2012 GMC SIERRA 1500 radio

Black plate (2,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
5-2 Instruments and Controls
Transmission Messages . . . . . 5-46
Vehicle ReminderMessages . . . . . . . . . . . . . . . . . . 5-47
Washer Fluid Messages . . . . . 5-48
Vehicle Personalization
Vehicle Personalization (With DIC Buttons) . . . . . . . . . . . . . . . 5-48
Universal Remote System
Universal Remote System . . . 5-56
Universal Remote SystemProgramming . . . . . . . . . . . . . . . 5-56
Universal Remote System Operation . . . . . . . . . . . . . . . . . . 5-61
Controls
Steering Wheel
Adjustment
The tilt lever is located on the lower
left side of the steering column.
To adjust the steering wheel:
1. Hold the steering wheel and pull
the lever.
2. Move the steering wheel up or down. 3. Release the lever to lock the
wheel in place.
Do not adjust the steering wheel
while driving.
Steering Wheel Controls
If equipped, some audio controls
can be adjusted at the steering
wheel.
w(Next): Press to go to the next
favorite radio station, track on
a CD, or folder on an iPod
®or USB
device.

Black plate (3,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Instruments and Controls 5-3
c/x(Previous/End):Press to
go to the previous favorite radio
station, track on a CD, or folder on
an iPod
®or USB device. Press to
reject an incoming call, or end a
current call.
Radio
To select preset or favorite radio
stations:
Press and release
worc/xto
go to the next or previous radio
station stored as a preset or
favorite.
CD/DVD
To select tracks on a CD/DVD:
Press and release
worc/xto
go to the next or previous track.
Selecting Tracks on an iPod or
USB Device (Vehicles without a
Navigation System)
1. Press and hold
worc/x
while listening to a song until the
contents of the current folder
display on the radio display. 2. Press and release
worc/x
to scroll up or down the list, then
press and hold
w, or press¨to
play the highlighted track.
Navigating Folders on an iPod or
USB Device (Vehicles without a
Navigation System):
1. Press and hold
worc/x
while listening to a song until the
contents of the current folder
display on the radio display.
2. Press and hold
c/xto go
back to the previous folder list.
3. Press and release
worc/x
to scroll up or down the list.
.To select a folder,
press and hold
w, or press
¨when the
folder is highlighted.
.To go back further in the
folder list, press and
hold
c/x. Navigating an iPod or USB Device
on the Main Audio Screen
(Vehicles with a Navigation
System)
1. Press and release
worc/x
to select the next or previous
track within the selected
category.
2. Press and hold
worc/xto
move quickly through the tracks.
3. Press and release
¨to move up
one track within the selected
category.
Navigating an iPod or USB Device
on the Music Navigator Screen
(Vehicles with a Navigation
System)
1. Press and release
worc/x
to select the next or previous
track within the selected
category.
2. Press and hold
worc/xto
move quickly through the tracks
within the selected category.

Black plate (4,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
5-4 Instruments and Controls
3. Press and release¨to move up
one track within the selected
category.
b/g(Mute/Push to Talk): Press
to silence the vehicle speakers only.
Press again to turn the sound on.
For vehicles with Bluetooth or
OnStar systems, press and hold for
longer than two seconds to interact
with those systems. See Bluetooth
on page 7‑48 andOnStar Overview
on page 14‑1 for more information.
SRCE (Source/Voice
Recognition): Press to switch
between the radio and CD, and for
equipped vehicles, the DVD, front
auxiliary, and rear auxiliary.
For vehicles with the navigation
system, press and hold this button
for longer than one second to
initiate voice recognition. See “Voice
Recognition” in the Navigation
System manual for more
information.
¨(Seek): Press to go to the
next radio station while in AM,
FM, or XM™.
For vehicles with or without a
navigation system:
Press
¨to go to the next track or
chapter while sourced to the CD or
DVD slot.
Press
¨to select a track or a folder
when navigating folders on an iPod
or USB device.
For vehicles with a navigation
system:
1. Press and hold
¨until a beep is
heard, to place the radio into
SCAN mode. A station will play
for five seconds before moving
to the next station.
2. To stop the SCAN function, press
¨again. While listening to a CD/DVD, press
and hold
¨to quickly move forward
through the tracks. Release to stop
on the desired track.
+
e: Press to increase volume.
−
e: Press to decrease volume.
Horn
To sound the horn, press the center
pad on the steering wheel.
Windshield Wiper/Washer
The front wiper control is located on
the turn and lane‐change lever.
The windshield wipers are controlled
by turning the band with
zon it.

