GMC 2003 Sierra - Manual (Page 225)

Setting Preset Stations
The six numbered pushbuttons I 0 I you return to your
Favonte sialions. Vou can set up to 19 sialrons {six AM,
six FMl and SIX FM2) by performing Ihe following steps:
1. Turn (he radio on.
2. Piess AM FM to select AM, FMl orFM2.
3. Tune In the desired station.
4. Press and hold one of ihe six numbered
pUShtiuUon& unril you hear a beep. Whenever you
press that numbered pushbutton, the station
you set Willi rfiium.
5 . Repeal (he sieps tor each pushbutton.
Setting the Tone (Bass/Treble)
AUDfO: To adjust bass and trgbte, press and retease
AUDIO repeaiedly urtlil BAS or TRE appears on
ibe display. Than press and hold the up or the down
arrow to Increase or to decrease. If a sialion is weaK or
noisy, you may want to decrease (he tnabis.
To adjust bass or treble to the middle posilion, select
BAS or TRE. Then press and hold AUDIO for more lhan
iwo seconds unBF you hear a beep. B and a zera or T
and a iero will appear on the display.
To adjust both tone controls and both speaker cgntrols
to Ihe middle posiüon, end out of audio by waiting
for Ihe display to change lo the time display. Then press
and hold AUDIO tor more thar^ two seconds until you
hear a beep. CEN wiJI appear qn the display.
Adjusting the Speakers fBalance/Fade)
AUDFOt To adjust Ihg balance between the right
and the leFl speahere, press and release AUDIO unii
BAL appears on the display. Then press and hold the up
or the down arrow to mohre the sound toward the right
or the Egft speakers.
To adjust Ihe fade between the front and the rear
speakers, press and release AUDJO unlil FAD appears
on the display. Then press and hold the up or ihg
down arrow to move Ihe sound toward the front or the
rear speakers.
To gdju&t balance or fade tu the middle position, select
BAL or FAD. Then press and hold AUDIO for more
lhan two seconds unlil you hear a beep. L and a zero
or F and a zero will appear on Ihe display.
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