GM Service Manual Online
For 1990-2009 cars only
Makes
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Buick
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2003
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Park Avenue
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General Information
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Maintenance and Lubrication
🢒 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%.