Is your Toyota Prius key fob starting to act up? Noticing a decreased range, or perhaps your Prius beeps at you after shutting off the engine? These are common signs that your key fob battery is getting weak and needs replacing. Don’t worry, this is a simple DIY task that you can easily accomplish at home in just a few minutes. This guide will walk you through the process of changing the battery in your 2004-2009 Toyota Prius key fob, ensuring you can keep your car running smoothly and securely.
Tools You’ll Need
Before you begin, gather these simple tools:
- Precision Phillips Head Screwdriver: A #0 size screwdriver is ideal for the small screws in your key fob.
- Small Flat-head Screwdriver or Paperclip: This will help to gently pry open the battery compartment.
Parts You’ll Need
- CR2032 Battery: You’ll need one CR2032 3V lithium battery. This is a common type of battery readily available at most drugstores, supermarkets, and online retailers.
Step-by-Step Guide to Changing Your Prius Key Fob Battery
Follow these easy steps to replace the battery in your Toyota Prius key fob:
Step 1: Remove the Mechanical Key
With the buttons on your key fob facing upwards, locate the small spring-loaded release. Slide this holder to the left (as indicated by the red arrow in the image above) and simultaneously pull the mechanical key upwards and out of the fob (as shown by the blue arrow). Set the mechanical key aside; you won’t need it for the battery replacement process, but it’s good to keep it in a safe place.
Step 2: Open the Key Fob Casing
Flip the key fob over so the buttons are facing down. Again, locate the spring-loaded holder, this time slide it to the right (red arrow). While holding it in this position, push the back panel upwards (blue arrow). This back panel should slide off relatively easily, revealing the inside of the key fob. If you encounter slight 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 components of the key fob, including a small battery cover plate secured by screws. Using your Phillips #0 screwdriver, carefully remove the four small 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 and gently lift the plate.
Step 4: Replace the Old Battery
With the battery cover plate removed, you can now access the CR2032 battery. Take note of the orientation of the old battery before removing it. Typically, the positive (+) side of the battery faces upwards, towards the cover panel. Remove the old battery and insert the new CR2032 battery in the same orientation, ensuring the positive (+) side is facing up.
Step 5: Reassemble Your Key Fob
Reassembly is simply the reverse of the disassembly process. Carefully place the battery cover plate back into position and secure it with the four small screws you removed earlier. Ensure they are snug but not over-tightened. Next, slide the back panel of the key fob back into place until it clicks securely. Finally, slide the mechanical key back into the key fob until it locks.
Tips for Maintaining Your Prius Key Fob Battery
- Lifespan: Key fob batteries typically last between 3-5 years, depending on usage and environmental factors.
- Warning Signs: Be aware of the common signs of a weak key fob battery, such as decreased operating range, the car beeping upon shutdown, or the security key icon flashing on your dashboard.
- Battery Type: Always use a CR2032 battery for replacement to ensure proper function and longevity of your key fob. Panasonic is a common original manufacturer, but reputable brands like Energizer or Duracell are also excellent choices.
By following these simple steps, you can easily change your Toyota Prius key fob battery and avoid the inconvenience of a non-functional remote. This DIY task will save you time and money compared to visiting a dealership for a simple battery replacement. Keep your Prius key fob working perfectly and enjoy the convenience it provides!
