Toyota Key Fob Battery Replacement – How to Replace, Costs, Size, What to Do When the Battery is Dead and More.
![Toyota key fob battery replacement Toyota key fob battery replacement](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-5-1-225x300.jpg)
Most Toyota models made after 2010 use a key fob, or a push to start remote key technology. This type of key has advanced security features, as well as built-in keyless entry and more.
![An inside look of Toyota key fob - battery, chip and emergency key An inside look of Toyota key fob - battery, chip and emergency key](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-12-1-225x300.jpg)
Prefer to watch a video how to replace the battery? Click here to see a list of Toyota key fobs and choose yours.
![Key fob batteries Key fob batteries](https://lost-car-keys-replacement.com/wp-content/uploads/key-fob-battery-300x225.jpg)
This type of key fob is battery operated. Once in a while, there are some issues with the key fob because of this battery. We will go over some important information and a few tips about what to do when the battery is dead, how to change the battery, cost, and some technical information.
![2021 Toyota key fob battery 2021 Toyota key fob battery](https://lost-car-keys-replacement.com/wp-content/uploads/HYQ14FBX-or-8990H-48050-key-fob-replacement-225x300.jpg)
Most of Toyota model’s key fobs use the same battery which is CR2032. This battery is very common and you can find it in most hardware stores, AutoZone, locksmith shop, and online. You can order it here.
Price of Toyota key fob battery: Usually less than $6
![Toyota transponder key battery replacement Toyota transponder key battery replacement](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-transponder-key-battery-replacement-4-min-1-225x300.jpg)
We also recommend getting a cover for the key fob to keep it in better condition. Toyota key fob cover cost about $10-$15 and definitely worth the price. You can order it online here
Before we get into some specific information, here is some useful information you must know:
First, if you are locked out of your car because the key fob battery is dead you can use the emergency key provided with the key to unlock the car door.
![Toyota key fob emergency key to be used to unlock the doors in case the battery died Toyota key fob emergency key to be used to unlock the doors in case the battery died](https://lost-car-keys-replacement.com/wp-content/uploads/Key-fob-and-emergency-key-4-225x300.jpg)
![Unlock your car door with the emergency key provided with the key fob (2016 Toyota key fob) Unlock your car door with the emergency key provided with the key fob (2016 Toyota key fob)](https://lost-car-keys-replacement.com/wp-content/uploads/Key-fob-and-emergency-key-6-225x300.jpg)
![2018 Toyota key fob and emergency key 2018 Toyota key fob and emergency key](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-and-emergency-key-7-225x300.jpg)
![All Toyota key fobs have an emergency key to unlock the doors and trunk like in this picture All Toyota key fobs have an emergency key to unlock the doors and trunk like in this picture](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-1-scaled-e1608550337817-225x300.jpg)
How to start Toyota with a dead key fob?
![An inside look of Toyota key fob An inside look of Toyota key fob](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-1-6-225x300.jpg)
You can start your Toyota by pushing the “Start” button with your key fob. The car’s computer recognizes the chip inside the key fob and authorizes the process.
![Push the "start" button with your Toyota key fob to start the vehicle in case the battery died Push the "start" button with your Toyota key fob to start the vehicle in case the battery died](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-coding-on-site-by-an-automotive-locksmith-4-225x300.jpg)
This way, you will be able to start your vehicle EVEN if the key fob battery is dead.
![2020 Toyota flip key battery replacement 2020 Toyota flip key battery replacement](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-flip-key-battery-replacement-2-1-225x300.jpg)
Technical information for CR-2032 battery: (Click to get it online)
Diameter (mm): 20
Height (mm): 3.2
Voltage (V): 3
![An inside look of Toyota key fob battery replacement An inside look of Toyota key fob battery replacement](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-17-300x169.jpg)
Technical information for CR-2450 battery: (Click to get it online)
Diameter (mm): 24.5
Height (mm): 5.0
Voltage (V): 3
![Opening up the Toyota key fob to replace the battery Opening up the Toyota key fob to replace the battery](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-14-300x169.jpg)
Technical information for CR-2025 battery: (Click to get it online)
Diameter (mm): 20
Height (mm): 2.5
Voltage (V): 3
![Process of Toyota key fob battery replacement takes about 2 minutes Process of Toyota key fob battery replacement takes about 2 minutes](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-4-e1608550586359-300x169.jpg)
Technical information for CR-2016 battery: (Click to get it online)
Diameter (mm): 20
Height (mm): 1.6
Voltage (V): 3
![3 Buttons HYQ14AAB remote requires CR-1632 battery and 4 buttons key fob requires CR-2032 battery 3 Buttons HYQ14AAB remote requires CR-1632 battery and 4 buttons key fob requires CR-2032 battery](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-fob-battery-replacement-6-300x169.jpg)
Technical information for CR-1632 battery: (Click to get it online)
Diameter (mm): 16
Height (mm): 3.2
Voltage (V): 3
Programming information:
![Key coding machine for Toyota car keys Key coding machine for Toyota car keys](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-key-coding-4-225x300.jpg)
After replacing the key fob battery, there is no need to do any special programming. The key fob should work as usual.
However, if you just bought a new key fob, you will need to have it programmed to start the car. This can be done by an automotive locksmith or a dealership. Click here for more information about key fob programming.
![Toyota transponder key battery replacement Toyota transponder key battery replacement](https://lost-car-keys-replacement.com/wp-content/uploads/Toyota-transponder-key-battery-replacement-3-min-2-225x300.jpg)
Below, are Toyota key fobs and transponder keys that are battery operated. For your convenience, we made a video of how to replace the battery (We will keep updating this page with additional videos of new key fobs and transponder keys).
Toyota RAV4, Venza key fob battery replacement (e.g. HYQ14FBX)
[embedyt] https://youtu.be/he01TjeSfQ8[/embedyt]
Toyota 86, Avalon, Camry, Corolla, C-HR, Highlander, Rav-4, Prius key fob battery replacement (e.g. HYQ14FBC)
[embedyt] https://youtu.be/42xZTkcShTI[/embedyt]
Toyota 86, 4-Runner, Avalon, Camry, Corolla, Highlander, Land Cruiser, Prius, RAV4, Sequoia, Tacoma, Venza key fob battery replacement (e.g. HYQ14AAB)
[embedyt] https://youtu.be/zr32VzqYb6w[/embedyt]
Toyota Camry, Corolla, C-HR, RAV-4 transponder flip key battery replacement (e.g. HYQ12BFB)
[embedyt] https://youtu.be/ecsaBXmZsjE[/embedyt]
Toyota 4 Runner, Avalon, Camry, Corolla, Matrix, RAV4, Venza, Yaris transponder key battery replacement (e.g. HYQ12BBY)
[embedyt] https://youtu.be/RoUAGr-on1k[/embedyt]
Toyota 86, 4 Runner, Camry, Corolla, Highlander, Prius, RAV4, Sequoia, Tacoma transponder key battery replacement (e.g. HYQ12BDM)
[embedyt] https://youtu.be/ZHnr7VmDHIA[/embedyt]