2009 GMC YUKON heating

To replace the battery:
1. Separate the transmitter with a at, thin object
inserted into the notch on the side.
2. Remove the old battery. Do not use a metal object.
3. Insert the new battery, positive side facing down.
Replace with a CR2032 or equivalent battery.
4. Snap the transmitter back together.
Remote Vehicle Start
Your vehicle may have a remote starting feature. This
feature allows you to start the engine from outside of the
vehicle. It may also start up the vehicle’s heating or
air conditioning systems and rear window defogger.
Normal operation of the system will return after the key
is turned to the ON/RUN position.
If your vehicle has an automatic climate control system,
the climate control system will default to a heating or
cooling mode depending on the outside temperatures.
If your vehicle does not have an automatic climate control
system, the system will turn on at the setting the vehicle
was set to when the vehicle was last turned off.
During a remote start, if your vehicle has an automatic
climate control system and heated seats, the heated
seats will turn on during colder outside temperatures and
will shut off when the key is turned to ON/RUN. If your
vehicle does not have an automatic climate control
system, during remote start, you will need to manually
turn the heated seats on and off. SeeHeated Seats on
page 1-7for additional information.
2-7

When you want to open a rear door when the security
lock is on, do the following:
1. Unlock the door by lifting the rear door manual lock,
using the power door lock switch, or the Remote
Keyless Entry (RKE) transmitter, if the vehicle
has one.
2. Open the door from the outside.
To cancel the rear door security lock, do the following:
1. Unlock the door and open it from the outside.
2. Insert the key into the security lock slot and turn it
so the slot is in the vertical position.
Lockout Protection
This feature protects you from locking the key in the
vehicle when the key is in the ignition and a front door
is open.
If the driver’s side power door lock switch is pressed
when the driver’s door is open and the key is in the
ignition, all of the doors will lock and then the driver’s
door will unlock.
If the passenger’s side power door lock switch is
pressed when the front passenger’s door is open and
the key is in the ignition, all of the doors will lock
and then the front passenger’s door will unlock.
Liftgate/Liftglass
{CAUTION:
It can be dangerous to drive with the liftglass or
liftgate open because carbon monoxide (CO) gas
can come into your vehicle. You cannot see or
smell CO. It can cause unconsciousness and even
death.
If you must drive with the liftglass or liftgate open, or
if electrical wiring or other cable connections must
pass through the seal between the body and the
liftglass or liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or cooling system
to its highest speed with the recirculation mode
off. That will force outside air into your vehicle.
SeeClimate Control System on page 3-22or
Dual Automatic Climate Control System on
page 3-25.
If you have air outlets on or under the
instrument panel, open them all the way.
If your vehicle has a power liftgate, disable the
power liftgate function.
SeeEngine Exhaust on page 2-46.
2-12

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

HEATING WASH FLUID WASH WIPES PENDING is
displayed on the DIC when the washer system is heating
the uid. WASHER FLUID LOW ADD FLUID is
displayed when the washer uid is low. SeeDIC
Warnings and Messages on page 3-64.
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):Turns the wiper off.
5(Rear Wiper Delay):Turns on the rear wiper delay.
Z(Rear Wiper):Turns on the rear wiper.
=(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.
3-11

To use an accessory power outlet, remove the protective
cap. When not in use, always cover the accessory
power outlet with the protective cap.
The accessory power outlets are powered, even with
the ignition off. Continuing to use accessory power
outlets while the ignition is in LOCK/OFF may cause the
vehicle’s battery to run down.
Notice:If electrical devices are left plugged into
a power outlet, the battery may drain causing the
vehicle not to start or damage to the battery. This
would not be covered by the warranty. Always unplug
all electrical devices when turning off the vehicle.
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 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 ammable items
are put in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage the vehicle. Never put ammable 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.
3-21

Climate Controls
Climate Control System
The heating, cooling, and ventilation in the vehicle can
be controlled with this system.
A. Fan Control
B. REAR
C. Recirculation
D. Air Delivery
Mode Control
E. Air ConditioningF. Driver and
Passenger
Temperature
Controls
G. Rear Window
DefoggerTemperature Control:Move the thumbwheels up or
down to increase or decrease the temperature on
the driver’s side or the passenger side of the vehicle for
the dual zone system.9(Fan Control):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Turn the knob all the way counterclockwise to turn the
front system off.
Air Delivery Mode Control:Turn clockwise or
counterclockwise to change the airow direction inside
the vehicle. By positioning the knob between two modes,
a combination of those modes is selected.
Select from the following modes:
H(Vent):Air is directed to the instrument panel
outlets.
3-22

h(Recirculation):Press this button to turn the
recirculation mode on or off. An indicator light comes on
to show that recirculation is on.
This mode recirculates and helps to quickly cool the air
inside the vehicle. It can be used to help prevent
outside air and odors from entering the vehicle.
The recirculation mode cannot be used with oor, defrost,
or defogging modes. If recirculation is selected while in
one of those modes, the indicator ashes three times and
turns off. The air conditioning compressor will also come
on when this mode is activated. While in recirculation
mode the windows may fog when the weather is cold and
damp. To clear the fog, select either the defog or defrost
mode and increase the fan speed. The recirculation mode
can also be turned off by turning off the engine.
REAR:Press to turn the rear heating and air
conditioning on. SeeRear Air Conditioning and Heating
System on page 3-31orRear Air Conditioning and
Heating System and Electronic Climate Controls
on page 3-33for more information.Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear Window Defogger):Press this button to
turn the rear window defogger on or off. The system
automatically turns off several minutes after it has been
activated. The defogger can also be turned off by turning
off the engine. Do not drive the vehicle until all the
windows are clear.
For vehicles with heated outside rearview mirrors, the
mirrors will heat to help clear fog or frost from the
surface of the mirror when the rear window defog button
is pressed.
Notice:Do not use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs would not be
covered by the vehicle warranty. Do not attach a
temporary vehicle license, tape, a decal or anything
similar to the defogger grid.
3-24

Dual Automatic Climate Control
System
The heating, cooling, and ventilation in the vehicle can
be controlled with this system. The vehicle also has
a ow-through ventilation system described later in this
section.
If this vehicle is a Two-mode Hybrid, see the Two-mode
Hybrid manual for more information.
A. Fan Control
B. AUTO
C. Defrost
D. Recirculation
E. REARF. Air Delivery
Mode Control
G. Driver Temperature
ControlH. Display
I. Power Button
J. Rear Window
DefoggerK. Air Conditioning
L. PASS
M. Passenger
Temperature Control
O(On/Off):Press to turn the climate control system on
or off. Outside air still enters the vehicle, and is
directed to the oor. This direction can be changed by
pressing the mode button. Recirculation can be selected
once you have selected vent or bi-level mode. 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 illuminates briey to show the settings
and then returns to off. The system can be turned back
on by pressing either
O,D,C,#, the defrost or
the AUTO button.
3-25