Pontiac 2007 G6 Owner's Manual page 228

Radio Messages
CALIBRATE: The audio system has been
calibrated for your vehicle from the factory. If
CALIBRATE displays, it means that the radio has
not been configured properly for your vehicle
and it must be returned to your dealer for service.
LOCKED: This message is displayed when
®
the THEFTLOCK system has locked up. Take
your vehicle to your dealer for service.
If any error occurs repeatedly or if an error cannot
be corrected, contact your GM dealer.
Radio Messages for XM™ Only
See XM Radio Messages on page 246 later in this
section for further detail.
Playing a CD
Insert a CD partway into the slot, label side up.
The player pulls it in and the CD should begin
playing. If you want to insert a CD with the ignition
off, first press the eject button or the DISP
(display) knob.
As each new track starts to play, the track number
appears on the display.
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If the ignition or radio is turned off with a CD in
the player, it stays in the player. When the ignition
or radio is turned on, the CD starts playing,
where it stopped, if it was the last selected audio
source.
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 finding 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, see Care of Your CDs
on page 250 for more information.
If there is no apparent damage, try a known
good CD.