2007 GMC SIERRA CLASSIC ignition

While your vehicle is parked:
Familiarize yourself with all of its controls.
Familiarize yourself with its operation.
Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering
wheel controls if the vehicle has them.
Notice:Before adding any sound equipment
to your vehicle, such as an audio system,
CD player, CB radio, mobile telephone,
or two-way radio, make sure that it can be
added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be
added, it is very important to do it properly.
Added sound equipment may interfere with the
operation of your vehicle’s engine, radio, or
other systems, and even damage them.
Your vehicle’s systems may interfere with the
operation of sound equipment that has
been added.Notice:The chime signals related to safety
belts, parking brake, and other functions
of your vehicle operate through the
radio/entertainment system. If that equipment
is replaced or additional equipment is added
to your vehicle, the chimes may not work. Make
sure that replacement or additional equipment
is compatible with your vehicle before
installing it. SeeAccessories and Modifications
on page 468.
Your vehicle has a feature called Retained
Accessory Power (RAP). With RAP, the audio
system can be played even after the ignition
is turned off. SeeRetained Accessory Power
(RAP) on page 137for more information.
Setting the Time for Radios without
Radio Data Systems (RDS)
Press and hold HR (hour) until the correct hour
appears on the display. Press and hold MIN
(minute) until the correct minute appears on the
display. There is an initial two-second delay before
the clock goes into time-set mode. Display the
time with the ignition off, by pressing RCL (recall),
HR, or MIN.
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Setting the Time for Radios with
Radio Data Systems (RDS)
The radio may have a button marked with an H or
HR to represent hours and an M or MN to
represent minutes.
Press and hold the hour button until the correct
hour appears on the display. Press and hold
the minute button until the correct minute appears
on the display. The time can be set with the
ignition on or off.
To synchronize the time with an FM station
broadcasting Radio Data System (RDS)
information, press and hold the hour and minute
buttons at the same time until RDS TIME appears
on the display. To accept this time, press and
hold the hour and minute buttons, at the same
time, for another two seconds. If the time is
not available from the station, NO UPDAT (update)
will appear on the display.
RDS time is broadcast once a minute. After tuning
to an RDS broadcast station, it may take a few
minutes for the time to update.
AM-FM Radio
Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
VOL (Volume):Turn this knob clockwise or
counterclockwise to increase or to decrease the
volume.
RCL (Recall):Press this knob to switch the
display between the radio station frequency, band,
and the time. When the ignition is off, press this
knob to display the time.
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Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
oVOLp(Volume):Turn this knob to increase
or to decrease the volume.
INFO (Information):When the ignition is off,
press this knob to display the time.
For RDS, press the INFO knob to change what
appears on the display while using RDS. The
display options are station name, RDS station
frequency, PTY, and the name of the program
(if available).
For XM™ (if equipped), press the INFO knob
while in XM™ mode to retrieve four different
categories of information related to the current
song or channel: Artist, Song Title, Category
or PTY, Channel Number/Channel Name.
To change the default on the display, press the
INFO knob until you see the display you want, then
hold the knob until you hear a beep. The
selected display will now be the default.AUTO VOL (Automatic Volume):With automatic
volume, the audio system will adjust automatically
to make up for road and wind noise as you drive by
increasing the volume as vehicle speed increases.
Set the volume at the desired level. Press this
button to select LOW, MEDIUM, or HIGH. AVOL
will appear on the display. Each higher setting will
provide more volume compensation at faster
vehicle speeds. To turn automatic volume off, press
this button until AVOL OFF appears on the display.
Finding a Station
BAND:Press this button to switch between FM1,
FM2, AM, or XM1 or XM2 (if equipped). The
display will show the selection.
oTUNEp:Turn this knob to select radio
stations.
©SEEK¨:Press either the SEEK or the TYPE
arrows to go to the next or to the previous
station and stay there.
The radio will only seek stations with a strong
signal that are in the selected band.
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Radio Messages
CAL ERR (Calibration Error):The audio system
has been calibrated for your vehicle from the
factory. If CAL ERR appears on the display, it
means that the radio has not been congured
properly for the vehicle and must be returned to
your GM dealer for service.
LOCKED:This message is displayed when the
THEFTLOCK
®system has locked up. Take
the vehicle to your GM dealer for service.
If any error occurs repeatedly, or if an error cannot
be corrected, contact your GM dealer.
Radio Messages for XM™ Only
SeeXM Radio Messages on page 332later in this
section for further detail.
Playing a CD
Insert a CD part way into the slot, label side up.
The player will pull it in and the CD should
begin playing. If you want to insert a CD with the
ignition off, rst press the eject button or the
INFO knob.If the ignition or radio is turned off with the CD in
the player, it will stay in the player. When the
ignition or radio is turned on, the CD will
start playing where it stopped, if it was the last
selected audio source.
When a CD is inserted, the CD symbol will appear
on the display. As each new track starts to play,
the track number will appear on the display.
The CD player can play the smaller 3 inch (8 cm)
single CDs with an adapter ring. Full-size CDs
and the smaller CDs are loaded in the same
manner.
If playing a CD-R, the sound quality may be
reduced due to CD-R quality, the method of
recording, the quality of the music that has been
recorded, and the way the CD-R has been
handled. There may be an increase in skipping,
difficulty in nding tracks, and/or difficulty in loading
and ejecting. If these problems occur, check the
bottom surface of the CD. If the surface of the CD
is damaged, such as cracked, broken, or
scratched, the CD will not play properly. If the
surface of the CD is soiled, seeCare of Your CDs
and DVDs on page 352for more information.
If there is no apparent damage, try a known
good CD.
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6 RDM (Random):Press this pushbutton to hear
the tracks in random, rather than sequential,
order. RDM ON will appear on the display. RDM T
and the track number will appear on the display
when each track starts to play. Press this
pushbutton again to turn off random play. RDM
OFF will appear on the display.
©SEEK¨:Press the left arrow to go to the
start of the current or to the previous track. Press
the right arrow to go to the start of the next
track. If either arrow is held or pressed more than
once, the player will continue moving backward
or forward through the CD.
©SCAN¨:Press and hold either the SCAN or
the TYPE arrows for more than two seconds
until SCAN appears on the display and you hear a
beep. The radio will go to the next track, play
for 10 seconds, then go on to the next track. Press
either the SCAN or the TYPE arrows again, to
stop scanning.INFO (Information):Press this knob to see how
long the current track has been playing. ET
and the elapsed time will appear on the display.
To change the default on the display, track or
elapsed time, press the knob until you see
the display you want, then hold the knob for
two seconds. The radio will produce one beep and
the selected display will now be the default.
BAND:Press this button to listen to the radio
when a CD is playing. The inactive CD will remain
safely inside the radio for future listening.
CD AUX (Auxiliary):Press this button to play a
CD when listening to the radio. The inactive
CD will remain safely inside the radio for future
listening.
Z(Eject):Press this button to stop and eject a
CD when it is playing or to eject a CD when it
is not playing. Eject may be activated with either
the ignition or radio off. CDs may be loaded
with the radio and ignition off if this button is
pressed rst.
303

Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
oVOLp(Volume):Turn this knob to increase
or to decrease the volume.
INFO (Information):When the ignition is off,
press this knob to display the time.
For RDS, press the INFO knob to change what
appears on the display while using RDS. The
display options are station name, RDS station
frequency, PTY, and the name of the program
(if available).
For XM™ (if equipped), press the INFO knob
while in XM™ mode to retrieve four different
categories of information related to the current
song or channel: Artist, Song Title, Category
or PTY, Channel Number/Channel Name.
To change the default on the display, press the
INFO knob until you see the display you want, then
hold the knob until the display ashes. The
selected display will now be the default.AUTO VOL (Automatic Volume):With automatic
volume, the audio system will adjust automatically
to make up for road and wind noise as you
drive by increasing the volume as vehicle speed
increases.
Set the volume at the desired level. Press this
button to select LOW, MEDIUM, or HIGH. AVOL
will appear on the display. Each higher setting
will provide more volume compensation at faster
vehicle speeds. To turn automatic volume off,
press this button until AVOL OFF appears on the
display.
Finding a Station
BAND:Press this button to switch between FM1,
FM2, AM, or XM1 or XM2 (if equipped). The
display will show the selection.
oTUNEp:Turn this knob to select radio
stations.
©SEEK¨:Press either the SEEK or the TYPE
arrows to go to the next or to the previous
station and stay there.
The radio will only seek stations with a strong
signal that are in the selected band.
306

Radio Messages
CAL ERR (Calibration Error):The audio system
has been calibrated for your vehicle from the
factory. If CAL ERR appears on the display, it
means that the radio has not been congured
properly for the vehicle and must be returned to
your GM dealer for service.
LOCKED:This message is displayed when the
THEFTLOCK
®system has locked up. Take
the vehicle to your GM dealer for service.
If any error occurs repeatedly, or if an error cannot
be corrected, contact your GM dealer.
Radio Messages for XM™ Only
SeeXM Radio Messages on page 332later in this
section for further detail.
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 hearnothing 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.
311

CLEAN:If this message appears on the display,
the cassette tape player needs to be cleaned. It will
still play tapes, but it should be cleaned as soon as
possible to prevent damage to the tapes and player.
SeeCare of the Cassette Tape Player on page 350.
If the cassette tape is not playing correctly, for any
other reason, try a known good cassette.
If any error occurs repeatedly or if an error cannot
be corrected, contact your GM dealer. If the radio
displays an error message, write it down and
provide it to your GM dealer when reporting the
problem.
CD Adapter Kits
It is possible to use a portable CD player with the
cassette tape player after activating the bypass
feature on your tape player.
To activate the bypass feature, perform the
following steps:
1. Turn the ignition on.
2. Turn the radio off.3. Press and hold the TAPE DISC button for
ve seconds. READY will appear on the
display and the tape symbol on the display
will ash, indicating the feature is active.
4. Insert the adapter into the cassette tape slot.
It will power up the radio and begin playing.
The override feature will remain active until the
eject button is pressed.
Playing a CD
Insert a CD part way into the slot, label side up.
The player will pull it in and the CD should
begin playing. If you want to insert a CD with the
ignition off, rst press the eject button or the
INFO knob.
If the ignition or radio is turned off with the CD in
the player, it will stay in the player. When the
ignition or radio is turned on, the CD will
start playing where it stopped, if it was the last
selected audio source.
When a CD is inserted, the CD symbol will appear
on the display. As each new track starts to play,
the track number will appear on the display.
314