GTO V8-6.0L VIN U (2005)
Oil Change Reminder Lamp: Service and Repair
GM Oil Life System Resetting
How to Reset the Service Engine Oil message
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A SERVICE ENGINE OIL SOON
message will come on. Change the engine oil as soon as possible within the next 600 miles (1000 km). It is possible that, if driving under the best
conditions, the oil life may not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at least once a
year and at this time the system must be reset.
If the system is ever reset accidentally, change the engine oil at 3000 miles (5000 km) since last oil change.
After changing the engine oil, reset the system by performing the following steps:
1. With the engine off, turn the ignition key to ON.
2. Fully press and release the accelerator pedal slowly three times within five seconds.
3. Turn the key to LOCK.
If the Service Engine Oil message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure.
