2012 GMC YUKON lights

Black plate (11,1)GMC Yukon/Yukon XL Owner Manual - 2012
Instruments and Controls 5-11
Warning Lights,
Gauges, and
Indicators
Warning lights and gauges 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 gauges could
prevent injury.Warning lights come on when there
could be a problem with a vehicle
function. Some warning lights come
on briefly when the engine is started
to indicate they are working.
Gauges can indicate when there
could be a problem with a vehicle
function. Often gauges 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 gauges
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.

Black plate (20,1)GMC Yukon/Yukon XL Owner Manual - 2012
5-20 Instruments and Controls
Then, after several more seconds,
the status indicator will light either
ON or OFF, or either the on or off
symbol to let you know the status of
the right front passenger frontal
airbag.
If the word ON or the on symbol is
lit on the passenger airbag status
indicator, it means that the right
front passenger frontal airbag is
enabled (may inflate).
If the word OFF or the off symbol is
lit on the airbag status indicator, it
means that the passenger sensing
system has turned off the right front
passenger frontal airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer for service.{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light on page 5‑18 for more
information, including important
safety information.
Charging System Light
This light comes on briefly when the
ignition key is turned to START, but
the engine is not running, as a
check to show it is working. If it does not, have the vehicle
serviced by your dealer.
The light should go out once the
engine starts. If it stays on,
or comes on while driving, there
could be a problem with the
charging system. A charging system
message in the Driver Information
Center (DIC) can also appear. See
Battery Voltage and Charging
Messages on page 5‑38
for more
information. This light could indicate
that there are problems with a
generator drive belt, or that there is
an electrical problem. Have it
checked right away. If the vehicle
must be driven a short distance with
the light on, turn off accessories,
such as the radio and air
conditioner.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.

Black plate (49,1)GMC Yukon/Yukon XL Owner Manual - 2012
Instruments and Controls 5-49
AUTO DOOR UNLOCK
This feature allows you to select
whether or not to turn off the
automatic door unlocking feature.
It also allows you to select which
doors and when the doors will
automatically unlock. SeeAutomatic
Door Locks on page 2‑8 for more
information.
Press the customization button until
AUTO DOOR UNLOCK appears on
the DIC display. Press the set/reset
button once to access the settings
for this feature. Then press the
customization button to scroll
through the following settings:
OFF: None of the doors will
automatically unlock.
DRIVER AT KEY OUT: Only the
driver door will unlock when the key
is taken out of the ignition.
DRIVER IN PARK: Only the driver
door will unlock when the vehicle is
shifted into P (Park) . ALL AT KEY OUT:
All of the doors
will unlock when the key is taken
out of the ignition.
ALL IN PARK (default): All of the
doors will unlock when the vehicle is
shifted into P (Park).
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
REMOTE DOOR LOCK
This feature allows you to select the
type of feedback you will receive
when locking the vehicle with the
Remote Keyless Entry (RKE)
transmitter. You will not receive
feedback when locking the vehicle
with the RKE transmitter if the doors
are open. See Remote Keyless
Entry (RKE) System Operation on
page 2‑3 for more information. Press the customization button until
REMOTE DOOR LOCK appears on
the DIC display. Press the set/reset
button once to access the settings
for this feature. Then press the
customization button to scroll
through the following settings:
OFF:
There will be no feedback
when you press the lock button on
the RKE transmitter.
LIGHTS ONLY: The exterior lamps
will flash when you press the lock
button on the RKE transmitter.
HORN ONLY: The horn will sound
on the second press of the lock
button on the RKE transmitter.
HORN & LIGHTS (default): The
exterior lamps will flash when you
press the lock button on the RKE
transmitter, and the horn will sound
when the lock button is pressed
again within five seconds of the
previous command.

Black plate (50,1)GMC Yukon/Yukon XL Owner Manual - 2012
5-50 Instruments and Controls
NO CHANGE:No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
REMOTE DOOR UNLOCK
This feature allows you to select the
type of feedback you will receive
when unlocking the vehicle with the
Remote Keyless Entry (RKE)
transmitter. You will not receive
feedback when unlocking the
vehicle with the RKE transmitter if
the doors are open. See Remote
Keyless Entry (RKE) System
Operation on page 2‑3 for more
information.
Press the customization button until
REMOTE DOOR UNLOCK appears
on the DIC display. Press the set/
reset button once to access the settings for this feature. Then press
the customization button to scroll
through the following settings:
LIGHTS OFF:
The exterior lamps
will not flash when you press the
unlock button on the RKE
transmitter.
LIGHTS ON (default): The exterior
lamps will flash when you press the
unlock button on the RKE
transmitter.
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC. DELAY DOOR LOCK
This feature allows you to select
whether or not the locking of the
vehicle's doors and liftgate will be
delayed. When locking the doors
and liftgate with the power door lock
switch and a door or the liftgate is
open, this feature will delay locking
the doors and liftgate until
five seconds after the last door is
closed. You will hear three chimes
to signal that the delayed locking
feature is in use. The key must be
out of the ignition for this feature to
work. You can temporarily override
delayed locking by pressing the
power door lock switch twice. See
Delayed Locking on page 2‑8
for
more information.
Press the customization button until
DELAY DOOR LOCK appears on
the DIC display. Press the set/reset
button once to access the settings

