lights GMC YUKON XL 2010 User Guide

B (ACC/ACCESSORY):This position lets things like
the radio and the windshield wipers operate while the
engine is off. Use this position if the vehicle must be
pushed or towed.
C (ON/RUN): This position can be used to operate the
electrical accessories and to display some instrument
panel cluster warning and indicator lights. The switch
stays in this position when the engine is running.
The transmission is also unlocked in this position
on automatic transmission vehicles.
If you leave the key in the ACC/ACCESSORY or
ON/RUN position with the engine off, the battery could
be drained. You may not be able to start the vehicle if
the battery is allowed to drain for an extended period
of time.
D (START): This is the position that starts the engine.
When the engine starts, release the key. The ignition
switch returns to ON/RUN for driving.
A warning tone will sound when the driver door is
opened, the ignition is in ACC/ACCESSORY or
LOCK/OFF and the key is in the ignition.Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to
10 minutes after the engine is turned off:
.Audio System
.Power Windows
.OnStar®System (if equipped)
.Sunroof (if equipped)
These features work when the key is in ON/RUN
or ACC/ACCESSORY. Once the key is turned from
ON/RUN to LOCK/OFF, the windows and sunroof
continue to work up to 10 minutes until any door
is opened. The radio continues to work for up to
10 minutes or until the driver door is opened.
Starting the Engine
If the vehicle is a Two-mode Hybrid, see the Two-mode
Hybrid manual for more information.
Move the shift lever to P (Park) or N (Neutral).
The engine will not start in any other position. To restart
the engine when the vehicle is are already moving,
use N (Neutral) only.
Notice: Do not try to shift to P (Park) if the
vehicle is moving. If you do, you could damage
the transmission. Shift to P (Park) only when the
vehicle is stopped.
3-29

Four-Wheel Drive (Two Speed
Automatic Transfer Case)
If the vehicle has four-wheel drive, you can send the
engine's driving power to all four wheels for extra
traction. Read the following before using four-wheel
drive.
Notice:Driving on clean, dry pavement in
Four-Wheel Drive High or Four-Wheel Drive Low for
an extended period of time may cause premature
wear on your vehicle's powertrain. Do not drive on
clean, dry pavement in Four-Wheel Drive High or
Four-Wheel Drive Low for extended periods of time.
While driving on clean dry pavement and during tight
turns, you may experience a vibration in the steering
system.
The vehicle has StabiliTrak
®. Shifting into
Four-Wheel-Drive Low will turn Traction Control and
StabiliTrak
®off. See StabiliTrak®System on page 5‑6.
Front Axle
The front axle engages and disengages automatically
when you shift the transfer case. Some delay for the
axle to engage or disengage is normal.
Automatic Transfer Case
The transfer case knob is
located to the left of the
instrument panel cluster.
Use this dial to shift into and out of four-wheel drive.
You can choose among five driving settings:
Indicator lights in the switches show you which setting
you are in. The indicator lights will come on briefly when
you turn on the ignition and the last chosen setting will
stay on. If the lights do not come on, you should take
the vehicle to your dealer for service. An indicator light
will flash while shifting. It will stay on when the shift is
completed. If for some reason the transfer case cannot
make a requested shift, it will return to the last chosen
setting.
3-41

Automatic Transfer Case
The transfer case knob is
located to the left of the
instrument panel cluster.
Use this dial to shift into and out of four-wheel drive.
The vehicle has Four-Wheel-Drive with StabiliTrak
®.
For information on StabiliTrak®, see StabiliTrak®Systemon page 5‑6.
You can choose among three driving settings:
Indicator lights in the switch show you which setting you
are in. The indicator lights will come on briefly when you
turn on the ignition and the last chosen setting will stay
on. If the lights do not come on, you should take the
vehicle to your dealer for service. An indicator light will flash while shifting. It will stay on when the shift is
completed. If for some reason the transfer case cannot
make a requested shift, it will return to the last chosen
setting.
2
m(Two-Wheel Drive High):
This setting is used for
driving in most street and highway situations. The front
axle is not engaged in two-wheel drive. This setting also
provides the best fuel economy.
AUTO (Automatic Four-Wheel Drive): This setting is
ideal for use when road surface traction conditions are
variable. When driving the vehicle in AUTO, the front
axle is engaged, but the vehicle's power is primarily
sent to the rear wheels. When the vehicle's software
determines a need for more traction, the system will
transfer more power to the front wheels. Driving in
this mode results in slightly lower fuel economy than
Two-Wheel Drive High.
4
m(Four-Wheel Drive High): Use the four-wheel
high position when you need extra traction, such as
on snowy or icy roads or in most off-road situations.
This setting also engages the front axle to help drive
the vehicle. This is the best setting to use when
plowing snow.
3-47

