GM Service Manual Online
For 1990-2009 cars only

The analog clock is located on the instrument panel above the radio. The clock is not connected with any other vehicle system and runs by itself. To change the clock, do the following:

  1. Push and hold the button located directly above the clock to advance the clock hands. Holding the button down will cause the clock to advance faster. Release the button before you get to the desired time.
  2. Push and release the button to increase the time by one minute increments until the desired time is reached.