Black plate (7,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Instruments and Controls 5-7
To calibrate the compass, use the
following procedure:
Compass Calibration Procedure
1. Before calibrating the compass,make sure the compass zone is
set to the variance zone in which
the vehicle is located. See
“Compass Variance (Zone)
Procedure” earlier in this
section.
Do not operate any switches
such as window, sunroof,
climate controls, or seats during
the calibration procedure.
2. Press the vehicle information button until PRESS
VTO
CALIBRATE COMPASS
displays. Or, if the vehicle does
not have DIC buttons, press the
trip odometer reset stem until
CALIBRATE COMPASS
displays. 3. Press the set/reset button to
start the compass calibration.
Or, if the vehicle does not have
DIC buttons, press and hold the
trip odometer reset stem for
two seconds to start the
compass calibration.
4. The DIC will display CALIBRATING: DRIVE IN
CIRCLES. Drive the vehicle
in tight circles at less than
8 km/h (5 mph) to complete the
calibration. The DIC will display
CALIBRATION COMPLETE
for a few seconds when the
calibration is complete. The DIC
display will then return to the
previous menu.
Clock
AM-FM Radio and AM‐FM
Radio with CD Player
To set the clock:
1. Turn the ignition key to ACC/
ACCESSORY or ON/RUN, then
press the
Obutton to turn the
radio on.
2. Press the
Hbutton until the hour
numbers begin to flash, then
turn the
fknob to increase or
decrease the hour.
3. Press the
Hbutton until the
minute numbers begin to flash,
then turn the
fknob to increase
or decrease the minutes.
4. Press the
Hbutton until the
12HR or 24HR time format
begins to flash, then turn
the
fknob to change the time
format.

Black plate (8,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
5-8 Instruments and Controls
5. Press theHbutton again until
the clock display stops flashing
to set the currently displayed
time, or wait until the flashing
stops after five seconds and the
current time displayed
automatically sets.
MP3 Radios with a Single CD
or a Single CD and DVD Player
To adjust the time and date:
1. Turn the ignition key to ACC/ ACCESSORY or ON/RUN, then
press the
Obutton to turn the
radio on.
2. Press the
Hbutton to display
HR, MIN, MM, DD, YYYY (hour,
minute, month, day, and year).
3. Press the softkey located under any one of the tabs to change
that setting. 4. To increase the time or date, do
one of the following:
.Press the softkey below the
selected tab.
.Press the¨SEEK button.
.Press the\FWD button.
.Turn thefknob clockwise.
5. To decrease the time or date, do one of the following:
.Press the©SEEK button.
.Press thesREV button.
.Turn thefknob
counterclockwise. To change the time default setting
from 12 hour to 24 hour or to change
the date default setting from month/
day/year to day/month/year:
1. Press the
Hbutton and then
the softkey located below the
forward arrow tab. 12H, 24H, the
date MM/DD (month and day),
and DD/MM (day and month)
displays.
2. Press the softkey located below the desired option.
3. Press the
Hbutton again to
apply the desired option, or let
the screen time out.
MP3 Radio with a Six-Disc CD
Player
To set the time and date:
1. Turn the ignition key to ACC/ ACCESSORY or ON/RUN, then
press the
Obutton to turn the
radio on.

Black plate (17,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Instruments and Controls 5-17
When the engine is running, this
gauge shows the condition of the
charging system. The gauge can
transition from a higher to lower or a
lower to higher reading. This is
normal. If the vehicle is operating
outside the normal operating range,
the charging system light comes on.
SeeCharging System Light on
page 5‑22 for more information. The
voltmeter gauge may also read
lower when in fuel economy mode.
This is normal.
Readings outside the normal
operating range can also occur
when a large number of electrical
accessories are operating in the
vehicle and the engine is left idling
for an extended period. This
condition is normal since the
charging system is not able to
provide full power at engine idle. As engine speeds are increased,
this condition should correct itself as
higher engine speeds allow the
charging system to create maximum
power.
The vehicle can only be driven for a
short time with the readings outside
the normal operating range. If the
vehicle must be driven, turn off all
accessories, such as the radio and
air conditioner.
Readings outside the normal
operating range indicate a possible
problem in the electrical system.
Have the vehicle serviced as soon
as possible.Safety Belt Reminders
Driver Safety Belt Reminder
Light
There is a driver safety belt
reminder light on the instrument
panel cluster.
When the vehicle is started, this
light flashes and a chime may come
on to remind the driver to fasten
their safety belt. Then the light stays
on solid until the belt is buckled.
This cycle my continue several
times if the driver remains or
becomes unbuckled while the
vehicle is moving.
If the driver safety belt is buckled,
neither the light nor the chime
comes on.

Black plate (22,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
5-22 Instruments and Controls
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 5‑39 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.Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors the operation
of the vehicle to ensure emissions
are at acceptable levels, to produce
a cleaner environment. This light
comes on when the vehicle is
placed in ON/RUN, as a check to
show it is working. If it does not,
have the vehicle serviced by your
dealer. See
Ignition Positions on
page 9‑26.

Black plate (28,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
5-28 Instruments and Controls
When the Light Is On Steady
This indicates that one or more
of the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. SeeTire Messages on
page 5‑45. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information label. See
Tire Pressure on page 10‑58.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition
cycle. See Tire Pressure Monitor
Operation on page 10‑62.Engine Oil Pressure Light
Notice: Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine
oil low can also damage the
engine. The repairs would not be
covered by the vehicle warranty.
Check the oil level as soon as
possible. Add oil if required,
but if the oil level is within the
operating range and the oil
pressure is still low, have the
vehicle serviced. Always follow
the maintenance schedule for
changing engine oil.
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally the indicator light then
goes off. If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and it might
have some other system problem.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Low Fuel Warning Light
This light, under the fuel gauge,
comes on briefly while the engine is
being started.
This light and a chime, if the vehicle
is equipped with a radio, comes on
when the fuel tank is low on fuel.
The Driver Information Center also
displays a FUEL LEVEL LOW
message. See
Fuel System
Messages on page 5‑43 for more