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Black plate (54,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
7-54 Infotainment System
Once connected, the person called
will be heard through the audio
speakers.
Using the“Re-dial”Command
1. Press and hold
b/gfor
two seconds.
2. After the tone, say “Re-dial.”
Once connected, the person called
will be heard through the audio
speakers.
Receiving a Call
When an incoming call is received,
the audio system mutes and a ring
tone is heard in the vehicle.
.Pressb/gto answer the call.
.Pressc/xto ignore a call.
Call Waiting
Call waiting must be supported on
the cell phone and enabled by the
wireless service carrier.
.Pressb/gto answer an
incoming call when another call
is active. The original call is
placed on hold.
.Pressb/gagain to return to
the original call.
.To ignore the incoming call, no
action is required.
.Pressc/xto disconnect the
current call and switch to the call
on hold.
Three-Way Calling
Three-way calling must be
supported on the cell phone and
enabled by the wireless service
carrier.
1. While on a call, press
b/g.
2. Say “Three-way call.”
3. Use the dial or call command to dial the number of the third party
to be called. 4. Once the call is connected,
press
b/gto link all callers
together.
Ending a Call
Pressc/xto end a call.
Muting a Call
During a call, all sounds from inside
the vehicle can be muted so that the
person on the other end of the call
cannot hear them.
.To mute a call, pressb/g, and
then say “Mute call.”
.To cancel mute, pressb/g,
and then say “Un-mute call.”
Transferring a Call
Audio can be transferred between
the Bluetooth system and the cell
phone.
The cell phone must be paired and
connected with the Bluetooth
system before a call can be

Black plate (55,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Infotainment System 7-55
transferred. The connection process
can take up to two minutes after the
ignition is turned to ON/RUN.
Transferring Audio from the
Bluetooth System to a Cell Phone
During a call with the audio in the
vehicle:
1. Press
b/g.
2. Say “Transfer Call.”
Transferring Audio to the
Bluetooth System from a Cell
Phone
During a call with the audio on the
cell phone, press
b/g. The audio
transfers to the vehicle. If the audio
does not transfer to the vehicle, use
the audio transfer feature on the cell
phone. See your cell phone
manufacturer's user guide for more
information.
Voice Pass-Thru
Voice pass-thru allows access to the
voice recognition commands on the
cell phone. See your cell phone
manufacturer's user guide to see if
the cell phone supports this feature.
To access contacts stored in the cell
phone:
1. Press and hold
b/gfor
two seconds.
2. Say “Bluetooth.” This command
can be skipped.
3. Say “Voice.” The system
responds “OK, accessing
.”
The cell phone's normal prompt
messages will go through their cycle
according to the phone's operating
instructions.
Dual Tone Multi-Frequency
(DTMF) Tones
The Bluetooth system can send
numbers and the numbers stored as
name tags during a call. You can use this feature when calling a
menu-driven phone system.
Account numbers can also be
stored for use.
Sending a Number or Name Tag
During a Call
1. Press
b/g. The system
responds “Ready,”followed by
a tone.
2. Say “Dial.”
3. Say the number or name tag to send.
Clearing the System
Unless information is deleted out of
the in-vehicle Bluetooth system, it
will be retained indefinitely. This
includes all saved name tags in the
phone book and phone pairing
information. For information on how
to delete this information, see the
previous section “Deleting a Paired
Phone” and the previous sections
on deleting name tags.

Black plate (56,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
7-56 Infotainment System
Other Information
The Bluetooth®word mark and
logos are owned by the Bluetooth®
SIG, Inc. and any use of such marks
by General Motors is under license.
Other trademarks and trade names
are those of their respective owners.
See Radio Frequency Statement on
page 13‑20 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Trademarks and
License Agreements
Manufactured under license under
U.S. Patent #'s: 5,451,942;
5,956,674; 5,974,380; 5,978,762;
6,487,535 & other U.S. and
worldwide patents issued &
pending. DTS and the Symbol are
registered trademarks and DTS
Digital Surround and the DTS logos
are trademarks of DTS Inc. All
Rights Reserved.
Manufactured under license from
Dolby Laboratories. Dolby and the
double-D symbol are trademarks of
Dolby Laboratories.

