Copied from an 07 owners manual
To reset the oil monitoring system to 100% after each oil change
[approximately 5,000 miles (8,000 km) or 180 days] perform the
following:
1. Enter SYSTEM CHECK to display
“OIL XXX% OIL LIFE OKâ€.
2. Press RESET control to display
“HOLD RESET IF NEW OILâ€.
3. Press and hold the RESET
control for more than 2 seconds. Oil
life is set to 100% and “OIL
CHANGE SET TO 100%†is
displayed.
Note: To change oil life 100% miles
value from 5,000 miles (8,000 km)
or 180 days to another value, refer
to the Oil Life Start Value selected from the SETUP MENU in this
section.
Todd Z