SeeEngine Oil on page 5-13for more information.
This message displays if low oil pressure levels
occur. Stop the vehicle as soon as safely possible and
do not operate it until the cause of the low oil pressure
has been corrected. Check the oil as soon as possible
and have your vehicle serviced by your dealer/retailer.
SeeEngine Oil on page 5-13.
PARK ASSIST OFF
After the vehicle has been started, this message
displays to remind the driver that the Ultrasonic Rear
Parking Assist (URPA) system has been turned
off. Press the set/reset button or the trip odometer reset
stem to acknowledge this message and clear it from
the DIC display. To turn the URPA system back on, see
Ultrasonic Rear Parking Assist (URPA) on page 2-44.
PASSENGER DOOR OPEN
This message displays and a chime sounds if the
passenger door is not fully closed and the vehicle is in a
drive gear. Stop and turn off the vehicle, check the
door for obstructions, and close the door again. Check
to see if the message still appears on the DIC.
REAR ACCESS OPEN
This message displays and a chime sounds if the
liftgate or liftglass is open while the ignition is in
ON/RUN. Turn off the vehicle and check the liftgate and
liftglass. Restart the vehicle and check for the message
on the DIC display.
REMOTE KEY LEARNING ACTIVE
This message displays while you are matching a
Remote Keyless Entry (RKE) transmitter to your vehicle.
See “Matching Transmitter(s) to Your Vehicle” under
Remote Keyless Entry (RKE) System Operation
on page 2-5and “DIC Operation and Displays (Using
DIC Buttons)” earlier in this section for more information.
3-59

SERVICE BRAKES SOON
This message displays if there is a problem with the
brake system. 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. See
your dealer/retailer.
SERVICE PARK ASSIST
This message displays if there is a problem with the
Ultrasonic Rear Parking Assist (URPA) system. Do not
use this system to help you park. SeeUltrasonic
Rear Parking Assist (URPA) on page 2-44for more
information. See your dealer/retailer for service.
SERVICE STABILITRAK
If your vehicle has StabiliTrak®and this message
displays, it means there may be a problem with the
StabiliTrak
®system. If you see this message, try to reset
the system. Stop; turn off the engine for at least
15 seconds; then start the engine again. If this message
still comes on, it means there is a problem. You
should see your dealer/retailer for service. The vehicle
is safe to drive, however, you do not have the benet
of StabiliTrak
®, so reduce your speed and drive
accordingly.
SERVICE SUSPENSION SYSTEM
If your vehicle has the Autoride®suspension system,
this message displays when the Autoride®suspension
system is not operating properly. Have your vehicle
serviced by your dealer/retailer.
SERVICE THEFT DETERRENT SYSTEM
This message displays when there is a problem with
the theft-deterrent system. The vehicle may or may not
restart so you may want to take the vehicle to your
dealer/retailer before turning off the engine. See
PASS-Key
®III+ Operation on page 2-24for more
information.
SERVICE TIRE MONITOR SYSTEM
This message displays if a part on the Tire Pressure
Monitor System (TPMS) is not working properly. The tire
pressure light also ashes and then remains on during
the same ignition cycle. SeeTire Pressure Light on
page 3-41. Several conditions may cause this message
to appear. SeeTire Pressure Monitor Operation on
page 5-64for more information. If the warning comes on
and stays on, there may be a problem with the TPMS.
See your dealer/retailer.
3-61