How do you change a key battery on a 2007 ns pajero?

To change the key battery on a 2007 Mitsubishi Pajero, first, locate the small notch or groove on the key fob. Use a flathead screwdriver to gently pry open the fob, separating the two halves. Remove the old battery, noting its orientation, and replace it with a new CR2032 battery. Finally, snap the fob back together and test the key to ensure it works properly.