Toyota Avalon Owners Manual: Electronic key battery

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

You will need the following items:

  • Flathead screwdriver
  • Small flathead screwdriver
  • Lithium battery CR2032

Replacing the battery

1. Release the lock and remove the mechanical key.

Do-it-yourself maintenance

2. Remove the key cover.

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

Do-it-yourself maintenance

3. Remove the depleted battery using a small flathead screwdriver.

When removing the cover, the electronic key module may stick to the cover and the battery may not be visible. In this case, remove the electronic key module in order to remove the battery.

Insert a new battery with the "+" terminal facing up.

Do-it-yourself maintenance

4. When installing the key cover and mechanical key, install by conducting 2 and 1 with the directions reversed.

5. Operate the or switch and check that the doors can be locked/unlocked.

■When replacing the key battery Be careful not to lose the battery or any other small parts.

■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 and wireless remote control will not function properly.
  • The operational range will be reduced.

■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.



■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.
    Air conditioning filter

    Checking and replacing fuses

    See More:

    Toyota Avalon Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Hv Model): Freeze Frame Data
    FREEZE FRAME DATA DESCRIPTION (a) Whenever a lane departure alert system (w/ steering control) DTC is stored, the forward recognition camera stores the current vehicle state (ECU and sensor information) as Freeze Frame Data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn th ...

    Toyota Avalon Owners Manual

    Toyota Avalon Service & Repair Manual

    © 2021 Copyright