I change the oil keep saying need oil change - 2001 Chevrolet Venture

On a 2001 gm i believe you turn the ingition to the run position with the engine off and with-in 3 seconds step on gas pedal 3 times all the way to the floor. the message center should reset and go off. turn key off and then start car. to see if reset.sometimes you have to go slow 3 times to floor with gas pedal.MAKE SURE ENGINE IS NOT RUNNING WHEN YOU DO THE RESET.

You need to reset the change oil light every time you change the oil The GM Oil Life System_ calculates when to change your engine oil and filter based on vehicle use. Anytime your oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where you change your oil prior to a change engine oil message being turned on, reset the system. 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. When OIL is displayed, push and hold the trip/reset button for five seconds. The number will disappear and be replaced by 100 (indicating 100% oil life remaining). 3. Turn the key to OFF. If the change engine oil message comes back on, the engine oil life monitor has not reset. Repeat the procedure.