Black plate (51,1)GMC Yukon/Yukon XL Owner Manual - 2012
Instruments and Controls 5-51
for this feature. Then press the
customization button to scroll
through the following settings:
OFF:There will be no delayed
locking of the vehicle's doors.
ON (default): The doors will not
lock until 5 seconds after the last
door or the liftgate is closed.
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
EXIT LIGHTING
This feature allows you to select the
amount of time you want the
exterior lamps to remain on when it
is dark enough outside. This
happens after the key is turned from
ON/RUN to LOCK/OFF. Press the customization button until
EXIT LIGHTING appears on the DIC
display. Press the set/reset button
once to access the settings for this
feature. Then press the
customization button to scroll
through the following settings:
OFF:
The exterior lamps will not
turn on.
30 SECONDS (default): The
exterior lamps will stay on for
30 seconds.
1 MINUTE: The exterior lamps will
stay on for 1 minute.
2 MINUTES: The exterior lamps will
stay on for 2 minutes.
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC. APPROACH LIGHTING
This feature allows you to select
whether or not to have the exterior
lights turn on briefly during low light
periods after unlocking the vehicle
using the Remote Keyless Entry
(RKE) transmitter.
Press the customization button until
APPROACH LIGHTING appears on
the DIC display. Press the set/reset
button once to access the settings
for this feature. Then press the
customization button to scroll
through the following settings:
OFF:
The exterior lights will not
turn on when you unlock the vehicle
with the RKE transmitter.
ON (default): If it is dark enough
outside, the exterior lights will turn
on briefly when you unlock the
vehicle with the RKE transmitter.

Black plate (52,1)GMC Yukon/Yukon XL Owner Manual - 2012
5-52 Instruments and Controls
The lights will remain on for
20 seconds or until the lock button
on the RKE transmitter is pressed,
or the vehicle is no longer off. See
Remote Keyless Entry (RKE)
System Operation on page 2‑3for
more information.
NO CHANGE : No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
CHIME VOLUME
This feature allows you to select the
volume level of the chime.
Press the customization button until
CHIME VOLUME appears on the
DIC display. Press the set/reset
button once to access the settings
for this feature. Then press the
customization button to scroll
through the following settings:
NORMAL: The chime volume will
be set to a normal level. LOUD:
The chime volume will be
set to a loud level.
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
There is no default for chime
volume. The volume will stay at the
last known setting.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
PARK TILT MIRRORS
If your vehicle has this feature, it
allows you to select whether or not
the outside mirror(s) will
automatically tilt down when the
vehicle is shifted into R (Reverse).
See Park Tilt Mirrors on page 2‑19
for more information.
Press the customization button until
PARK TILT MIRRORS appears on
the DIC display. Press the set/reset
button once to access the settings for this feature. Then press the
customization button to scroll
through the following settings:
OFF (default):
Neither outside
mirror will be tilted down when the
vehicle is shifted into R (Reverse).
DRIVER MIRROR: The driver
outside mirror will be tilted down
when the vehicle is shifted into
R (Reverse).
PASSENGER MIRROR: The
passenger outside mirror will be
tilted down when the vehicle is
shifted into R (Reverse).
BOTH MIRRORS: The driver and
passenger outside mirrors will be
tilted down when the vehicle is
shifted into R (Reverse).
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.

Black plate (59,1)GMC Yukon/Yukon XL Owner Manual - 2012
Instruments and Controls 5-59
.If a switch is set between
the up and down position,
write“Middle.”
The switch settings written
down in Step 2 now
become the button strokes
to be entered into the
Universal Home Remote in
Step 4. Be sure to enter the
switch settings written down
in Step 2, in order from left
to right, into the Universal
Home Remote, when
completing Step 4.
3. From inside your vehicle, first firmly press all three buttons at
the same time for about
three seconds. Release the
buttons to put the Universal
Home Remote into
programming mode.
A. Left Button (Up, +, or On)
B. Middle Button (Middle, 0,or Neutral)
C. Right Button (Down, −,
or Off)
4. The indicator lights will blink slowly. Enter each switch 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 (A) in the
vehicle.
.If you wrote “Right,”press
the right button (C) in the
vehicle.
.If you wrote “Middle,”press
the middle button (B) in the
vehicle.
5. After entering all of the switch positions, once 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.

Black plate (60,1)GMC Yukon/Yukon XL Owner Manual - 2012
5-60 Instruments and Controls
7. Immediately release the buttonwhen 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.Universal Remote System
Operation
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.
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 settings 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 13‑3.