How To Replace Key Fob Battery Toyota. Remove the green circuit board. This is a 3v battery and the numbers refer to the size specifications of the battery the 20 indicates that the diameter of the battery is 20mm and the 32 indicates the battery thickness of 32mm.

Remove the green circuit board. When it is time to replace the battery take these simple steps to change your Toyota key fob battery. Remove the green circuit board out of the back of the case using your device.
Gently lift up the circuit board to expose the battery below.
Button battery CR2032 toyota keyfob. When it is time to replace the battery take these simple steps to change your Toyota key fob battery. When the battery life in your Toyota key fob is low the standard battery life is 1 to 2 years you will hear an alarm in the cabin when the engine stops. A new battery is needed and then after opening the key fob you can easily replace it.

