11/06/2025
Installing a new battery in a remote key fob for a Toyota Aqua (also known as Prius C)
Installing a new battery in a remote key fob for a Toyota Aqua (also known as Prius C) is a simple process you can do at home in just a few minutes. Here’s how:
What You’ll Need:
• New battery: Most Toyota Aqua key fobs use a CR1632 coin cell battery. Check the old one to be sure.
• Small flathead screwdriver or a plastic pry tool
Step-by-Step Instructions:
1. Locate the Mechanical Key (if applicable):
• Slide the release latch on the side of the fob to pull out the metal key blade.
2. Open the Fob:
• Use a flathead screwdriver or plastic pry tool to gently pry open the key fob at the seam where the two halves meet (usually near where the mechanical key was).
• Twist gently until it pops open.
3. Remove the Old Battery:
• Note the orientation (positive side up) before removing the battery.
• Use the flathead tool to lift the old CR1632 battery out of the holder.
4. Insert the New Battery:
• Place the new battery positive (+) side up.
• Press it firmly into place so it’s secure.
5. Reassemble the Fob:
• Snap the two halves back together.
• Reinsert the metal key blade.
6. Test the Remote:
• Stand near your car and press the lock/unlock buttons to make sure it’s working.
(CR 16/32 battery) ゚
