2006 GMC SIERRA radio controls

Playing a Cassette Tape
The tape player is built to work best with tapes that are up
to 30 to 45 minutes long on each side. Tapes longer than
that are so thin they may not work well in this player. The
longer side with the tape visible should face to the right. If
you hear nothing or hear a garbled sound, the tape may
not be in squarely. Press the eject button to remove the
tape and start over.
If the ignition and radio are off, the tape can be inserted,
but will not play until ignition and radio are on. If the
ignition is on and the radio is off, the tape can be inserted
and will begin playing.
While the tape is playing, use the VOL, AUDIO, and
SEEK controls just as you do for the radio. The cassette
tape symbol will appear on the display and an arrow
showing which side of the tape is playing. The tape
player will play the other side of the tape when it reaches
the end.
Cassette tape adapter kits for portable CD players will
work in the cassette tape player. See “CD Adapter Kits”
later for more information.
The tape bias is set automatically when a metal or
chrome tape is inserted.
If an error appears on the display, see “Cassette Tape
Messages” later in this section.1 PREV (Previous):The tape must have at least three
seconds of silence between each selection for previous
to work. Press this pushbutton to go to the previous
selection on the tape if the current selection has been
playing for less than three seconds. If pressed when
the current selection has been playing from three to
13 seconds, it will go to the beginning of the previous
selection or the beginning of the current selection,
depending on the position on the tape. If pressed when
the current selection has been playing for more than
13 seconds, it will go to the beginning of the current
selection.
SEEK and a negative number will appear on the display
while the cassette player is in the previous mode.
Pressing this pushbutton multiple times will increase the
number of selections to be searched back, up to−9.
2 NEXT:The tape must have at least three seconds of
silence between each selection for next to work. Press
this pushbutton to go to the next selection on the tape.
Pressing this pushbutton multiple times, in next mode,
will increase the number of selections to be searched
forward. SEEK and a positive number will appear on the
display.
3-94

Setting the Tone (Bass/Treble)
AUDIO:Push and release the AUDIO knob until BASS
or TREB appears on the display. Turn the knob to
increase or to decrease. The display will show the bass
or treble level. If a station is weak or noisy, decrease
the treble.
To adjust the bass or treble to the middle position while it
is displayed, push and hold the AUDIO knob. The radio
will produce one beep and adjust the display level to the
middle position.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone or
speaker controls are displayed. ALL CENTERED will
appear on the display and you will hear a beep.
AUTO EQ (Automatic Equalization):Press this button
to select customized equalization settings designed
for country/western, jazz, talk, pop, rock, and classical.
The radio will save separate AUTO EQ settings for
each preset and source.
If the radio is equipped with the Bose
®audio system,
the equalization settings are either CUSTOM or TALK.
Adjusting the Speakers (Balance/Fade)
AUDIO:To adjust the balance between the right
and the left speakers, push and release the AUDIO
knob until BAL appears on the display. Turn the knob
to move the sound toward the right or the left speakers.
To adjust the fade between the front and rear
speakers, push and release the AUDIO knob until FAD
appears on the display. Turn the knob to move the
sound toward the front or the rear speakers.
To adjust the balance or fade to the middle position
while it is displayed, push and hold the AUDIO knob.
The radio will produce one beep and adjust the display
level to the middle position.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone
or speaker controls are displayed. ALL CENTERED
will appear on the display and you will hear a beep.
3-103

DVD Distortion
There may be an experience with audio distortion in
the wireless headphones when operating cellular
phones, scanners, CB radios, Global Positioning
Systems (GPS)*, two-way radios, mobile fax, or
walkie talkies.
It may be necessary to turn off the DVD player when
operating one of these devices in or near the vehicle.
* Excludes the OnStar
®System.
Cleaning the Video Screen
Pour some isopropyl or rubbing alcohol on a clean cloth
and gently wipe the video screen. Do not spray directly
onto the screen and do not press too hard or too long on
the video screen.
Rear Seat Audio (RSA)
This feature allows rear seat passengers to listen to any
of the sources: radio, cassette tapes, CDs, or DVDs.
However, the rear seat passengers can only control the
sources that the front seat passengers are not listening
to. For example, rear seat passengers may listen to
and control cassette tapes, CDs, or DVDs through the
headphones while the driver listens to the radio through
the front speakers. The rear seat passengers have
control of the volume for each set of headphones.
The front seat audio controls always have priority over
the RSA controls. If the front seat passengers switch the
source for the main radio to a remote source, the RSA will
not be able to control the source. You can operate the
rear seat audio when the main radio is off.
3-127

