
Compact Disc Messages
If the disc comes out, it could be for one of the following
reasons:
•You’re driving on a very rough road. When the road
becomes smoother the disc should play.
•It’s very hot. When the temperature returns to
normal, the disc should play.
•The disc is dirty, scratched, wet or upside down.
•The air is very humid. If so, wait about an hour and
try again.
•There may have been a problem while burning
the CD.
•The label may be caught in the CD player.
If the CD is not playing correctly, for any other reason,
try a known good CD.
If any error occurs repeatedly or if an error can’tbe
corrected, contact your dealer.
Navigation/Radio System
The display screen is located in the center of the
instrument panel. There are“hard”buttons and a touch
sensitive screen.
Your vehicle may be equipped with an AM-FM radio
navigation radio system that includes digital sound
processing (DSP), Radio Data System (RDS) with
program“type”selections (PTY) that will seek out the
kind of music you want to listen to and XM™Satellite
Radio Service capabilities (United States only).Navigation/Radio Display and Controls
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2003 - Sierra Denali

The radio system can also communicate with your
navigation system to broadcast announcements
on traffic, weather and emergency alert communications.
For information on how to use this system, see the
“Navigation/Radio System Supplement”.
Rear Seat Audio (RSA)
This feature allows rear seat passengers to listen to any
of the audio sources: radio, cassette tapes, CDs,
DVDs, XM™(USA only, if equipped) depending on your
vehicles options. However, the rear seat passengers
can only control the music sources that the front
seat passengers are not listening to. For example, rear
seat passengers may listen to a cassette tape through
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 override the RSA
controls.
Rear Seat Audio Controls
The following functions are controlled by the RSA
system buttons:
P(Power):Press this button to turn the rear seat
audio 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. You may
operate the rear seat audio functions even when the
primary radio power is off.
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2003 - Sierra Denali

u(Volume):Turn the knob to increase or to decrease
volume. The left knob controls the left headphone and
the right knob controls the right headphone.
SRC (Source):Press this button to select an audio
source: radio, cassette tapes, CDs, DVDs, XM™(USA
only, if equipped) depending on your vehicles options.
xSEEKw:While listening to AM, FM1 or FM2, XM1
or XM2, press the up or the down arrow to tune to
the next or to the previous station and stay there. If the
front radio is in use, you cannot seek through different
stations.
While listening to a cassette tape, press the up or the
down arrow to hear the next or the previous selection.
If the cassette tape on the front radio is in use, you
cannot seek through different selections on a tape.
While listening to a CD, press the up arrow to hear the
next track on the CD. Press the down arrow to go
back to the start of the current track if more than eight
seconds have played. If the CD player on the front radio
is in use, you cannot seek through different tracks.PROG (Program):The front passengers must be
listening to something different for each of these
functions to work:
•Press this button to go to the preset radio stations
set on the pushbuttons on the main radio.
•When a cassette tape is playing, press this button
to go to the other side of the tape.
•When a CD is playing in the radio, press this button
to go back to the beginning of the CD.
•When a CD is playing in the CD changer, press this
button to select a disc.
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2003 - Sierra Denali

Audio Steering Wheel Controls
You can control certain radio functions using the buttons
on your steering wheel.
g(OnStar/Voice Recognition):If your vehicle has
OnStar®, you can press this button to interact with
the OnStar®system. See the OnStar®manual provided
with your vehicle for more information.
IF your vehicle does not have OnStar
®, pressing this
button will mute the audio system.
PROG (Program):Press this button to play a station
you have programmed on the radio preset pushbuttons
on the selected band. If a cassette tape is playing,
press this button to play the other side of the tape. If a
CD is playing, press this button to go to the next
available CD.
QSOURCER:Press this button to select AM, FM1,
FM2, or XM1 or XM2, (USA only, if equipped), or a
cassette tape or CD. The cassette or CD must be loaded
to play. Available loaded sources are shown on the
display as a tape or a CD symbol.
QSEEKR:Press the up or the down arrow to seek
to the next or to the previous radio station and stay
there.
QVOLR:Press the up or the down arrow to increase
or to decrease volume.
Understanding Radio Reception
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere with each other. AM can pick
up noise from things like storms and power lines. Try
reducing the treble to reduce this noise if you ever get it.
FM Stereo
FM stereo will give you the best sound, but FM signals
will reach only about 10 to 40 miles (16 to 65 km).
Tall buildings or hills can interfere with FM signals,
causing the sound to come and go.
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2003 - Sierra Denali

