A small battery will be housed under the green microchip and should be easy to pop out and replace.
Toyota sienna key fob battery dead.
A bunch of manufacturers have a backup system built into the start button to allow a car with a dead key fob to start that way i believe your toyota is one of them rich.
How to unlock and start your toyota with a dead smart key toyota smart key fobs house a mechanical key to help you get inside of your vehicle when the smart key stops working.
Inside you will find a small green circuit board that houses the small battery.
To change the battery in your toyota key fob take the metal key outside of the fob and then use the opening left behind to gently pry the fob open.
Also please check out the statistics and reliability analysis of toyota sienna based on all problems reported for the sienna.
The most recently reported issues are listed below.
Just don t forget to replace your battery before the fob is completely dead.
Try using the key fob itself to push the start button touch them together.
Other cars have another spot where you can touch the dead key fob that allows the car to.
Toyota sienna owners have reported 13 problems related to battery dead under the electrical system category.
Energizer battery cr2032 https amzn to 2decuq6 here is a quick little video showing you how to replace the dead cr2032 battery in the toyota sienna sma.