2009 GMC YUKON warning light

The indicator light will come on and PARK ASSIST OFF
displays on the Driver Information Center (DIC) to
indicate that URPA is off, seeDIC Warnings and
Messages on page 3-64for information about clearing
the message.
When the System Does Not Seem to
Work Properly
If the URPA system will not activate due to a temporary
condition, the message PARK ASSIST OFF will be
displayed on the DIC and a red light will be shown on
the rear URPA display when the shift lever is moved into
R (Reverse). This occurs under the following conditions:
The driver disables the system.
The ultrasonic sensors are not clean. Keep the
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 the vehicle, or a bicycle or
an object was hanging out of the liftgate during the
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 the 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 the vehicle to your
dealer/retailer.
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SBZA Detection Zones
The SBZA sensor covers a zone of approximately one
lane over from both sides of the vehicle, 11 ft. or 3.5 m.
This zone starts at each side mirror and goes back
approximately 16 ft. (5.0 m). The height of the zone is
approximately between 1.5 ft. (0.5 m) and 6 ft. (2.0 m)
off the ground.
Use caution while changing lanes when towing a trailer,
as the SBZA detection zones do not change when a
trailer is towed.
How the System Works
When the vehicle is started, both outside mirror displays
will briey come on to indicate that the system is
operating. When the vehicle is moving forward, the
left or right side mirror SBZA display will light up
if a vehicle is detected in that blind zone. If the turn
signal is activated and a vehicle is also detected on the
same side, the SBZA display will ash to give you
extra warning not to change lanes.
SBZA displays do not come on while the vehicle is
approaching or passing other vehicles. At speeds
greater then 20 mph (32 km/h), SBZA displays may
come on when a vehicle you have passed remains in or
drops back into the detection zone.
SBZA can be disabled through the Driver Information
Center (DIC). SeeDriver Information Center (DIC) on
page 3-51for more information. If the SBZA is disabled
by the driver, the SBZA mirror displays will not light up
during normal driving.
Left Side Mirror DisplayRight Side Mirror
Display
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Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Rainsense™ II Wipers.....................................3-9
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-11
Cruise Control..............................................3-12
Exterior Lamps.............................................3-14
Headlamps on Reminder................................3-16
Daytime Running Lamps (DRL).......................3-16
Automatic Headlamp System..........................3-16
Fog Lamps ..................................................3-17
Auxiliary Roof Mounted Lamp.........................3-18
Instrument Panel Brightness...........................3-18
Dome Lamps ...............................................3-18
Dome Lamp Override....................................3-19
Entry Lighting...............................................3-19
Exit Lighting.................................................3-19
Reading Lamps............................................3-19
Electric Power Management...........................3-20Battery Run-Down Protection..........................3-20
Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Climate Controls............................................3-22
Climate Control System.................................3-22
Dual Automatic Climate Control System...........3-25
Outlet Adjustment.........................................3-31
Rear Air Conditioning and Heating System.......3-31
Rear Air Conditioning and Heating System
and Electronic Climate Controls
...................3-33
Warning Lights, Gages, and Indicators............3-34
Instrument Panel Cluster................................3-35
Speedometer and Odometer...........................3-36
Trip Odometer..............................................3-36
Tachometer.................................................3-36
Safety Belt Reminders...................................3-36
Airbag Readiness Light..................................3-37
Passenger Airbag Status Indicator...................3-38
Charging System Light..................................3-39
Voltmeter Gage............................................3-40
Brake System Warning Light..........................3-40
Antilock Brake System (ABS) Warning Light........3-42
StabiliTrak
®Indicator Light.............................3-42
Engine Coolant Temperature Gage..................3-43
Tire Pressure Light.......................................3-43
Malfunction Indicator Lamp.............................3-44
Section 3 Instrument Panel
3-1

Oil Pressure Gage........................................3-46
Oil Pressure Light.........................................3-48
Security Light...............................................3-48
Fog Lamp Light............................................3-49
Cruise Control Light......................................3-49
Highbeam On Light.......................................3-49
Tow/Haul Mode Light....................................3-49
Fuel Gage...................................................3-50
Low Fuel Warning Light.................................3-51
Driver Information Center (DIC).......................3-51
DIC Operation and Displays
(With DIC Buttons)....................................3-52
DIC Operation and Displays (Without
DIC Buttons).............................................3-57
DIC Compass..............................................3-61
DIC Warnings and Messages.........................3-64
DIC Vehicle Customization
(With DIC Buttons)....................................3-74Audio System(s).............................................3-83
Setting the Clock..........................................3-84
Radio(s)......................................................3-86
Using an MP3 (Radio with CD or
Six-Disc CD Player).................................3-102
Using an MP3 (Radio with CD and
DVD Player)...........................................3-107
XM Radio Messages...................................3-113
Navigation/Radio System..............................3-114
Bluetooth
®.................................................3-114
Rear Seat Entertainment (RSE) System.........3-125
Rear Seat Audio (RSA)................................3-134
Theft-Deterrent Feature................................3-136
Audio Steering Wheel Controls......................3-136
Radio Reception.........................................3-137
Rear Side Window Antenna..........................3-138
XM™ Satellite Radio Antenna System............3-138
Section 3 Instrument Panel
3-2