Black plate (92,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
9-92 Driving and Operating
exceeds the maximum amperage
rating of 40 amperes for the
auxiliary battery provision.
Trailer Wiring Harness
The vehicle is equipped with one of
the following wiring harnesses for
towing a trailer or hauling a slide-in
camper.
Basic Trailer Wiring
All regular, extended cab and crew
cab pickups have a seven-wire
trailer towing harness.
For vehicles not equipped with
heavy duty trailering, the harness is
secured to the vehicle's frame
behind the spare tire mount. The
harness requires the installation of a
trailer connector, which is available
through your dealer.
If towing a light-duty trailer with a
standard four-way round pin
connector, an adapter is available
from your dealer.Heavy-DutyTrailer Wiring Harness
Package
For vehicles equipped with heavy
duty trailering, the harness
connector is mounted in the bumper.
The seven-wire harness contains
the following trailer circuits:
.Yellow: Left Stop/Turn Signal
.Dark Green: Right Stop/Turn
Signal
.Brown: Taillamps
.White: Ground
.Light Green: Back-up Lamps
.Red: Battery Feed*
.Dark Blue: Trailer Brake*
*The fuses for these two circuits are
installed in the underhood electrical
center, but the wires are not
connected. They should be
connected by your dealer or a
qualified service center. The fuse
and wire for the ITBC is factory
installed and connected if the
vehicle is equipped with an ITBC.
The fuse for the battery feed is not
required if the vehicle has an
auxiliary battery. If the vehicle does
not have an auxiliary battery, have
your dealer or authorized service
center install the required fuse.
If charging a remote (non-vehicle)
battery, press the Tow/Haul Mode
button, if equipped, located at the
end of the shift lever. This will boost
the vehicle system voltage and
properly charge the battery. If the
trailer is too light for Tow/Haul
Mode, or the vehicle is not equipped
with Tow/Haul, turn on the

Black plate (93,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
Driving and Operating 9-93
headlamps as a second way to
boost the vehicle system and
charge the battery.
Camper/Fifth-Wheel Trailer Wiring
Package
The seven-wire camper harness is
located under the front edge of the
pickup box on the driver side of the
vehicle, attached to the frame
bracket. A connector must be added
to the wiring harness which
connects to the camper.
The harness contains the following
camper/trailer circuits:
.Yellow: Left Stop/Turn Signal
.Dark Green: Right Stop/Turn
Signal
.Brown: Taillamps
.White: Ground
.Light Green: Back-up Lamps
.Red: Battery Feed
.Dark Blue: Trailer Brake
If the vehicle is equipped with the
“Heavy-Duty Trailering”option,
please refer to “Heavy-Duty Trailer
Wiring Package” earlier in this
section.
When the camper-wiring harness is
ordered without the heavy-duty
trailering package, a seven-wire
harness with a seven-pin connector
is located at the rear of the vehicle
and is tied to the vehicle's frame.
Electric Brake Control Wiring
Provisions
These wiring provisions are
included with the vehicle as part of
the trailer wiring package. These
provisions are for an electric brake
controller. The instrument panel
contains blunt cut wires behind the
steering column for the trailer brake
controller. The harness contains the
following wires:
.Dark Blue: Brake Signal to
Trailer Connector
.Red/Black: Battery
.Light Blue/White: Brake Switch
.White: Ground
The harness should be installed by
your dealer or a qualified service
center.
If the vehicle is equipped with an
Integrated Trailer Brake Control
(ITBC) System, the blunt cuts exist,
but are not connected further in the
harness. If an aftermarket trailer
brake controller is installed, the

