GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2002
🢒
Park Avenue
🢒
Engine
🢒
Engine Controls - 3.8L
🢒 GM Oil Life System Resetting
Resetting Procedure
Follow this procedure to reset the GM Oil Life System ™:
Display OIL LIFE INDEX on the DIC.
Press and hold the RESET button on the DIC for more than five seconds. The oil life will change to 100%.