Reset service light indicator, engine oil life Cadillac Eldorado, year 1989-2002 reset instructions:

1989-1991
Turn the ignition to run (one position before starting engine).
Press ENG DATA until oil life index is displayed.
Press ENG DATA and RANGE simultaneously until oil life index resets to 100 (hold about 5 seconds).
Turn the ignition off and then start the engine to verify the indicator has been reset.
1992-1993

Turn the ignition to run (one position before starting engine).
Display the OIL LIFE INDEX by pressing the INFORMATION button.
Press and hold the STORE/RECALL button until the display shows 100.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1994-1996

Turn the ignition to run (one position before starting engine).
Press the INFORMATION button several times until OIL LIFE INDEX message appears.
Press and hold the RESET button until the display resets to 100.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1997-1998

Turn the ignition to run (one position before starting engine).
Press the TRIP button on the DIC to view various menu choices and stop on OIL LIFE REMAINING.
Press and hold the RESET button on the DIC switch for more than 5 seconds. The oil life will change to 100%.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1999

Turn the ignition to run (one position before starting engine).
Press the SKIP INFO button on the DIC control panel in order to display the OIL LIFE LEFT message.
Press and hold the INFO RESET button until the display shows 100% ENGINE OIL LIFE.
Turn the ignition off and then start the engine to verify the indicator has been reset.

2000

Turn the ignition to run (one position before starting engine).
Press the TRIP button on the DIC to view various menu choices and stop on OIL LIFE REMAINING.
Press and hold the RESET button on the DIC switch for more than 5 seconds. The oil life will change to 99%.
Turn the ignition off and then start the engine to verify the indicator has been reset.

2001-2002

Turn the ignition to run (one position before starting engine).
Display the OIL LIFE LEFT message by repeatedly pressing the SKIP INFO button.
Press the INFO RESET button until the display shows 100% ENGINE OIL LIFE.
Turn the ignition off and then start the engine to verify the indicator has been reset.