Maintenance and care

Wireless remote control/ electronic key battery

~1min read

Replace the battery with a new one if it is depleted.

You will need the following items:

  • Flathead screwdriver
  • Lithium battery CR2032

Replacing the battery

  • Vehicles without a smart key system
Toyota Sienna. Replacing the battery

  1. Remove the cover using a coin protected with tape etc.
Toyota Sienna. Replacing the battery

  1. Remove the depleted battery.

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

  • Vehicles with a smart key system
Toyota Sienna. Replacing the batter

  1. Take out the mechanical key.
Toyota Sienna. Replacing the batter

  1. Remove the cover.

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

Toyota Sienna. Replacing the batter

  1. Remove the depleted battery.

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

Use a CR2032 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 (if equipped) and wireless remote control will not function properly.
  • The operational range will be reduced.
WARNING

Removed battery and other parts

These parts are small and if swallowed by a child, they can cause choking.

Keep away from children. 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 components inside the remote control.
  • Do not bend either of the battery terminals.

Test yourself

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