July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Manual Operation Of Service Mode: Notes

WARNING: This page is about a different car, the 1993 Buick Riviera and 1992 Buick Riviera. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use manual operation of service mode system with trouble code charts. Prior to using flow charts, become completely familiar with the procedures in MANUAL OPERATION OF SERVICE MODE.