GM Service Manual Online
For 1990-2009 cars only

Chime Level Adjustment

In order to adjust the chime level, perform the following steps:

  1. Turn the ignition ON.
  2. Turn the radio OFF.
  3. Press and hold the radio push-button 6 until either LOD or SF appears on the radio display.
  4. To toggle the setting, press and hold the radio push-button 6 again.

Refer to Audible Warnings Description and Operation in Instrument Panel, Gages, and Console for more information about the chime.