Aug 25, 2025
Toyota key fob showing lock, unlock, trunk, and alarm buttons – used in Toyota Vallejo’s guide to key fob battery replacement and new key fobs.

If you drive a Toyota in Vallejo, Benicia, American Canyon, or anywhere in Solano County, having a fully functional Toyota key fob is essential. Your key fob controls convenient features like keyless entry, remote start, and the panic button, helping make your daily drive safer and more convenient.

But when the key fob battery dies, you could find yourself locked out or unable to start your Toyota. The good news? Replacing a Toyota key fob battery is quick, affordable, and hassle-free, and the team at Toyota Vallejo is here to make the process easy.

How to Replace a Toyota Key Fob Battery

1. Open the fob

  • New Models: Pull out the hidden key and insert it into the slot to open the case.
  • Older Models: Use a small flathead screwdriver to gently pry open the notch.

2. Access the battery

  • Lift the circuit board to reveal the battery

3. Replace the battery

  • Most Toyota models use a CR2032 battery (check owner’s manual to confirm the correct type)
  • Insert the new battery with the correct +/– orientation

4. Test your fob

  • Lock/unlock your Toyota and try the remote start. If it doesn’t work, readjust the battery or check the contacts.

What if Your Toyota Key Fob Is Broken?

If your Toyota key fob isn’t working due to damage, we offer:

  • New key cutting for worn or broken blades

  • Replacement fob cases for cracked shells

  • Complete key fob replacements for severe physical or water damage

Toyota Key Replacement in Vallejo

If your Toyota key fob is lost or no longer working, Toyota Vallejo can provide a full replacement. A new key fob typically costs between $200 and $350, depending on your vehicle model. The reason for this cost is that replacement isn’t just about getting a new key, it involves two important steps:

  1. Cutting a new physical key to fit your specific vehicle.
  2. Programming the electronic chip inside the fob so it communicates correctly with your car’s security system.

This process ensures that your new key fob is fully functional and secure, matched precisely to your vehicle.

Why Choose Toyota Vallejo?

  • Factory-trained Toyota technicians

  • Genuine OEM parts and batteries

  • Quick, reliable service for Vallejo and surrounding areas

Get Your Key Fob Fixed Today

From Toyota key fob battery replacements to full key programming, Toyota Vallejo has you covered. Contact us today for quick service so you can get back on the road with confidence.

Contact us today