TOYOTA 2011 Rav4 - Manual (Page 412)

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4-3. Do-it-yourself maintenance
Key battery
Replace the battery with a new one if it is discharged.
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You will need the following items:
● Flathead screwdriver (To prevent damage to the key, cover
the tip of the screwdriver with a rag.)
● Small Flathead screwdriver
● Lithium battery CR2016 (vehicles without smart key system)
or CR1632 (vehicles with smart key system)
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Replacing the battery (vehicles without smart key system)
Remove the cover.
Remove the module.
STEP 1
STEP 2