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How to change the battery in Toyota RAV4 key fob?
Push in the button on the side of your Smart Key, and pull the tab holding in your emergency (manual) key. This allows you to unlock the car if your Smart Key's battery is flat. Once you remove the manual key you can split the Smart Key case in half using the emergency key, exposing the battery. Pull down on the tab holding the battery in and the battery will pop out. Replace it with a new CR1632 battery (some use a CR2032 battery) and snap the Smart Key back together!
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