When the System Does Not Seem To
Work Properly
The rear vision camera system might not work properly
or display a clear image if:
.The RVC is turned off. See“Turning the Rear
Camera System On or Off” earlier in this section.
.It is dark.
.The sun or the beam of headlights is shining
directly into the camera lens.
.Ice, snow, mud, or anything else builds up on the
camera lens. Clean the lens, rinse it with water,
and wipe it with a soft cloth.
.The back of the vehicle is in an accident, the
position and mounting angle of the camera can
change or the camera can be affected. Be sure to
have the camera and its position and mounting
angle checked at your dealer. The rear vision camera system display in the rearview
mirror may turn off or not appear as expected due to
one of the following conditions. If this occurs the left
indicator light on the mirror will flash.
.A slow flash may indicate a loss of video signal,
or no video signal present during the reverse cycle.
.A fast flash may indicate that the display has
been on for the maximum allowable time during a
reverse cycle, or the display has reached an Over
Temperature limit.
The fast flash conditions are used to protect the
video device from high temperature conditions.
Once conditions return to normal the device will
reset and the green indicator will stop flashing.
During any of these fault conditions, the display will be
blank and the indicator will continue to flash as long as
the vehicle is in R (Reverse) or until the conditions
return to normal.
Pressing and holding
zwhen the left indicator light is
flashing will turn off the video display along with the left
indicator light.
3-68

Universal Home Remote
System
SeeRadio Frequency Statementon page 8‑19for information regarding Part 15 of the Federal
Communications Commission (FCC) Rules and
RSS-210/211 of Industry Canada.
Universal Home Remote System
Operation (With Three Round LED)
This 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 assist with
programming the transmitter.
Be sure to keep the original remote control transmitter
for use in other vehicles, as well as, for future
programming. Only the original remote control
transmitter is needed for Fixed Code programming.
The programmed buttons should be erased when
the vehicle is sold or the lease ends. See
“Erasing
Universal Home Remote Buttons” later in this section.
Park the vehicle outside of the garage when
programming a garage door. Be sure that people
and objects are clear of the garage door or gate that
is being programmed.
3-69

4. The indicator lights will blink slowly. Enter eachswitch setting from Step 2 into your vehicle's
Universal Home Remote. You will have two and
one-half minutes to complete Step 4. Now press
one button on the Universal Home Remote for
each switch setting as follows:
.If you wrote “Left,”press the left button in the
vehicle.
.If you wrote “Right,”press the right button in
the vehicle.
.If you wrote “Middle,”press the middle button in
the vehicle. 5. After entering all of the switch positions, again,
firmly press and release all three buttons at the
same time. The indicator lights will turn on.
6. Press and hold the button that will be used to control the garage door until the garage door
moves. The indicator light above the selected
button should slowly blink. This button may need
to be held for up to 55 seconds.
7. Immediately release the button when the garage door moves. The indicator light will blink rapidly
until programming is complete.
8. Press and release the same button again. The garage door should move, confirming that
programming is successful and complete.
To program another Fixed Code device such as an
additional garage door opener, a security device,
or home automation device, repeat Steps 1-8, choosing
a different button in Step 6 than what was used for the
garage door opener.
Using Universal Home Remote
Press and hold the appropriate button for at least
half of a second. The indicator light will come on while
the signal is being transmitted.
3-74

Reprogramming Universal Home
Remote Buttons
Any of the three buttons can be reprogrammed by
repeating the instructions.
Erasing Universal Home Remote
Buttons
The programmed buttons should be erased when the
vehicle is sold or the lease ends.
To erase either Rolling Code or Fixed Code on the
Universal Home Remote device:1. Press and hold the two outside buttons at the same time for approximately 20 seconds, until the
indicator lights, located directly above the buttons,
begin to blink rapidly.
2. Once the indicator lights begin to blink, release both buttons. The codes from all buttons will be
erased.
For help or information on the Universal Home Remote
System, call the customer assistance phone number
under Customer Assistance Offices on page 8‑6.
Storage Areas
Glove Box
Lift up on the glove box lever to open it.
Cupholders
For vehicles with cupholders located in the front and
rear of the floor console or in the fold down armrest,
adjust the front cupholders by moving the insert forward
or rearward.
Pull downward on the lid to access the rear floor
console cupholders.
3-75

