Someone holding car keys our the passenger side window of a car

What do I do if my Toyota Smart Key battery dies?

In recent years, the advancement of technology has added some pretty cool new features to modern cars like push-button start and keyless entry. Now, it’s hard to think back to the times when we needed to rummage through our belongings for keys while our hands were full. However, new technology doesn’t come without some drawbacks. Occasionally, Toyota Smart Keys will stop working. This is usually just a case of dead batteries and is easily resolved by replacements. If you find yourself struggling to get into your Toyota when your Smart Key malfunctions, read about how to unlock and start your car manually below.

Hand holding car keys in front of a white car door

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Unlocking and Starting Your Toyota When Your Smart Key Malfunctions

Your Toyota Smart Key has a traditional metal key housed inside of it in case the key fob battery ever dies. All you need to do is push the button on the bottom of your key fob to gain access to the metal key. Then, unlock your doors in the traditional manner. To start your car, depress the brake and push the start button like normal while holding the key fob as close as you can to the start button. This should help a weak battery signal reach the car allowing you to start it right up. Just don’t forget to replace your battery before the fob is completely dead.

Changing the Battery

To change the battery in your Toyota key fob, take the metal key outside of the fob and then use the opening left behind to gently pry the fob open. Inside, you will find a small green circuit board that houses the small battery. Pop the old battery off and replace it with a new battery. Then, put your key fob back together and re-insert the metal key and it should be as good as new.


Ackerman Toyota Is Your Go-To Source for Toyota Support in St. Louis, MO

Do you still need additional help? Reach out to the team at Ackerman Toyota in St. Louis and we can help troubleshoot your issues, get you set up with a key fob replacement, or help you get a service appointment to address any maintenance or repair needs.