How do you reset the oil change indicator on a 1999 Cadillac Deville?

Answer

Ignition ON, Engine OFF.

2. While watching the diagnostic information center (CIC) display keep pushing and releasing the OIL button on th DIC until you see OIL LIFE INDEX.

3. Hold IN the RESET button for 5 seconds until you see RESET on the DIC and the oil life index equals 100 percent and then release the button.

Tom