Find how to reset any maintenance light or reset oil life after an oil change for all makes and models.

Mercury

How to reset oil change light indicator reset maintenance light without using a computer for Mercury

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Oil service reset Mercury Grand Marquis

2006-2010

Turn the ignition to run (one position before starting engine).
Press SELECT to change the oil life start value. OIL LIFE START VALUE SET TO XXX% will be displayed.
Press and hold the RESET control for two seconds and release. Oil life is set to 100% “OIL LIFE XXX% HOLD RESET IF NEW OIL” is displayed.
Press and hold the RESET control for three seconds and release. Oil life is set to 100% and “OIL LIFE START VALUE SET TO XXX%” is displayed.
Turn the ignition off and then start the engine to verify the indicator has been reset.

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