Chevrolet 2007 TrailBlazer Owner's Manua page 254

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 (balance) displays.
Turn the knob to move the sound toward the
right or the left speakers.
To adjust the fade between the front and the rear
speakers, push and release the AUDIO knob
until FADE displays. Turn the knob to move the
sound toward the front or the rear speakers.
To adjust the balance or the fade to the middle
position while it is displayed, push the AUDIO
knob, then push it again and hold it until you
hear one beep.
To adjust all tone and speaker controls to the
middle position, push and hold the AUDIO knob
when no tone or speaker control displays.
ALL CENTERED displays and a beep sounds.
254
Finding a Program Type (PTY) Station
(RDS and XM™)
To select and find a desired PTY perform the
following:
1. Turn the P-TYPE knob to select a PTY.
2. Once the desired PTY displays, press
the SEEK TYPE button to select and go
to the PTY's first station.
3. To go to another station within that PTY,
press the SEEK TYPE button twice to
display the PTY and then to go to another
station.
4. Press the P-TYPE knob to exit program
type select mode.
IF PTY times out and no longer displays,
go back to Step 1.
If both PTY and TRAF are on, the radio searches
for stations with the selected PTY and traffic
announcements.
If the radio cannot find the desired program type,
NONE displays and the radio returns to the
last station you were listening to.