How do you reset maintenance light, reset service light indicator Mercury Mountaineer, year 1999. 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010. For reset maintenance light and that can be made manually by use button on car dash board. Instructions to reset service indicator 1999-2010 1999-2001 Turn the ignition to run (one […]