Toyota Corolla Manuals

Toyota Corolla: Wireless remote control/ electronic key battery / Replacing the battery

► Vehicles without a smart key system

1 Remove the key cover.

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

Toyota Corolla. Replacing the battery

2 Remove the battery cover.

If the battery cover is difficult to remove, lift the edge to remove it.

Toyota Corolla. Replacing the battery

3 Remove the depleted battery using a small flathead screwdriver.

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

Toyota Corolla. Replacing the battery

4 Install the battery cover with the tab facing up.

Push the entire edge of the battery cover into the key.

Toyota Corolla. Replacing the battery

5 Install the key cover.

Align the key cover with the key and then press it straight into the key.

Make sure that the key cover is securely installed without any gaps between it and the key.

Toyota Corolla. Replacing the battery

6 Operate the Toyota Corolla. Replacing the battery or Toyota Corolla. Replacing the battery switch and check that the doors can be locked/unlocked.

► Vehicles with a smart key system

1 Release the lock and remove the mechanical key.

Toyota Corolla. Replacing the battery

2 Remove the key cover.

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

Toyota Corolla. Replacing the battery

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.

Toyota Corolla. Replacing the battery

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

5 Operate the Toyota Corolla. Replacing the battery or Toyota Corolla. Replacing the battery switch and check that the doors can be locked/unlocked.

WARNING

■ Battery precautions

Observe the following precautions. Failure to do so may result in death or serious injury.

  • Do not swallow the battery. Doing so may cause chemical burns.
  • A coin battery or button battery is used in the key. If a battery is swallowed, it may cause severe chemical burns in as little as 2 hours and may result in death or serious injury.
  • Keep away new and removed batteries from children.
  • If the cover cannot be firmly closed, stop using the key and stow the key in the place where children cannot reach, and then contact your Toyota dealer.
  • If you accidentally swallow a battery or put a battery into a part of your body, get emergency medical attention immediately.

■ To prevent battery explosion or leakage of flammable liquid or gas

  • Replace the battery with a new battery of the same type. If a wrong type of battery is used, it may explode.
  • Do not expose batteries to extremely low pressure due to high altitude or extremely high temperatures.
  • Do not burn, break or cut a battery.

NOTICE

■ When replacing the battery

Use a flathead screwdriver of appropriate size. Applying excessive force may deform or damage the cover.

■ 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.

NOTICE

■ When removing the battery cover (vehicles without a smart key system)

Do not forcibly remove the battery cover, otherwise it may be damaged. If the battery cover is difficult to remove, lift the edge to remove it.

    Wireless remote control/ electronic key battery

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    Toyota Corolla 2019-2024 Owners Manual: If the electronic key does not operate properly


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