Maintenance and care

Wireless remote control/electronic key battery

~2min read
Replace the battery with a new one if it is depleted. You will need the following items:

• Flathead screwdriver • Lithium battery CR2016 (vehicles without a smart key system), or CR1632 (vehicles with a smart key system)

Replacing the battery (vehicles without 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 battery.

Insert a new battery with the “+” terminal facing up.

Replacing the battery (vehicles with a smart key system)

Take out the mechanical key.


Remove the cover.

To prevent damage to the key, cover the tip of the screwdriver with a rag.


Remove the depleted battery.

Insert a new battery with the “+” terminal facing up.

Use a CR2016 (vehicles without a smart key system) or CR1632 (vehicles with a smart key system) lithium battery • Batteries can be purchased at your Toyota dealer, local electrical appliance shops or camera stores. • Replace only with the same or equivalent type recommended by the manufacturer.
• Dispose of used batteries according to local laws. If the key battery is depleted The following symptoms may occur: • The smart key system and wireless remote control will not function properly.


• The operational range will be reduced.

CAUTION Removed battery and other parts

Keep away from children. These parts are small and if swallowed by a child, they can cause choking. Failure to do so could result in death or serious injury.

NOTICE

For normal operation after replacing the battery

Observe the following precautions to prevent accidents:

• Always work with dry hands.

Moisture may cause the battery to rust.

• Do not touch or move any other component inside the remote control.

• Do not bend either of the battery terminals.

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.