A
Accessory Power Outlets.................................3-16
Adding Washer Fluid.......................................5-35
Additional Program Information........................... 7-8
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-91
Add-On Equipment..........................................4-50
Adjusting the Speakers (Balance/Fade)..............3-60
After Off-Road Driving.....................................4-30
Air Bag
Off Light.....................................................3-28
Passenger Status Indicator...........................3-31
Readiness Light..........................................3-27
Air Bag Systems.............................................1-55
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-71
Air Bag Off Switch.......................................1-61
How Does an Air Bag Restrain?....................1-59
Passenger Sensing System...........................1-66
Servicing Your Air Bag-Equipped Vehicle.........1-70
What Makes an Air Bag Inflate?....................1-59
What Will You See After an Air Bag Inflates?......1-59
When Should an Air Bag Inflate?...................1-58
Where Are the Air Bags?
..............................1-57
Air Cleaner/Filter, Engine
.................................5-18
Air Conditioning
..............................................3-21
All Overseas Locations
...................................... 7-4
All-Wheel Drive
...............................................5-45
All-Wheel Drive (AWD) System
.........................2-21AM ...............................................................3-76
Antenna, Fixed Mast.......................................3-78
Antenna, XM™ Satellite Radio Antenna System.....3-78
Anti-lock Brake System..................................... 4-6
Anti-Lock Brake, System Warning Light..............3-35
Appearance Care............................................5-82
Care of Safety Belts....................................5-84
Chemical Paint Spotting...............................5-88
Cleaning the Inside of Your Vehicle................5-83
Cleaning the Outside of Your Vehicle..............5-85
Finish Damage............................................5-87
GM Vehicle Care/Appearance Materials..........5-88
Sheet Metal Damage...................................5-87
Underbody Maintenance...............................5-87
Weatherstrips..............................................5-85
Approaching a Hill..........................................4-23
Ashtrays........................................................3-17
Audio System(s).............................................3-56
Audio Steering Wheel Controls......................3-76
Care of Your Cassette Tape Player................3-77
Care of Your CD Player...............................3-78
Care of Your CDs ........................................3-78
CD Changer
...............................................3-73
Fixed Mast Antenna
.....................................3-78
Navigation/Radio System
..............................3-70
Radio with Cassette and CD
.........................3-57
Rear Seat Audio (RSA)
................................3-71
Setting the Time
..........................................3-57
Theft-Deterrent Feature
................................3-75
Understanding Radio Reception
.....................3-76
1
2003 - Sierra Denali

O
Odometer......................................................3-26
Off-Road Recovery..........................................4-15
Oil
Engine.......................................................5-13
Pressure Gage............................................3-40
OIL LIFE RESET............................................3-52
OIL PRESSURE LOW .....................................3-52
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-3
OnStar
®Personal Calling.................................2-34
OnStar®Services............................................2-33
OnStar®Steering Wheel Controls......................2-34
OnStar®System.............................................2-33
OnStar®Virtual Advisor....................................2-34
Operating Your All-Wheel-Drive Vehicle Off
Paved Roads..............................................4-18
Other Warning Devices...................................... 3-4
Outlet Adjustment............................................3-23
Outside
Automatic Dimming Mirror.............................2-32
Convex Mirror
.............................................2-32
Curb View Assist Mirrors
..............................2-32
Heated Mirrors
............................................2-32
Power Foldaway Mirrors
...............................2-31
Power Mirrors
.............................................2-31
Overheated Engine Protection Operating Mode
.....5-26
Owners, Canadian
............................................... ii
Owner’s Information
........................................7-10
P
Park (P)
Shifting Out of............................................2-25
Parking
Brake........................................................2-22
Over Things That Burn.................................2-26
Parking Brake and Automatic Transmission
Park (P) Mechanism Check...........................6-13
Parking on Hills..............................................4-60
Park(P)
Shifting Into................................................2-23
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-10
Part C - Periodic Maintenance Inspections..........6-14
Part D - Recommended Fluids and Lubricants....6-15
PartE-Maintenance Record...........................6-17
Passenger Air Bag Indicator.............................2-30
Passenger Air Bag Status Indicator...................3-31
PASSENGER DOOR AJAR..............................3-56
Passenger Sensing System..............................1-66
Passing.................................................4-15, 4-58
Passlock
®......................................................2-15
Payload.........................................................4-49
Personalization Button.....................................3-46
Pickup Conversion to Chassis Cab
....................4-52
Plan Ahead When Possible
................................ 7-7
Playing a Cassette Tape
..................................3-65
Playing a Compact Disc
...................................3-68
Playing the Radio
...........................................3-58
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2003 - Sierra Denali

Power
Accessory Outlets........................................3-16
Door Locks.................................................. 2-7
Electrical System.........................................5-91
Lumbar Controls........................................... 1-3
Seat............................................................ 1-2
Steering Fluid.............................................5-34
Windows....................................................2-12
Power Steering...............................................4-10
Programmable Automatic Door Locks.................. 2-7
Programming the HomeLink
®Transmitter...........2-35
Puddle Lamps................................................3-13
Q
QUADRASTEER™..........................................4-12
Questions and Answers About Safety Belts.........1-11
R
Radio Data System (RDS)...............................3-57
Radio Messages.............................................3-63
Radios..........................................................3-56
Care of Your Cassette Tape Player................3-77
Care of Your CD Player...............................3-78
Care of Your CDs ........................................3-78
CD Changer...............................................3-73
Navigation/Radio System..............................3-70Radios (cont.)
Radio with Cassette and CD.........................3-57
Rear Seat Audio..........................................3-71
Setting the Time..........................................3-57
Theft-Deterrent............................................3-75
Understanding Reception..............................3-76
RDS Messages..............................................3-62
Rear Axle......................................................5-46
Locking......................................................4-10
Rear Doors...................................................... 2-9
Rear Safety Belt Comfort Guides......................1-26
Rear Seat Audio Controls.................................3-71
Rear Seat Audio (RSA)....................................3-71
Rear Seat Operation......................................... 1-6
Rear Seat Outside Passenger Positions.............1-23
Rear Seat Passengers, Safety Belts..................1-23
Rear Seat Top Strap Anchors...........................1-41
Rear Window Defogger....................................3-23
Rearview Mirror, Automatic Dimming with OnStar
®,
Compass and Temperature Display..................2-28
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-47
REDUCED ENGINE POWER...........................3-52
Remote Alarm.................................................. 2-4
Remote Keyless Entry System............................ 2-3
Remote Keyless Entry System, Operation
............ 2-4
Removing the Flat Tire and Installing the
Spare Tire
..................................................5-68
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2003 - Sierra Denali