To erase the three programmed buttons (individual buttons cannot be erased) :
Blade inspection
Commercial hot waxes applied by automatic vehicle washes have been known to make
the windshield difficult to clean.
Contamination of either the windshield or the wiper blades with foreign matter ...
Relay Box (Engine Compartment) Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Pull out the relay from the engine compartment relay block.
Power Relay (Type A)
Check for continuity between the terminals. ...