Is your Toyota Prius key fob acting up? Experiencing issues like decreased range, inconsistent locking/unlocking, or warning beeps from your dashboard after turning off your vehicle? These are common signs that your key fob battery is likely nearing the end of its life and needs replacing. Fortunately, Changing The Battery In A Toyota Prius Key Fob is a straightforward process you can easily accomplish at home with a few simple tools. This guide will walk you through each step to get your key fob working like new again.
Before you begin, it’s important to note that unlike traditional keys, your Prius relies on the key fob for starting the vehicle. Ignoring the warning signs of a low battery could leave you stranded. Typically, these batteries last for 3-5 years, so proactive replacement when you notice these symptoms is a smart move to avoid inconvenience.
Tools You’ll Need
- Precision Philips head screwdriver (#0 recommended)
- Small flat-head screwdriver or sturdy paperclip
Parts Required
- One CR2032 battery (This is the standard battery for 2004-2009 Toyota Prius key fobs)
Step-by-Step Guide to Changing Your Prius Key Fob Battery
Step 1: Remove the Emergency Key
To begin, locate the small release lever on your key fob, positioned near where the key ring attaches. With the buttons facing upwards, slide this spring-loaded lever to the left (as indicated by the red arrow in the image). While holding the lever, gently pull the emergency key upwards and out of the fob (as shown by the blue arrow). Set the emergency key aside.
Step 2: Open the Key Fob Casing
Now, flip the key fob over so the buttons are facing downwards. Locate the same spring-loaded lever you used in Step 1. This time, slide the lever to the right (red arrow). While holding it in this position, push the back panel of the key fob upwards (blue arrow). This back panel should slide off relatively easily, exposing the internal components of the key fob. If you are having trouble getting a grip, try using a rubber glove for better traction.
Step 3: Access the Battery Compartment
With the back cover removed, you will see a small circuit board and a battery cover plate secured by four screws. Using your Philips #0 screwdriver, carefully remove the four screws circled in red in the image. Once the screws are removed, use a paperclip or a thin flat-head screwdriver to gently pry up the battery cover plate. The blue arrow in the image indicates a good spot to insert your tool for prying. Be gentle to avoid damaging the plastic or internal components.
Step 4: Replace the Old Battery with a New CR2032
With the battery cover plate removed, you can now access the old CR2032 battery. Take note of the orientation of the battery before removing it; 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 orientation as the old battery.
Step 5: Reassemble Your Key Fob
Assembly is simply the reverse of the disassembly process. Replace the battery cover plate and secure it with the four Philips head screws. Slide the back panel back onto the key fob until it clicks into place. Finally, re-insert the emergency key until it locks securely.
Final Steps
Once reassembled, test your key fob to ensure it’s functioning correctly. Your Prius key fob should now be powered by a fresh battery, resolving any previous issues with range or performance. If you continue to experience problems after replacing the battery, consult your Toyota Prius owner’s manual or consider seeking assistance from a professional automotive technician or your local Toyota dealership. Regular maintenance, including timely battery replacement, will help ensure the longevity and reliability of your Toyota Prius key fob.
