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156,345 miles
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GM Oil Life System Resetting
When the system has calculated that oil life has been diminished, it will indicate that an oil
change is necessary. A CHANGE ENGINE OIL SOON message will come on. Change the
engine oil as soon as possible within the next 600 miles (1,000 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 3,000 miles (5,000 km)
since last oil change.
Resetting Procedure
To reset the Engine Oil Life System, do the following:
1. Turn the ignition to ON, with the engine off.
2. Slowly fully press and release the accelerator pedal 3 times within 5 seconds. The
reset is complete when the chime sounds and the CHANGE OIL lamp goes out. If the
lamp stays on and no chime is heard, repeat the reset procedure.
3. Turn the key to OFF.
If the CHANGE OIL lamp comes back on when the vehicle is started, the engine oil life
system has not reset. Repeat the procedure.
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