GMC Sierra Owners Manuals
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Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get hot and no ...
Setting the Clock
To set the time and date:
1. Turn the ignition key to ACC/ ACCESSORY or ON/RUN, then press
, to turn the radio on.
2. Press
to display HR, MIN, MM, DD, and YYYY (hour, minute, month, day, and yea ...





