english french

Toyota bZ4X Owner's Manual: Electronic Key Battery

Replace the battery promptly when it is depleted.

If the key battery is depleted:

You may notice that the smart key system and wireless remote control do not function properly, and the operational range will be noticeably reduced.

Items to Prepare

Before replacing the battery, gather the following tools and components:

Use a CR2450 Lithium Battery

Always replace the key battery with a CR2450 lithium battery, or an equivalent type as recommended by the manufacturer. These batteries can be purchased from your Toyota dealer, local electrical appliance shops, or camera stores. Remember to dispose of used batteries in accordance with local regulations.

Recommendations

Keeping your electronic key battery in optimal condition is essential for ensuring the smart key system and remote control operate flawlessly. For owners of the Toyota bZ4X, this attention to detail not only guarantees reliable access and start-up but also enhances the overall convenience and security of the vehicle. Regular battery replacement prevents unexpected lockouts and helps maintain a seamless user experience.

Replacing the battery

  1. Release the lock and remove the mechanical key.

Replacing the battery

  1. Remove the key cover.

Use a screwdriver of an appropriate size. Forcedly prying may cause the cover damaged.

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

Replacing the battery

  1. 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.

When removing the battery, use a screwdriver of an appropriate size.

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

Replacing the battery

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

WARNING

Battery Precautions

Follow these battery precautions precisely-failure to do so can lead to death or serious injury.

To Prevent Battery Explosion or Leakage of Flammable Substances

NOTICE

When Replacing the Battery

Use a flathead screwdriver that is appropriately sized. Excessive force could deform or damage the battery cover.

For Normal Operation After Battery Replacement

To ensure safe function and prevent accidents after replacing the battery, adhere to these precautions:

Safety Recommendations

Proper handling of the battery is essential to ensure the safety and reliable function of your electronic key system. For owners of the Toyota bZ4X, adherence to these precautions not only protects against potential hazards-such as battery explosions and chemical burns-but also ensures that your vehicle’s advanced features continue to operate without interruption. By consistently following these guidelines, you safeguard both your personal well-being and your investment.

Remember, using the correctly sized tools and working with dry, secure conditions are vital practices. Always dispose of old batteries according to local regulations, and if any battery-related issue occurs, seek professional assistance immediately.

Air Conditioning Filter
The air conditioning filter is a critical component for delivering fresh, cool air into the cabin, and it must be replaced regularly to ensure optimal performance of the air conditioning system. ...

Checking and Replacing Fuses
If any electrical components are not working, a blown fuse may be the cause. In such cases, check and replace the fuses as needed. Procedure for Checking and Replacing Fuses Turn off ...

Other articles:

If the EV System Will Not Start
The reasons for an inoperative EV system vary, so it is essential to check each possibility and perform the corresponding procedure. The EV system will not start despite following the correct starting procedure The issue could be caused by one or more of the following: ...

Hyundai Rear Cross Traffic Alert (RCTA) for Enhanced Backing Safety
The Rear Cross Traffic Alert (RCTA) function in your Hyundai utilizes the BSM rear side radar sensors, which are strategically installed behind the rear bumper. This innovative safety feature is designed to greatly assist the driver in checking those hard-to-see areas directly to the left and right ...

Manuals

Toyota bZ4X - Owner's Manual (2021-2024)

Toyota bZ4X

Toyota bZ4X Owner's Manual (2021-2025)

👉 Read the manual