Remove The Battery

Lay the remote control on a towel or other soft material.
Place it with the back side facing up.

Fig 1: Position Of Placing Remote Control
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Using a coin, pry open the remote control.
Use gentle pressure to avoid deforming the plastic.

Fig 2: Opening Remote Control
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Set the back cover aside.

Fig 3: Identifying Back Cover
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove the rubber gasket and set it aside.

Fig 4: Removing Rubber Gasket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Push the battery down and toward you, and hold it down.
Pry the back edge of the battery up and toward you.

Fig 5: Pushing Battery Down