Key battery
• Flathead screwdriver (To prevent damage to the key, cover the tip of the screwdriver with rag.)
• Small Phillips-head screwdriver • Lithium battery
Vehicles with smart key system: CR1632 Vehicles without smart key system: CR2025
- Replacing the battery (vehicles with smart key system)
Take out the mechanical key.

Remove the cover.

Remove the depleted battery.
Insert a new battery with the “+” terminal facing up.
- Replacing the battery (vehicles without smart key system)
Remove the cover.

Remove the module.

Open the case cover using a flathead screwdriver protected with tape etc. and remove the depleted battery.
Insert a new battery with the “+” terminal facing up.
- If the electronic key battery is discharged The following symptoms may occur. • The smart key system and wireless remote control will not function properly. • The operational range is reduced. - Use a CR1632 (vehicles with smart key system), or CR2025 (vehicles without smart key system) lithium battery • Batteries can be purchased at your Toyota dealer, jewelers, or camera stores. • Replace only with the same or equivalent type recommended by a Toyota dealer.• Dispose of used batteries according to the local laws.
CAUTION - Removed battery and other partsThese 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.
NOTICE- 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 components inside the electronic key.
• Do not bend the battery terminals.
Test yourself
A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.