1997

Turn the ignition to run (one position before starting engine).
Display the oil life index on the Driver Information System.
Hold the RESET button for 5 seconds.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1998

Turn the ignition to run (one position before starting engine).
Press the TRIP button on the Driver Information System (DIC) switch to view various menu choices and stop on OIL LIFE REMAINING.
Press and hold the RESET button on the DIC switch for more than 5 seconds. The oil life will change to 100%.
Turn the ignition off and then start the engine to verify the indicator has been reset.