2004 Pontiac Grand Prix Owner's Manual - Page 158

OIL LIFE REMAINING: Press the gage button until OIL LIFE REMAINING is displayed. This screen indicates the percentage of oil life in the vehicle's engine that has not degraded. If the screen indicates 99% OIL LIFE REMAINING, this means that 99 percent of the current oil life remains. When the oil life drops below five percent, the CHANGE OIL SOON message will appear on the display. The engine oil should be changed within 200 miles. Be sure to keep a record of the mileage and date of the oil change so you will have it for future reference. Never drive the vehicle more than 10,000 miles (16 000 km) or 12 months (whichever comes first) without an oil change. After the oil has been changed in the vehicle, reset the ENGINE OIL MONITOR screen in the options menu. Press the gages button again to advance to the next screen. TRANSMISSION FLUID TEMP: This screen displays this message along with the temperature (F° or C°) of the transmission fluid. Press the gages button again to advance to the next screen. BATTERY: This screen displays the amount of volts the battery is generating. Press the gages button again to advance to the next screen. ENGINE HOURS: This screen shows the number of cumulative hours the engine has operated while the key was in the RUN position. This screen cannot be reset. Press the gages button to scroll to the next screen. ENGINE BOOST: If the vehicle has the supercharged engine, this screen will appear. It shows a graphic that indicates the amount of boost the engine is receiving. Press the gages button again to scroll to the next screen. 3-54