Toyota Sienna 2010-2021 Owners Manual: Wireless remote control/ electronic key battery

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

1. Remove the cover using a coin protected with tape etc.

2. Remove the depleted battery.

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

• Vehicles with a smart key system

1. Take out the mechanical key.

2. Remove the cover.

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

3. 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.