To reset the 2008 Mercury Sable maintenance light, please follow these instructions:
1. Turn the ignition to run (one position before starting engine). 2. Press and release SETUP to display “OIL LIFE XXX% HOLD RESET = NEW”. 3. Press and hold RESET for 2 seconds and release to reset the oil life to 100%. 4. Turn the ignition off and then start the engine to verify the indicator has been reset.