Transmitter Batteries
WARNING: This page is about a different car, the 1997 Mercury Mystique and 1997 Ford Contour. However, it is still accessible from the selected car via links, so may be relevant.
Open transmitter by inserting coin between halves and twisting. Carefully swing contacts from old batteries. Insert 2 NEW coin-type 3-volt lithium batteries with positive terminal downward. Carefully swing contacts into position. Snap transmitter halves together.