Chevrolet 2005 T-Series Owner's Manual page 110

Using the Alarm
U
(Alarm): The alarm on the radio can be used to
activate an alarm at a desired time.
To set the alarm, perform the following:
1. Press the DISP button until the alarm symbol
appears on the display.
2. Press the alarm button while the alarm symbol is
flashing, until the letter A appears on the display.
3. Press the up tuning arrow to change the hour.
4. Press the down tuning arrow to change the minutes.
After setting the alarm, the display will change back
to the current time.
5. Press the alarm button, again. The alarm symbol
will appear on the display. The alarm will sound at
the same time every day.
6. To turn the alarm off, press the alarm button.
7. To deactivate the alarm, press the alarm button.
To check the time of the alarm, press the DISP button.
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Using the Wake-Up Timer
The wake-up timer can be used to turn the radio on at a
specific time, without the key in the ignition.
1. Press the DISP button until the alarm symbol
appears on the display.
2. Press the alarm button while the alarm symbol is
flashing, until the letter U appears on the display.
3. Press the up tuning arrow to change the hour.
4. Press the down tuning arrow to change the minutes.
After setting the timer, the display will change back
to the current time.
When the set time comes, the radio will be switched
on and will remain on for one hour.
5. To turn the radio off, press the alarm button.