After a couple years of daily use, the battery inside the combination
car key and remote control fob of a 3rd generation Toyota RAV4 can
become weak or stop working all together. To view my complete guide to
the procedure, click on the link below.
Here's the DIY page -
http://www.paulstravelpictures.com/Toyota-RAV4-Key-Fob-Battery-Replacement-Guide/index.htmlThe
steps should be the same for other Toyota, Lexus or Scion vehicles such
as the Camry, Corolla, Matrix, Venza, Sienna, Avalon, Highlander, FJ
Cruiser, FR-S, and tC.
Cheers,
Paul