Section 4 Instrument Panel
Instrument Panel Overview. . . . . . . . . . . . . . . . . . . . . . . .4-3
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . . . 4-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tilt Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . 4-4
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . 4-4
Headlamp High/Low-Beam Changer . . . . . . . . . . . . 4-5
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Windshield Wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Windshield Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . 4-7
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Headlamps on Reminder . . . . . . . . . . . . . . . . . . . . . . . 4-11
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 4-11
Automatic Headlamp System . . . . . . . . . . . . . . . . . . 4-12
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Auxiliary Roof-Mounted Lamp . . . . . . . . . . . . . . . . . 4-13
Instrument Panel Brightness . . . . . . . . . . . . . . . . . . . 4-14
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Dome Lamp Override . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Electric Power Management . . . . . . . . . . . . . . . . . . . 4-15 Battery Run-Down Protection . . . . . . . . . . . . . . . . . . 4-16
Accessory Power Outlet(s) . . . . . . . . . . . . . . . . . . . . . 4-16
Ashtray(s) and Cigarette Lighter . . . . . . . . . . . . . . . 4-17
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Dual Automatic Climate Control System . . . . . . . 4-20
Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
Rear Air Conditioning and Heating System . . . . 4-27
Rear Air Conditioning and Heating System and
Electronic Climate Controls . . . . . . . . . . . . . . . . . . 4-28
Warning Lights, Gauges, and Indicators . . . . . . . .4-29
Instrument Panel Cluster . . . . . . . . . . . . . . . . . . . . . . . 4-30
Speedometer and Odometer . . . . . . . . . . . . . . . . . . . 4-31
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Safety Belt Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Airbag Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Passenger Airbag Status Indicator . . . . . . . . . . . . . 4-33
Charging System Light . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Brake System Warning Light . . . . . . . . . . . . . . . . . . . 4-36
Antilock Brake System (ABS) Warning Light . . . 4-37
StabiliTrak
®Indicator Light . . . . . . . . . . . . . . . . . . . . . 4-38
Engine Coolant Temperature Gauge . . . . . . . . . . . 4-38
4-1

Exterior Lamps
The exterior lamps
control is located on the
instrument panel to the
left of the steering wheel.
It controls the following systems:
.Headlamps
.Taillamps
.Parking Lamps
.License Plate Lamps
.Instrument Panel Lights
The exterior lamps control has four positions:
O(Off): Turns off the automatic headlamps and
daytime running lamps (DRL). Turning the headlamp
control to the off position again turns the automatic
headlamps or DRL back on.
For vehicles first sold in Canada, the off position only
works for vehicles that are shifted into the P (Park)
position. AUTO (Automatic):
Automatically turns on the
headlamps at normal brightness, together with the
following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
; (Parking Lamps): Turns on the parking lamps
together with the following:
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
2 (Headlamps): Turns on the headlamps together with
the following lamps listed below.
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
4-10

When the headlamps are turned on while the vehicle is
on, the headlamps will turn off automatically 10 minutes
after the ignition is turned off. When the headlamps are
turned on while the vehicle is off, the headlamps will
stay on for 10 minutes before automatically turning off
to prevent the battery from being drained. Turn the
headlamp control to off and then back to the headlamp
on position to make the headlamps stay on for an
additional 10 minutes.
Headlamps on Reminder
A reminder chime will sound when the headlamps or
parking lamps are manually turned on and the ignition
is off and a door is open. To disable the chime, turn the
light off.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional daytime running lamps are required on
all vehicles first sold in Canada.The DRL system comes on when the following
conditions are met:
.The ignition is on.
.The exterior lamps control is in AUTO.
.The engine is running.
.The light sensor determines it is daytime.
When the DRL system is on, only the DRL lamps are
on. The taillamps, sidemarker, instrument panel lights,
and other lamps will not be on.
When it begins to get dark, the automatic headlamp
system switches from DRL to the headlamps.
To turn off the DRL lamps, turn the exterior lamps
control to the OFF position and then release.
For vehicles first sold in Canada, the transmission
must be in the P (Park) position, before the DRL lamps
can be turned off.
4-11