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The 2011 Prius has a key fob with a detachable key that houses a small battery. When this battery dies, the key fob will no longer work and must be replaced. The good news is, replacing the battery in the key fob is easy and only takes a few minutes.
If you own a 2011 Toyota Prius, you may have noticed that your key fob battery is starting to die. Here’s what you need to know about replacing the battery in your key fob.
The first thing you’ll need to do is purchase a replacement battery.
You can find these at most electronics stores or online. Be sure to get the right size battery for your key fob – they come in different sizes depending on the model of key fob.
Once you have your replacement battery, it’s time to replace the old one.
Start by removing the back cover of the key fob – there should be a small screw or tab that you can use to pop it off. With the back cover removed, you should see the old battery nestled inside. Carefully remove it and insert the new one, being careful not to touch any of the electronic components with your fingers (which could damage them).
Once the new battery is in place, reattach the back cover and test out your key fob to make sure it’s working properly again. If all goes well, you shouldn’t have any more trouble with a dying key fob battery!
2010-2015 Toyota Prius Key FOB battery replacement
2011 Toyota Prius Key Fob Battery Replacement
If you own a 2011 Toyota Prius, you may have noticed that your key fob isn’t working as well as it used to. This is most likely due to a dead battery. Thankfully, replacing the battery in your key fob is a quick and easy process that you can do at home.
To replace the battery in your 2011 Toyota Prius key fob, start by removing the back cover of the fob. There are usually two small screws or snaps holding the cover in place. Once the cover is off, you should see a small coin-sized battery inside.
Remove this battery and replace it with a new one of the same size and type. Once you’ve replaced the battery, reassemble the key fob and test it out. Your key fob should now be working like new!
If it’s not, then there may be another issue with your key fob that will need to be addressed by a professional.

Credit: www.carandtruckremotes.com
What Kind of Battery Does a Prius Key Fob Take?
The Prius key fob battery is a 3V lithium coin cell.
How Do I Change the Battery in My 2011 Prius Key Fob?
If your 2011 Prius key fob starts to act up, it might be time to change the battery. Here’s how to do it:
1. Start by prying open the back cover of the key fob with a flathead screwdriver or a similar tool.
Be careful not to damage the casing.
2. Once the back is off, you should see the battery inside. It will be held in place by a small metal clip.
3. Use a small flathead screwdriver or something similar to pry the clip up and release the battery. Then, simply pull out the old battery and insert the new one in its place. Make sure that the positive side (the side with the “+” symbol) is facing up.
4. Close up the back cover of the key fob and you’re all set!
What Battery Does a 2010 Prius Key Fob Use?
Most key fobs use a CR2032 battery. This is a 3 volt coin-shaped battery that is commonly used in small electronics. You can find these batteries at most stores that sell electronic devices or batteries.
Can You Use a 2032 Battery in a Key Fob?
Yes, you can use a 2032 battery in a key fob. Key fobs typically use CR2032 batteries, which are 3 volt lithium coin cells. The 2032 batteries are slightly larger in diameter than the CR2032 batteries, but they will still fit in the key fob’s battery compartment.
If your key fob is not working properly, it could be due to a dead or dying battery. Replacing the battery is a relatively simple and inexpensive fix that you can do yourself. All you need is a new 2032 battery and a small screwdriver.
To replace the battery in your key fob:
1. Remove the screw from the back of the key fob using a small screwdriver.
2. Pry open the back of the key fob to access the battery compartment.
3. Remove the old CR2032 battery from the compartment and discard it safely.
4. Insert a new 2032 battery into the compartment, making sure that the positive side (the side with + sign) is facing up.
Conclusion
If you own a 2011 Toyota Prius, you may have noticed that your key fob is not working as well as it used to. This is because the battery in your key fob is dying. Fortunately, changing the battery in your key fob is a quick and easy process.
Here’s what you need to do:
3. Pry open the back of the key fob with the screwdriver. Be careful not to damage any of the electronic components inside. 4. Take out the old battery and replace it with a new CR2032 battery (make sure that it’s facing the right way).
5. Replace the back cover and screw it shut with the Phillips head screwdriver.