To find the correct procedure, you'll need to:
1. Consult your owner's manual: This is the most reliable source of information. Look for sections on "Maintenance," "Oil Life System," or "Instrument Panel."
2. Search online: Search for "[Your Pontiac Model] 2004 oil life reset" on Google or YouTube. Many videos demonstrate the process visually.
Without knowing the specific Pontiac model, I cannot provide the precise steps. The procedure generally involves cycling through odometer displays or using a combination of the trip odometer reset button and the ignition switch.