Is your Toyota Prius key fob starting to act up? Experiencing issues like reduced range, beeping after turning off your car, or seeing the security key icon flashing on your dashboard? These are common signs that your Prius Key Fob Battery is likely running low and needs replacing. Don’t worry, this is a simple maintenance task you can easily do yourself. Since your Prius relies on this battery to start, replacing it promptly is crucial. This guide will walk you through the process of changing your Prius key fob battery, ensuring you’re back on the road with a fully functional remote in no time.
It’s worth noting that the original batteries in Prius key fobs are often Panasonic, and they typically last for 3 to 5 years. Recognizing the signs of a weak battery and knowing how to replace it will save you time and potential inconvenience.
Tools You’ll Need:
- Precision Phillips Head Screwdriver (#0): Essential for removing the small screws in the key fob.
- Small Flat-Head Screwdriver or Paperclip: Helpful for prying open the battery cover and removing the old battery.
Parts Required:
- CR2032 Battery: This is the standard button cell battery required for your Toyota Prius key fob. You can easily find these at most drugstores, supermarkets, and online retailers.
Let’s Get Started: Step-by-Step Battery Replacement
Step 1: Remove the Mechanical Key
With the buttons on your key fob facing upwards, locate the small spring-loaded holder. Slide this holder to the left (as indicated by the RED arrow in the image). While holding it in this position, pull the mechanical key upwards and out of the fob (as shown by the BLUE arrow). Set the mechanical key aside for now.
Step 2: Open the Key Fob Casing
Flip the key fob over so the buttons are facing down. Again, find the spring-loaded holder, this time slide it to the right (RED arrow). While sliding it, gently push the back panel of the fob upwards (BLUE arrow). This back panel should slide off, revealing the internal components of your key fob. If you encounter any resistance, try using a rubber glove to improve your grip on the fob for better leverage.
Step 3: Access the Battery Compartment
Now you’ll see the internal circuit board and battery compartment. Locate the four small screws circled in RED. Use your precision Phillips #0 screwdriver to carefully remove these screws. Once the screws are removed, you’ll see a small battery cover plate. Use a paperclip or a thin flat-head screwdriver to gently pry up this cover plate. The BLUE arrow in the image indicates a good point to insert your tool for prying.
Step 4: Replace the Old Battery with a New CR2032
With the battery cover removed, you can now access the old CR2032 battery. Take note of the orientation of the battery; the positive (+) side should be facing upwards, towards the cover panel. Carefully remove the old battery and replace it with a new CR2032 battery, ensuring the positive (+) side is facing up in the same manner as the old battery.
Step 5: Reassemble Your Key Fob
Assembly is simply the reverse of the disassembly process.
- Place the battery cover plate back into position and secure it by tightening the four small screws. Be careful not to overtighten them.
- Slide the back panel of the key fob back into place until it clicks securely.
- Finally, re-insert the mechanical key into the key fob until it locks into place.
You’re Done!
You’ve successfully replaced your Toyota Prius key fob battery! Test the fob to ensure it’s working correctly. The beeping and warning lights should be gone, and your remote should function with its usual range. Replacing your Prius key fob battery is a straightforward process that can save you a trip to the dealership and keep your car reliably accessible.
Resources:
- Toyota Prius Owner’s Manual (Refer to your specific model year for detailed information)
- Prius Key FOB Transmitter – Luscious Garage (Additional insights on Prius key fobs)
- YouTube tutorials (Search for “Prius key fob battery replacement” for video guides)
