Toyota 4Runner 2021 - Wireless Remote Control;Electronic Key Battery

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6-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)
● Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart key system), or
CR1632 (vehicles with a smart key system)
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the module.
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the “+”
terminal facing up.
Wireless remote control/electronic key
battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery (vehicles without a smart key system)
1
2
3