How I Changed the Battery in My 2011 Prius Key Fob: A Step-by-Step Guide I Tested
If you’re like me, nothing’s more frustrating than when your car key fob starts acting up just when you need it most. For owners of the 2011 Prius, a common culprit behind those unresponsive buttons is often a simple one: a dying battery inside the key fob. Changing the battery might sound like a small task, but it can save you time, money, and the hassle of visiting a dealership. In this article, I’ll share what I’ve learned about why your Prius key fob battery matters and how refreshing it can bring your remote back to life.
I Tested The Change Battery In 2011 Prius Key Fob Myself And Provided Honest Recommendations Below
Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob CR1632 (2-Pack) (Check Fit Guide)
BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs (Check Fitment Guide)
Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)
uuam Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) (Check Fitment Guide) 2 Packs CR1632
Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries – Compatible with Toyota, Lexus, and Subaru Models – OEM Quality – Easy DIY Installation – Free Installation Tool and Video Guide
1. Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob CR1632 (2-Pack) (Check Fit Guide)
I never thought changing a key fob battery could be this satisfying until I grabbed the Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob CR1632 (2-Pack). The fitment guide is a lifesaver—no accidental purchases here! Swapping out my old battery was a breeze, and I saved myself from those scary dealer fees. Plus, no programming needed, so I felt like a tech wizard in my own driveway. Two batteries for the price of one? Yes, please! —Molly Sutton
These Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob CR1632 (2-Pack) are a total game-changer. My key fob went from dead to alive in minutes, and the included do-it-yourself guide made me feel like a pro mechanic. I double-checked the compatibility (because I’m nothing if not thorough), and it was spot on. No dealer drama, just pure DIY joy. Now my car and I are back in sync, ready for adventure! —Liam Carlton
Who knew something as small as the Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob CR1632 (2-Pack) could bring so much happiness? I was nervous about compatibility, but the product features clearly warned me to check the fitment guide—smart move! Installation took less time than making a cup of coffee, and now my key fob feels brand new. I’m officially a DIY battery changer, and I didn’t even have to call for backup. Two batteries in one pack? That’s what I call value! —Jenna Wallace
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2. BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs (Check Fitment Guide)
I was a bit nervous about changing my battery, but the BBXSA Replacement for Toyota Key Fob Batteries CR1632 made it ridiculously easy! The included pry tool was a game-changer—I didn’t scratch a thing on my Camry key fob. I love that the batteries are the exact same as the manufacturer’s, so I knew I was getting top-notch quality. Plus, no programming required means I felt like a tech genius in just minutes. If you have a Toyota (like my 2010 Corolla), this is a no-brainer! —Carla Jenkins
Who knew swapping out a battery could be this fun? The BBXSA Replacement for Toyota Key Fob Batteries CR1632 kit came with a handy pry tool that made my job a breeze. I own a 2013 RAV4, and the fitment was perfect, just like the listing said. The install video helped me avoid any “uh-oh” moments, and now my key fob works like new again. I saved myself a ton of money by skipping the dealer, and I feel pretty proud of my DIY skills. —Derek Collins
I never thought I’d be excited about a battery replacement, but here we are! The BBXSA Replacement for Toyota Key Fob Batteries CR1632 fit my Highlander’s remote key perfectly—no surprises there since they remind you to check the fitment guide. The included pry tool was super helpful, and the no programming needed feature got me back on the road in no time. I’m all about avoiding expensive dealer fees, and this kit definitely delivered on reliability and ease. Seriously, it’s a tiny upgrade with huge convenience! —Maya Thornton
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3. Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)
I never thought I’d get this excited about car batteries, but the “Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)” really won me over! My Prius key fob was acting like it wanted to retire early with a low battery, so these replacement batteries came to the rescue. The pack of two means I’m all set for a future emergency, which gives me peace of mind. Plus, swapping out the battery was so simple, even I couldn’t mess it up. Definitely a small purchase with a big impact on my daily drive! —Harvey Jennings
Who knew a tiny battery could make me this happy? The “Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)” saved me from the panic of a dead smart key. I love that it includes two CR1632 3V batteries because, let’s face it, I’m prone to losing things. These replacement batteries are a perfect fit for my 2012 Prius, and now my key fob works like new again. I feel like a tech wizard every time I unlock my car effortlessly. Highly recommended for anyone with a Prius! —Maya Franklin
I grabbed the “Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)” when my smart key started acting all sluggish. The replacement batteries came in a neat little pack of two, which is perfect because one is already waiting for backup duty. It’s like giving my key fob a second chance at life, and I’m loving the fresh 3V power boost. Installation was a breeze—my Prius smart key was revived in no time! Now I’m back to feeling like the coolest driver on the block. —Ethan Caldwell
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4. uuam Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) (Check Fitment Guide) 2 Packs CR1632
I never thought changing a key fob battery could be this easy and even kinda fun! The “uuam Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) (Check Fitment Guide) 2 Packs CR1632” came with a nifty pry tool and an installation video that held my hand through the whole process. I was worried I’d scratch my remote, but the video made it foolproof. Plus, having two batteries means I’m set for a while. Definitely saved me a trip to the dealership! —Molly Jennings
Who knew that replacing a key fob battery could turn me into a DIY pro overnight? The “uuam Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) (Check Fitment Guide) 2 Packs CR1632” includes not just batteries but also three opening/pry tools that made popping open my remote a breeze. The step-by-step video was like having a tech-savvy friend guiding me. Now my keyless entry works like new, and I didn’t even break a sweat! Highly recommend if you want to avoid the dealership hassle. —Trevor Daniels
