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.

Oil service reset Cutlass Ciera

1991-1996

Turn the ignition to run (one position before starting engine).
The oil life index may be reset by pressing and holding the OIL and RESET buttons for approximately 5 seconds.
Turn the ignition off and then start the engine to verify the indicator has been reset.

Oil service reset Cutlass

1982-1991

Turn the ignition to run (one position before starting engine).
The oil life index may be reset by pressing and holding the OIL and RESET buttons for approximately 5 seconds.
Turn the ignition off and then start the engine to verify the indicator has been reset.