Replace the battery with a new one if it is depleted.
As the key may be damaged if the following procedure is not performed properly, it is recommended that key battery replacement be performed by your Toyota dealer.
■If the key battery is depleted
The following symptoms may occur:
Items to prepare
■Use a CR2016 or CR2450 lithium battery
Replacing the battery
Vehicles without a smart key system
1. Remove the cover.
To prevent damage to the key, cover the tip of the flathead screwdriver with a rag.
2. Remove the module.
3. 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.
4. Install the cover.
Align the cover with the key and then press it straight into the key.
Make sure that the cover is securely installed without any gaps between it and the key.
5. Operate the or 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.
2. Remove the key cover.
To prevent damage to the key, cover the tip of the flathead screwdriver with a rag.
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.
4. When installing the key cover and mechanical key, install by conducting step 2 and step 1 with the directions reversed.
5. Operate the or 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.
Doing so may cause chemical burns.
■To prevent battery explosion or leakage of flammable liquid or gas
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:
Moisture may cause the battery to rust.