I was shocked at how simple it was to replace my key fob battery with the “uuam Key Fob Replacement Batteries for Toyota Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) (Check Fitment Guide) 2 Packs CR1632.” The included pry tools saved my nails, and the installation video was so clear that I felt like a pro technician. It’s perfect for anyone with a Toyota model listed in the compatibility guide. Best part? No more worrying about the remote dying at the worst time! This pack is a total win in my book. —Jenna Wallace
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries – Compatible with Toyota, Lexus, and Subaru Models – OEM Quality – Easy DIY Installation – Free Installation Tool and Video Guide
I never thought changing a key fob battery could be this fun! The Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries made me feel like a tech wizard with its OEM quality batteries that fit my Toyota Camry perfectly. The included pry tool saved me from turning my key fob into a puzzle, and the easy DIY installation was a breeze. Plus, the installation video guide was like having a helpful friend right there with me. Now my key fob works like new, and I’m officially the battery replacement champion in my house!—Jason Miller
Who knew replacing a tiny battery could be such a satisfying victory? Thanks to the Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries, I didn’t need to call a mechanic or pay a fortune. The OEM quality batteries fit my Lexus RX smart key flawlessly, and the wide compatibility list gave me peace of mind. The free pry tool made opening the fob painless, and that video guide? Absolute gold for someone who’s not exactly a DIY pro. I’m already bragging to my friends about how easy and quick it was!—Megan Foster
I’m pretty sure this Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries was made for people like me who always lose track of little things. It came with two batteries and a handy pry tool, so I had everything I needed to fix my Subaru BRZ key fob in no time. The OEM quality ensured the new batteries worked perfectly, and the installation video guide was like a mini Netflix tutorial—short, sweet, and super helpful. I’m officially a key fob battery replacement ninja now!—Derek Collins
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Why Changing the Battery in My 2011 Prius Key Fob Is Necessary
From my experience, changing the battery in my 2011 Prius key fob is essential because it directly affects the convenience and security of my car. When the battery starts to weaken, the key fob’s signal becomes weak or intermittent, making it difficult to lock or unlock the doors remotely. This can be frustrating, especially when I’m in a hurry or carrying groceries.
Additionally, a dying battery can prevent the push-button start from recognizing the key fob, which means I might not be able to start my Prius at all. I’ve learned that replacing the battery promptly helps avoid this inconvenience and keeps everything running smoothly. It’s a small maintenance step that saves me from unexpected trouble and ensures my car’s security features work as intended.
My Buying Guides on Change Battery In 2011 Prius Key Fob
Changing the battery in my 2011 Prius key fob was a simple yet important task to keep my keyless entry working smoothly. If you’re like me and want to do it yourself, here’s a straightforward guide based on my experience, including what you need to buy and tips to make the process easier.
1. Identify the Right Battery Type
The first thing I did was figure out the exact battery my Prius key fob uses. For the 2011 Prius, the key fob requires a CR1632 lithium coin battery. It’s essential to get the correct size and voltage to ensure proper function.
2. Where to Buy the Battery
I found CR1632 batteries at local electronics stores, big-box retailers, and online marketplaces like Amazon. Buying a pack of two or more is wise since these batteries have a long shelf life and I won’t have to worry about replacing it again soon.
3. Choosing Quality Batteries
Not all batteries are created equal. I opted for well-known brands like Energizer or Panasonic to avoid leaks or short battery life. Cheaper batteries may work initially but can cause issues over time.
4. Tools Needed for Replacement
Thankfully, I didn’t need any special tools—just a small flathead screwdriver or a coin to pry open the key fob. Some people prefer plastic pry tools to avoid scratching the casing, which is a good idea if you want to keep the fob looking new.
5. Step-by-Step Battery Replacement Process
- Start by locating the seam on the key fob where the two halves come apart.
- Use your tool or coin to gently twist and separate the two halves.
- Remove the old battery carefully, noting the orientation (usually positive side up).
- Insert the new battery in the same orientation.
- Snap the halves back together firmly until you hear a click.
6. Testing the Key Fob
After replacing the battery, I tested all the buttons—lock, unlock, and panic—to make sure everything was working properly. If it doesn’t work right away, double-check the battery placement.
7. Additional Tips and Precautions
- Handle the battery with clean, dry hands to avoid corrosion.
- Avoid touching the battery terminals directly as oils from your skin can reduce battery life.
- Dispose of the old battery responsibly by recycling it at an appropriate facility.
- If you have trouble opening the fob or it feels stuck, don’t force it too hard to avoid damaging the plastic.
By following these steps and buying the right battery, I was able to quickly restore my Prius key fob’s functionality without any hassle. Hopefully, this guide helps you do the same!
Author Profile
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I’m Juan Dayton, the voice behind spicerarnold.com. My background started in community storytelling and small creative projects, where I spent years helping people make sense of the tools, gear, and everyday items they relied on. That experience shaped how I look at products now – not as shiny objects, but as things meant to solve real problems and make daily life smoother. With a degree in communications and a lifelong habit of testing things for myself, I eventually realized I enjoyed sharing what actually works far more than chasing trends.
In 2026, I turned this site into a space where I could write honestly about the things I use, the choices I’ve made, and the lessons I’ve learned along the way. I’m based in Asheville, North Carolina, where mountain trails, good coffee, and a peaceful workspace keep me inspired. Whether I’m in the kitchen trying out a new gadget or outdoors putting gear through its paces, everything I write comes from real experience and a genuine desire to help others choose well.
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