Is your 2005-2009 Toyota Prius key fob acting up? You might be experiencing reduced range, warning beeps after turning off your car, or the security key icon flashing on your dashboard. These are common signs that your key fob battery is getting weak and needs replacing. Luckily, changing the battery in your Prius key fob is a simple task you can easily do yourself, saving you time and money compared to dealership service. This guide will walk you through each step to replace your 2005 Prius Key Fob Battery and get you back on the road with a fully functional remote.
Tools You’ll Need
Before you begin, gather these simple tools:
- Precision Phillips head screwdriver: A #0 size is ideal for the small screws in your key fob.
- Small flat-head screwdriver or paperclip: This will help with prying open the battery compartment cover.
Step-by-Step Guide to Replacing Your Prius Key Fob Battery
Follow these easy steps to replace your 2005 Prius key fob battery:
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 (indicated in RED in the image above) while simultaneously pulling the mechanical key upwards and out (indicated in BLUE). Set the mechanical key aside. Removing the mechanical key from the Toyota Prius key fob.
Step 2: Open the Key Fob Casing
Flip the key fob over so the buttons are facing down. Again, locate the spring-loaded holder, and this time slide it to the right (RED). While holding it in this position, push the back panel upwards (BLUE). This back panel should slide off, revealing the battery compartment. If you are having trouble sliding the panel, try using a rubber glove for a better grip. Sliding the back panel off the Toyota Prius key fob to access the battery compartment.
Step 3: Access and Replace the Battery
Using your Phillips #0 screwdriver, remove the four small screws circled in RED. Once the screws are removed, use a paperclip or thin flat-head screwdriver to gently pry off the battery cover plate. The blue arrow in the image indicates a good spot to pry from. Underneath the cover plate, you’ll find the CR2032 battery. Removing the battery cover plate to expose the CR2032 battery in the Toyota Prius key fob.
Take out the old CR2032 battery and replace it with a new one. Ensure the positive (+) side of the battery is facing upwards, towards the cover panel. Panasonic batteries are often the original equipment, but any quality CR2032 battery will work. Replacing the CR2032 battery in the Toyota Prius key fob, ensuring correct polarity.
Step 4: Reassemble the Key Fob
Reassemble your Prius key fob by reversing the removal process. Place the battery cover plate back on and secure it with the four screws. Slide the back panel back into place until it clicks. Finally, re-insert the mechanical key until it locks into position.
Tips for Key Fob Battery Maintenance
- Lifespan: Expect to replace your Prius key fob battery every 3-5 years, depending on usage.
- Early Replacement: Replace the battery as soon as you notice any warning signs to avoid being stranded with a non-functional key fob.
- Battery Type: Always use a CR2032 battery for your 2005-2009 Toyota Prius key fob.
- Spare Battery: Keep a spare CR2032 battery in your glove compartment so you’re always prepared.
By following these simple steps, you can easily replace your 2005 Prius key fob battery and ensure your remote functions reliably. This DIY task is a great way to maintain your vehicle and avoid unnecessary dealership costs.
