How to Open Your 2013 Toyota Sienna Key Fob and Change Battery

If your Toyota key fob is no longer working well, the cell battery most likely needs to be replaced. In this article, we are going to tell you how to disassembly Toyota remote key fob and replace a weak or dead battery DIY. If you choose to do it at home near Sienna, follow our guide, but first make sure you have tools and materials required before you start.
What size battery does 2013 Toyota Sienna key fob required
Replacing battery in keyless entry remote require flat head screwdriver and CR1632 battery. Prepare these materials and tools before opening and make sure to match the size of your fob’s batteries.- flat head screwdriver
- 1xCR1632 battery
Simple steps to replace the battery in your car's keyless entry remote
Inside of your remote key fob installed small button battery. Remove any internal key before you try to pry apart the remote key fob.
Accurately try to disassemble your key fob with pry tools. Replace CR1632 battery with flat head screwdriver.
Get new battery and install it in fob’s shell. Battery must be placed with the same polarity as was a previous. Your remote key fob will not work if you by mistake put battery wrong way.
Before assembling keyless entry fob's case, make sure that all is functioning by testing buttons on key fob.
The last thing to do is put your cover back on fob. Delicately try to assemble the pieces together by hands from top to bottom. Inspect your key fob body for gaps. If it is not firmly closed try to repeat last step.
How to replace the battery video guide
DIY - How to change SmartKey Key fob Battery on Toyota Sienna
Still not working? Buy new one