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 Smart Key fob. All you need to do is remove the emergency key by pressing the side button and holding down. Then slide the key out. At that point, you can use that same key to crack open the case. Once the case is open, carefully pick up the circuit board and replace your battery. Make sure you're gentle!

Once the battery is back in, close the case up and you're home free. Hope this was helpful!

Current Toyota Part Number: 89904-08010 FCC ID: HYQ14ADR
This remote fits:
2011-2017 Toyota Sienna with push to start ignition system only