Black plate (2,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
i-2 INDEX
AuxiliaryDevices . . . . . . . . . . . . . . . . . . . . . . . 7-33
Roof Mounted Lamp . . . . . . . . . . . 6-6
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-29
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-30
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-27 Jump Starting . . . . . . . . . . . . . . . 10-82
Load Management . . . . . . . . . . . . . 6-9
Power Protection . . . . . . . . . . . . . . 6-9
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-37
Blade Replacement, Wiper . . . 10-33
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-49
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 9-23
System Warning Light . . . . . . . . 5-23
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-24 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-50
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-52
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-25
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-51
System Messages . . . . . . . . . . . . 5-38 Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-23
Bulb Replacement . . . . . . . . . . . . 10-38
Center High-MountedStoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . 10-37
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-6
Halogen Bulbs . . . . . . . . . . . . . . 10-34
Headlamp Aiming . . . . . . . . . . . 10-34
Headlamps . . . . . . . . . . . . . . . . . 10-34
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-35
License Plate Lamps . . . . . . . 10-37
Pick-up Box Identification and Fender Marker
Lamps . . . . . . . . . . . . . . . . . . . . 10-35
Taillamps . . . . . . . . . . . . . . . . . . . 10-36
Taillamps, Turn Signal, Stoplamps, and
Back-up Lamps . . . . . . . . . . . 10-36
Buying New Tires . . . . . . . . . . . . . 10-65
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-5
California Fuel Requirements . . . . . . . . . . . 9-66
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Camera, Rear Vision . . . . . . . . . . 9-60
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-31
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Winter Driving . . . . . . . . . . . . . . . . 9-12
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 6-7
Cautions, Danger, and
Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD Player . . . . . . . . . . . . . . . . . . . . . 7-17
CD/DVD Player . . . . . . . . . . . . . . . . 7-23
Center Console Storage . . . . . . . . 4-2
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 10-37
Center Seat . . . . . . . . . . . . . . . . . . . . 3-3
Chains, Tire . . . . . . . . . . . . . . . . . . 10-70

Black plate (9,1)GMC Sierra Owner Manual - 2013 - crc - 8/14/12
INDEX i-9
Overheated EngineProtection
Operating Mode . . . . . . . . . . . . . 10-22
Overheating, Engine . . . . . . . . . . 10-20
Overview, Infotainment
System . . . . . . . . . . . . . . . 7-3, 7-4, 7-6
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . 9-28
Shifting Out of . . . . . . . . . . . . . . . . 9-30
Tilt Mirrors . . . . . . . . . . . . . . . . . . . . 2-16
Parking Assist, Ultrasonic . . . . . . . . . . . . . 9-59
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-51
Brake and P (Park)Mechanism Check . . . . . . . . 10-33
Over Things That Burn . . . . . . . 9-30
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 5-19
Passenger Sensing System . . . 3-31
Perchlorate Materials Requirements, California . . . . . 10-3
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-46 Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-49
Pick-up Box Identification and Fender Marker
Lamps . . . . . . . . . . . . . . . . . . . . . . 10-35
Pickup Conversion to Chassis Cab . . . . . . . . . . . . . . . . 9-104
Power Door Locks . . . . . . . . . . . . . . . . . . . . 2-7
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Protection, Battery . . . . . . . . . . . . . 6-9
Retained Accessory (RAP) . . . 9-27
Seat Adjustment . . . . . . . . . . . . . . . 3-4
Steering Fluid . . . . . . . . . . . . . . . 10-23
Windows . . . . . . . . . . . . . . . . . . . . . 2-18
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Privacy Radio FrequencyIdentification (RFID) . . . . . . . 13-20
Program Courtesy Transportation . . . . 13-13
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . 10-2
R
Radio Frequency
Identification (RFID) . . . . . . . . 13-20
Statement . . . . . . . . . . . . . . . . . . 13-20
Radios AM-FM Radio . . . . . . . . . . . . . . . . . 7-10
CD/DVD Player . . . . . . . . . . . . . . . 7-23
Reception . . . . . . . . . . . . . . . . . . . . 7-15
Satellite . . . . . . . . . . . . . . . . . . . . . . . 7-12
Reading Lamps . . . . . . . . . . . . . . . . . 6-8
Rear Axle . . . . . . . . . . . . . . . . . . . . . 10-30 Locking . . . . . . . . . . . . . . . . . . . . . . . 9-55
Rear Doors . . . . . . . . . . . . . . . . . . . . . 2-8
Rear Seat Audio (RSA) System . . . . . . . . . . . . . . . . . . . . . . . 7-47
Rear Seat Entertainment
System . . . . . . . . . . . . . . . . . . . . . . . 7-38
Rear Seat Audio (RSA) . . . . . . . 7-47
Rear Seats . . . . . . . . . . . . . . . 3-9, 3-10
Rear Vision Camera (RVC) . . . . 9-60
Rear Windows . . . . . . . . . . . . . . . . . 2-19
Rearview Mirrors . . . . . . . . . . . . . . 2-16 Automatic Dimming . . . . . . . . . . . 2-17
Reclining Seatbacks . . . . . . . . . . . . 3-5
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-66