GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Park Avenue 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 GM Oil Life System Resetting

Resetting Procedure

Follow this procedure to reset the GM Oil Life System ™:

  1. Display OIL LIFE INDEX on the DIC.
  2. Press and hold the RESET button on the DIC for more than five seconds. The oil life will change to 100%.