P(Power):Press this button to turn the system on or
off. The rear speakers will be muted when the power is
turned on unless your vehicle is equipped with the Bose
®
audio system.
u(Volume):Turn this knob to increase or to
decrease the volume. The left knob controls the left
headphones and the right knob controls the right
headphones.
SRC (Source):Press this button to select a source:
radio, cassette tapes, CDs, or DVDs.
xSEEKw:When listening to FM1, FM2, or AM,
press the up or the down arrow to go to the next or to the
previous station and stay there. This function is inactive
if the front seat passengers are listening to the radio.
When a cassette tape is playing, press the up or the
down arrow to go to the next or the previous selection.
This function is inactive if the front seat passengers are
listening to a cassette tape.
When a CD is playing, press the up arrow to go to the
next track on the CD. Press the down arrow to go to the
start of the current track if more than eight seconds have
played. This function is inactive if the front seat
passengers are listening to a CD.
PROG (Program):Press this button to go to the next
preset radio station set on the pushbuttons on the main
radio. This function is inactive if the front seat passengers
are listening to the radio.
When a cassette tape is playing, press this button to go to
the other side of the tape. This function is inactive if the
front seat passengers are listening to a cassette tape.
When a CD is playing, press this button to go to the
beginning of the CD. This function is inactive if the front
seat passengers are listening to a CD.
When a CD is playing in the six-disc CD changer, press
this button to select the next CD, if multiple CDs are
loaded. This function is inactive if the front seat
passengers are listening to a CD.
3-128

Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of
your vehicle’s radio. The feature works automatically
by learning a portion of the Vehicle Identication
Number (VIN). If the radio is moved to a different vehicle,
it will not operate and LOCKED will appear on the display.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK
®is armed.
With THEFTLOCK
®activated, the radio will not operate
if stolen.
Audio Steering Wheel Controls
If your vehicle has this feature, some audio controls can
be adjusted at the steering wheel. They include the
following:
g(OnStar®/Mute):If your vehicle has OnStar, press
this button to interact with the OnStar system. See the
OnStar
®System on page 2-73in this manual for more
information.
If your vehicle does not have OnStar, press this button
to silence the system. Press it again, or any other radio
button, to turn on the sound.
3-129

A
Accessories and Modications............................ 5-4
Accessory Power Outlet(s)...............................3-20
Adding a Snow Plow or Similar Equipment.........4-54
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-86
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-123
Air Cleaner/Filter, Engine.................................5-25
Air Conditioning..............................3-21, 3-22, 3-25
Airbag
Off Light.....................................................3-35
Passenger Status Indicator...........................3-37
Readiness Light..........................................3-35
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-70
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-86
Airbag Off Switch........................................1-78
How Does an Airbag Restrain?......................1-76
Passenger Sensing System...........................1-81
Servicing Your Airbag-Equipped Vehicle..........1-86
What Makes an Airbag Inate?......................1-76
What Will You See After an Airbag Inates?....1-76
When Should an Airbag Inate?....................1-74
Where Are the Airbags?...............................1-72
AM-FM Radio.................................................3-72
Antenna, Fixed Mast......................................3-132
Antenna, XM™ Satellite Radio Antenna System . . . 3-133Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-42
Appearance Care
Aluminum or Chrome-Plated Wheels.............5-118
Care of Safety Belts...................................5-116
Chemical Paint Spotting..............................5-120
Cleaning Exterior Lamps/Lenses..................5-117
Cleaning the Inside of Your Vehicle..............5-113
Fabric/Carpet............................................5-114
Finish Care...............................................5-117
Finish Damage..........................................5-120
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-115
Leather....................................................5-115
Sheet Metal Damage..................................5-119
Tires........................................................5-119
Underbody Maintenance.............................5-120
Vehicle Care/Appearance Materials...............5-121
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-116
Windshield and Wiper Blades......................5-118
Ashtray(s)......................................................3-20
Audio System(s).............................................3-70
AM-FM Radio.............................................3-72
Audio Steering Wheel Controls....................3-129
Care of Your Cassette Tape Player...............3-131
Care of Your CD and DVD Player................3-132
Care of Your CDs and DVDs.......................3-132
Chime Level Adjustment.............................3-133
Fixed Mast Antenna...................................3-132
1

