display GMC YUKON 2008 User Guide

In order to calibrate, CAL must be displayed in the
mirror compass windows. If CAL is not displayed, push
in the compass/temperature button for approximately
nine seconds or until CAL is displayed.
The compass can be calibrated by driving the vehicle in
circles at 5 mph (8 km/h) or less until the display
reads a direction.
Compass Variance
The mirror is set in zone eight upon leaving the factory.
It will be necessary to adjust the compass to
compensate for compass variance if the vehicle is
outside zone eight. Under certain circumstances, as
during a long distance cross-country trip, it will be
necessary to adjust for compass variance. Compass
variance is the difference between earth’s magnetic
north and true geographic north. If not adjusted
to account for compass variance, your compass could
give false readings.To adjust for compass variance:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold the compass/temperature button for
six seconds until a zone number appears in the
display.
3. Press the compass/temperature button on the
bottom of the mirror until the new zone number
appears in the display. After you stop pressing the
button, the display will show a compass direction
within a few seconds.
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Outside Automatic Dimming Mirror
If your vehicle has this feature, the driver’s outside mirror
will adjust for the glare of headlamps behind you. This
feature is controlled by the on and off settings found
on the electrochromic inside mirror. SeeAutomatic
Dimming Rearview Mirror with OnStar
®, Compass and
Temperature Display on page 2-49orAutomatic
Dimming Rearview Mirror with Compass and
Temperature Display on page 2-52for more information.
Park Tilt Mirrors
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 side mirror and/or driver side mirror to tilt
to a preselected position when the vehicle is in
REVERSE (R).
The passenger side mirror and/or the driver side mirror
will return to its original position when the vehicle is
shifted out of REVERSE (R) or the ignition is turned to off.
This feature can be turned on or off through the Driver
Information Center (DIC). SeeDIC Vehicle
Customization (With DIC Buttons) on page 3-72for
more information.
Outside 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 side mirror may have convex glass. A
convex mirror’s surface is curved so more can be seen
from the driver’s seat. It also makes things like other
vehicles, look farther away than they really are.
Outside Heated Mirrors
The vehicle may have outside heated mirrors which
help clear them of condensation, snow, and ice.
When the rear window defogger button is pressed, the
heated mirrors are also turned on. See “Rear Window
Defogger” underDual Automatic Climate Control System
on page 3-26orClimate Control System on page 3-23
for more information.
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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.
{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.
CAUTION: (Continued)
CAUTION: (Continued)
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.
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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.
To be detected, objects must be at least 10 inches
(25.4 cm) off the ground and below liftgate level. Objects
must also be within 8 feet (2.5 m) from your rear
bumper. This distance may be less during warmer or
humid weather.
A single beep will sound the rst time an object is
detected between 20 inches (0.5 m) and 8 feet (2.5 m)
away. Beeping will occur for three seconds when
you are closer than 1 foot (0.3 m) from the object.The following describes what will occur with the URPA
display as you get closer to a detected object:
Description English Metric
amber light 8 ft 2.5 m
amber/amber lights 40 in 1.0 m
amber/amber/red lights 23 in 0.6 m
amber/amber/red lights
ashing and beep for
three seconds1 ft 0.3 m
The system can be
disabled by pressing the
rear park aid disable button
located next to the radio.
The indicator light will
come on to indicate that
URPA is off.
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When the System Does Not Seem to
Work Properly
The driver disables the system.
The parking brake pedal is depressed.
The ultrasonic sensors are not clean. Keep your
vehicle’s rear bumper free of mud, dirt, snow,
ice and slush. For cleaning instructions, see
Washing Your Vehicle on page 5-111.
A trailer was attached to your vehicle, or a bicycle
or an object was hanging out of your liftgate/liftglass
during your last drive cycle, the red light may
illuminate in the rear display. Once the attached
object is removed, URPA will return to normal
operation.
A tow bar is attached to your vehicle.
The vehicle’s bumper is damaged. Take the vehicle
to your dealer/retailer to repair the system.
Other conditions may affect system performance,
such as vibrations from a jackhammer or the
compression of air brakes on a very large truck.
If the system is still disabled, after driving forward at
least 15 mph (25 km/h), take your vehicle to your
dealer/retailer.
OnStar®System
OnStar uses several innovative technologies and live
advisors to provide you with a wide range of safety,
security, information, and convenience services. If your
airbags deploy, the system is designed to make an
automatic call to OnStar Emergency advisors who can
request emergency services be sent to your location.
If you lock your keys in the vehicle, call OnStar at
1-888-4-ONSTAR and they can send a signal to unlock
your doors. If you need roadside assistance, press
the OnStar button and they can contact Roadside
Service for you.
OnStar service is provided to you subject to the
OnStar Terms and Conditions. You may cancel your
OnStar service at any time by contacting OnStar.
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Malfunction Indicator Lamp.............................3-48
Oil Pressure Gage........................................3-51
Oil Pressure Light.........................................3-52
Security Light...............................................3-52
Fog Lamp Light............................................3-53
Cruise Control Light......................................3-53
Highbeam On Light.......................................3-53
Tow/Haul Mode Light....................................3-53
Fuel Gage...................................................3-54
Low Fuel Warning Light.................................3-55
Driver Information Center (DIC).......................3-55
DIC Operation and Displays
(With DIC Buttons)....................................3-56
DIC Operation and Displays
(Without DIC Buttons)................................3-61
DIC Warnings and Messages.........................3-64
DIC Vehicle Customization
(With DIC Buttons)....................................3-72Audio System(s).............................................3-81
Setting the Clock..........................................3-82
Radio(s) (MP3).............................................3-84
Using an MP3 (Radio with CD or Six-Disc
CD Player).............................................3-103
Using an MP3 (Radio with CD and
DVD Player)...........................................3-108
XM Radio Messages...................................3-113
Navigation/Radio System..............................3-114
Rear Seat Entertainment (RSE) System.........3-115
Rear Seat Audio (RSA)................................3-125
Theft-Deterrent Feature................................3-127
Audio Steering Wheel Controls......................3-128
Radio Reception.........................................3-129
Rear Side Window Antenna..........................3-130
XM™ Satellite Radio Antenna System............3-130
Section 3 Instrument Panel
3-2

