Oil service reset Cutlass Supreme

1996

Turn the ignition to run (one position before starting engine).
Immediately after Step 1 press and release the gas pedal 3 times within 5 seconds. If the CHANGE OIL SOON indicator flashes 2 times, the system is reset.
Turn the ignition off and then start the engine to verify the indicator has been reset.

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.