The radio is used to adjust the vehicle's chime volume level. To adjust the chime volume level:

1. Turn the radio off with the ignition in the ON/RUN position.
2. Press and hold pushbutton 6, the volume level will change from the normal level to loud, and LOUD will appear on the radio display.

•	If the chime volume is at the normal level, it changes to the loud level and LOUD appears on the radio display.

•	If the chime volume is at the loud level, it changes to the normal level and NORMAL appears on the radio display.

Removing the radio and not replacing it with a factory radio or chime module disables the chimes.