Reading Lamps
If your vehicle has reading lamps they are located on
the overhead console.
To turn on the reading lamps, press the button located
next to each lamp. To turn them off, press the button
again.
Your vehicle may also have reading lamps in other
locations. To turn the lamps on or off, press the button
located next to the lamp.
The lamps are xed 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 put the charge back in. 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 loads are on: 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.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands of
some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels
of corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC)
message might be displayed, such as Battery Saver
Active or Service Battery Charging System. If this
message is displayed, it is recommended that the driver
reduce the electrical loads as much as possible. See
DIC Warnings and Messages on page 3-64.
3-21

Driver’s Side Temperature Control
The driver’s side temperature buttons are used to adjust
the temperature of the air coming through the system on
the driver’s side. The temperature can be adjusted even if
the system is turned off. This is possible since outside air
will always ow through the system as the vehicle is
moving forward unless it is set to recirculation mode. See
“Recirculation” later in this section.
Press the + or−buttons to increase or decrease the
cabin temperature. The driver side temperature display
will show the temperature setting decreasing or
increasing.
Passenger’s Side Temperature Control
The passenger’s temperature buttons can be used to
change the temperature of the air coming through
the system on the passenger’s side of the vehicle. The
temperature can be adjusted even if the system is
turned off. This is possible since outside air will always
ow through the system as the vehicle is moving
forward unless it is set to recirculation mode. See
“Recirculation” later in this section.Press the + or−buttons to increase or decrease the
cabin temperature. The passenger side display will show
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 will
illuminate and both the driver’s side and passenger’s side
temperature displays will be shown.
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.
3-27

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
40°F (4°C). 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 will illuminate in recirculation.
2. Set the driver’s and passenger’s temperature.
To nd your comfort setting, start with a 74°F (23°C)
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 you choose the
temperature setting of 60°F (15°C), the system
will remain at the maximum cooling setting. If you
choose the temperature setting of 90°F (32°C),
the system will remain at the maximum heat setting.
Choosing either maximum setting will not cause
the vehicle to heat or cool any faster.Be careful 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.
To avoid blowing cold air in cold weather, the system will
delay turning on the fan until warm air is available.
The length of delay depends on the engine coolant
temperature. Pressing the fan switch will override this
delay and change the fan to a selected speed.
O(On/Off):Press this button to turn off the 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. Recirculation
can be selected once vent or bi-level mode has
been selected. The temperature can also be adjusted
using either temperature button. If the air delivery mode
or temperature settings are adjusted with the system
off, the display will illuminate briey to show you
the settings and then return off. Press the on/off button
or the up down arrows on the fan switch, the defrost
button, AUTO button, or the air conditioning button
to turn the system on when it is off.
3-28

Manual Operation
You may manually adjust the air delivery mode or fan
speed.
y9 z(Fan):The buttons with the fan symbols
allow you to manually adjust the fan speed. Press the
up arrow to increase fan speed and the down arrow
to decrease fan speed.
Pressing one of these buttons when the system is off
will turn the system on. Pressing one of these buttons
when in automatic control will place the fan under
manual control. The fan setting will remain displayed
and the AUTO light will turn off. The air delivery
mode will remain under automatic control.
yNz(Mode):Press the mode up and down
buttons to manually change the direction of the airow
in the vehicle. Repeatedly press the button until the
desired mode appears on the display. Pressing one of
these buttons when the system is off will change air
delivery mode without turning the system on. Pressing
one of these buttons when in automatic control will place
the mode under manual control.The air delivery mode setting will be displayed and the
AUTO light will turn off. The fan will remain under
automatic control.
H(Vent):This setting will deliver air to the instrument
panel outlets.
)(Bi-Level):This mode directs half of the air to the
instrument panel outlets and half to the oor outlets.
The ow can be divided between vent and oor outlets
depending upon where the knob is placed between
the settings. A little air is directed towards the windshield
and 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 some of the air directed to the
windshield, side window outlets, and second row oor
outlets. In this mode, the system automatically
selects outside air.
-(Defog):See “Defogging and Defrosting” later in
this section.
3-29