P
Park (P)
Shifting Into................................................2-53
Shifting Out of............................................2-55
Parking
Brake........................................................2-52
Over Things That Burn.................................2-56
Parking Your Vehicle.......................................2-56
Passenger Airbag Status Indicator.....................3-37
Passenger Sensing System..............................1-81
Passing.........................................................4-14
Passlock
®......................................................2-21
Pickup Conversion to Chassis Cab....................4-61
Power
Accessory Outlet(s)......................................3-20
Door Locks.................................................. 2-9
Electrical System.......................................5-123
Lumbar Controls........................................... 1-4
Retained Accessory (RAP)............................2-23
Seat............................................................ 1-4
Steering Fluid.............................................5-45
Windows....................................................2-17
Programmable Automatic Door Locks.................2-10
Q
Questions and Answers About Safety Belts.........1-15
R
Radios..........................................................3-70
AM-FM Radio.............................................3-72
Care of Your Cassette Tape Player...............3-131
Care of Your CD and DVD Player................3-132
Care of Your CDs and DVDs.......................3-132
Radio with Cassette and CD.........................3-85
Radio with CD............................................3-75
Radio with Six-Disc CD..............................3-100
Rear Seat Audio........................................3-127
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-71
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-71
Theft-Deterrent..........................................3-129
Understanding Reception............................3-130
Rear Axle......................................................5-58
Locking......................................................4-11
Rear Door Security Locks................................2-13
Rear Doors....................................................2-14
Rear Safety Belt Comfort Guides......................1-29
Rear Seat Audio (RSA)..................................3-127
Rear Seat Entertainment System.....................3-115
Rear Seat Operation...................................1-8, 1-9
Rear Seat Passengers, Safety Belts..................1-26
Rearview Mirror, Automatic Dimming with
Compass....................................................2-63
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-65
10

Securing a Child Restraint
Center Front Seat Position............................1-56
Rear Seat Position......................................1-54
Right Front Seat Position (Crew Cab).............1-57
Right Front Seat Position (Regular and
Extended Cab)................................1-59, 1-65
Security Light.................................................3-49
Service........................................................... 5-4
Accessories and Modications......................... 5-4
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-5
Engine Soon Light.......................................3-46
Publications Ordering Information...................7-15
Servicing Your Airbag-Equipped Vehicle..............1-86
Setting the Time
Radios with Radio Data Systems (RDS).........3-71
Radios without Radio Data Systems (RDS).....3-71
Sheet Metal Damage.....................................5-119
Shifting Into Park (P).......................................2-53
Shifting Out of Park (P)...................................2-55
Signals, Turn and Lane-Change.......................... 3-7
Sliding Rear Windows.....................................2-18
Snow Plow....................................................4-54
Spare Tire....................................................5-112
Installing....................................................5-96
Removing...................................................5-92
Storing.....................................................5-108
Specications, Capacities...............................5-133Speedometer..................................................3-33
Starting Your Engine.......................................2-23
Steering........................................................4-11
Steering Wheel Controls, Audio.......................3-129
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-79
Coinholder(s)..............................................2-79
Cupholder(s)...............................................2-79
Front Storage Area......................................2-79
Glove Box..................................................2-79
Stuck in Sand, Mud, Ice or Snow......................4-46
Sun Visors.....................................................2-18
Sunroof.........................................................2-82
Swing-Out Windows........................................2-18
T
Tachometer....................................................3-34
Tailgate.........................................................2-14
Taillamps
Turn Signal, Stoplamps and Back-up Lamps....5-68
Theft-Deterrent, Radio....................................3-129
Theft-Deterrent Systems...................................2-19
Content Theft-Deterrent................................2-19
Passlock
®...................................................2-21
Tilt Wheel........................................................ 3-6
Tires.............................................................5-72
12