Maintenance Indicator Reset
GM OIL LIFE SYSTEM - RESETTING
1. With the ignition key in RUN but the engine off, repeatedly push the trip/reset button until "OIL" is displayed on the Driver Information Center.
2. Once "OIL" is displayed, push and hold the trip/reset button for five seconds. The number will disappear and be replace by 100 indicating 100 percent oil life remaining.
3. Turn the key to "OFF".
4. If the "Change Engine Oil" message comes back on, the engine oil life monitor has not reset. Repeat the procedure.