The main components of the instrument panel are the following:
A.Outlet Adjustment on page 3-31.
B.Turn Signal/Multifunction Lever on page 3-7.
C.Instrument Panel Cluster on page 3-35.
D.Hazard Warning Flashers on page 3-6.
E. Shift Lever. SeeAutomatic Transmission Operation
on page 2-29.
F.Tow/Haul Mode on page 2-35(If Equipped).
G.Driver Information Center (DIC) on page 3-51.
H.Audio System(s) on page 3-83.
I.Exterior Lamps on page 3-14.
J.Dome Lamp Override on page 3-19.Instrument
Panel Brightness on page 3-18.Fog Lamps
on page 3-17(If Equipped).
K.Hood Release on page 5-12.
L. Integrated Trailer Brake Controller (If Equipped).
Towing a Trailer on page 4-52.
M. Automatic Transfer Case Control. (If Equipped).
SeeFour-Wheel Drive on page 2-37.N.Cruise Control on page 3-12.
O.Tilt Wheel on page 3-6.
P.Horn on page 3-6.
Q.Audio Steering Wheel Controls on page 3-136.
R.Climate Control System on page 3-22orDual
Automatic Climate Control System on page 3-25
(If Equipped).
S.Accessory Power Outlet(s) on page 3-20. Cigarette
Lighter (If Equipped). SeeAshtray(s) and Cigarette
Lighter on page 3-21.
T.StabiliTrak
®System on page 4-6(If Equipped).
Pedal Adjust Button (If Equipped). SeeAdjustable
Throttle and Brake Pedal on page 2-27.Ultrasonic
Rear Parking Assist (URPA) on page 2-53(If
Equipped). Heated Windshield Washer Fluid Button
(If Equipped). SeeWindshield Washer on
page 3-10.Power Assist Steps on page 2-17
(If Equipped).
U.Glove Box on page 2-74.
3-5

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.
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 increaseengine 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,
BATTERY VOLTAGE LOW, or LOW BATTERY. If this
message is displayed, it is recommended that the driver
reduce the electrical loads as much as possible. SeeDIC
Warnings and Messages on page 3-64.
Battery Run-Down Protection
This feature shuts off the dome, and reading lamps
if they are left on for more than 10 minutes when
the ignition is off. This will keep the battery from
running down.
Accessory Power Outlet(s)
Accessory power outlets can be used to connect
auxiliary electrical equipment, such as a cellular
telephone.
There are two under the climate controls, one inside
the center oor console, one on the rear of the center
oor console and one accessory power outlet in the
rear cargo area on the passenger side.
3-20

Automatic Operation, If Equipped.
AUTO:Press the air delivery mode button until this
setting is selected to control the inside temperature, air
delivery, and fan speed. AUTO appears in the display
when automatic operation is active.
+/−(Increase/Decrease Temperature):Press
the+or−buttons to increase or decrease the cabin
temperature. The rear control temperature display will
show the temperature setting increasing or decreasing.
The display only indicates climate control functions when
the system is in rear independent mode.
Manual Operation
DC(Fan Control):Press these buttons on the rear
seat audio control panel to increase or decrease the
airow. Pressing the fan up button when the system is off
will turn the system on. The air delivery mode will remain
under automatic control.
+/−(Temperature Control):Press these buttons to
adjust the temperature of the air owing into the
passenger area. Press the + button for warmer air and
press the−button for cooler air.
N(Air Delivery Mode Control):Press the mode
button to change the direction of the airow in the
vehicle. Repeatedly press the button until the desired
mode appears on the display. Multiple presses will cycle
through the delivery selections.
Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause
an expensive repair or replacement. Paying attention to
the warning lights and gages could prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is
started to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there
may be a problem, check the section that explains what
to do. Follow this manual’s advice. Waiting to do
repairs can be costly and even dangerous.
3-34

This chime and light are
repeated if the passenger
remains unbuckled and
the vehicle is in motion.
If the passenger safety belt is buckled, neither the
chime nor the light comes on.
The front passenger safety belt warning light and chime
may turn on if an object is put on the seat such as a
briefcase, handbag, grocery bag, laptop or other
electronic device. To turn off the warning light and or
chime, remove the object from the seat or buckle the
safety belt.
Airbag Readiness Light
The system checks the airbag’s electrical system for
possible malfunctions. If the light stays on it indicates
there is an electrical problem. The system check
includes the airbag sensor, the pretensioners, the airbag
modules, the wiring and the crash sensing and
diagnostic module. For more information on the airbag
system, seeAirbag System on page 1-81.The airbag readiness light
ashes for a few seconds
when the engine is
started. If the light does
not come on then, have it
xed immediately.
{CAUTION:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not
inate in a crash, or they could even inate
without a crash. To help avoid injury, have the
vehicle serviced right away.
If there is a problem with the airbag system, an airbag
Driver Information Center (DIC) message can also come
on. SeeDIC Warnings and Messages on page 3-64
for more information.
3-37