See also:

Clearing the programmed information
Individual buttons cannot be cleared, however to clear all programming, push and hold the two outside buttons and release when the indicator light begins to flash (in approximately 20 seconds) ...

Instrument brightness control
The instrument cluster illuminates when the ignition switch is placed in the ON position. The instrument brightness control operates when the headlight control switch is in the AUTO or positi ...

Washing
Wash dirt off with a wet sponge and plenty of water. Clean the vehicle thoroughly using a mild soap, a special vehicle soap or general purpose dishwashing liquid mixed with clean, lukewarm (ne ...