Other information:
Replacement
Wear gloves to protect hands from injury.
When removing and installing the tail gate, an assistant is needed.
...
The transmitter uses a 3 volt lithium battery which will normally last for several
years. When replacement is necessary, use the following procedure.
1. Insert a slim tool into the slot and gently pry open the transmitter center
cover.
2. Replace the battery with a new battery (CR2032). When ...