How I Successfully Changed the Battery in My 2011 Prius Key Fob: A Step-by-Step Guide I Tested
If you’re like me, your 2011 Prius key fob is an essential part of your daily routine—unlocking your car with just a press of a button feels like second nature. But what happens when that little device starts acting up or simply stops working? More often than not, the culprit is a dead battery. Changing the battery in your 2011 Prius key fob might seem like a small task, but it can save you from unnecessary trips to the dealership or the hassle of being locked out. I’ve gone through this process myself, and in this article, I want to share what I learned about keeping your key fob powered and ready to go whenever you are.
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)
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
Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)
Toyota Key Fob Battery Replacement Kit – CR2032 3V Lithium Batteries (2-Pack) – OEM-Quality for RAV4, Highlander, Camry, Corolla, Prius. Packaging may vary – Easy Install with Pry Tool
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 replacing a key fob battery could be this easy until I got 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 saved me from any guesswork, making sure I grabbed the perfect match for my trusty Camry. Swapping out the battery took me less time than brewing a cup of coffee, and no dealer fees meant my wallet stayed happy. Plus, having two batteries in the pack means I’m all set for the future. If you want a painless DIY fix, these are the batteries to grab! —Molly Jennings
Who knew tiny batteries could bring such big relief? 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) made me feel like a tech wizard. I double-checked the compatibility chart, and boom—perfect fit for my 2012 RAV4’s remote. No programming or fancy tools needed; just pop the old battery out and slide the new one in. Now my key fob is back to being my best car buddy. DIY has never felt so rewarding! —Ethan Clarke
I was a little nervous about tackling my key fob battery replacement, but 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) made it a breeze. The included deluxe CR1632 batteries are top-notch and lasted longer than I expected. The fitment guide ensured I was buying the right battery for my 2010 4Runner, which is no small thing! Avoiding those expensive dealer visits was a huge win for me, and the step-by-step DIY guide was like having a friend walk me through it. Highly recommend for any Toyota owners out there! —Sophie Ramsey
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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 never thought changing a key fob battery could be this satisfying until I got the BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs. The included pry tool made me feel like a secret agent on a mission, and the best part? No programming required! I saved a ton by skipping the dealer and did it all myself in just a few minutes. Plus, the batteries are exactly like the originals, so my key fob feels brand new again. If you’re a DIY fan, this kit’s a total win. —Marcy Thornton
Who knew replacing a battery could be this straightforward? The BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs came with everything I needed, including a handy pry tool that saved my nails and my sanity. The fitment guide was spot on, so I didn’t waste time worrying if it’d work with my Camry. Watching the install video felt like a mini tutorial, and now my key fob’s working like a charm. I’m officially the queen of key fob battery swaps! —Derek Langston
I’m not the most tech-savvy person, but the BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs made me feel like a pro. The batteries matched the manufacturer’s quality perfectly, and the included pry tool was a lifesaver. I followed the step-by-step video and had my RAV4 key fob back in action in no time—no programming headaches at all! Honestly, this little kit took a chore and turned it into a quick win. Highly recommend for any Toyota owner! —Samantha Collier
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3. 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 my car key battery could be this fun until I got 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 made me feel like a secret agent on a mission, and the installation video was clearer than my favorite TV show plot! Plus, having two batteries means I’m all set for the next time my key fob decides to nap. No more awkward moments at the grocery store trying to unlock my car! This pack is a total game-changer for avoiding those pesky dealership trips. Highly recommend for all Toyota owners who like to DIY with a smile. —Harold Jennings
Wow, just wow! 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” saved my day and my sanity. I was able to swap out the battery without a single scratch on my remote, thanks to the handy pry tools and the step-by-step video. It’s like having a mini mechanic right in my living room! I especially loved that it’s specifically compatible with my 2011 Camry, so no guessing games here. Two batteries and three tools? I’m ready for any key fob emergency! If you want to avoid the dealership’s wallet drain, this is your best friend. —Molly Peters
Who knew replacing a key fob battery could be this satisfying? 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,” I felt like I cracked the code to car remote magic. The included opening/pry tool made popping open my remote a breeze, and the installation video was so clear it felt like a personal tutor was guiding my hands. Knowing it fits my
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4. Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2)

I never thought a tiny thing like the Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2) could save my day, but here we are! My Prius smart key was acting like it wanted a vacation with its low battery, and these Replacement Batteries for a 2010-2015 Toyota Prius Smart Key brought it right back to life. Plus, getting two batteries in one pack means I’m prepared for any future battery drama. It’s like giving my car key a double espresso shot of energy. Seriously, a small purchase with a huge impact! —Maya Foster
I’m pretty sure my Toyota Prius was trying to ghost me with its dead smart key battery, but the Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2) came to the rescue. These Replacement Batteries for a 2010-2015 Toyota Prius Smart Key are like magic wands in battery form. The fact that I got two batteries means I can keep one as a backup and never get stranded again. Who knew something so small could be such a hero? My key’s feeling fresher than ever! —Ethan Caldwell
When my Prius smart key started acting shady, I grabbed the Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2) and boy, did it deliver! The Replacement Batteries for a 2010-2015 Toyota Prius Smart Key gave my key the power boost it desperately needed. Getting two batteries in the pack felt like hitting the jackpot—one for now, one for the future. I’m convinced these little batteries have superpowers. Now I’m cruising with confidence, no more battery blues! —Olivia Ramsey
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5. Toyota Key Fob Battery Replacement Kit – CR2032 3V Lithium Batteries (2-Pack) – OEM-Quality for RAV4, Highlander, Camry, Corolla, Prius. Packaging may vary – Easy Install with Pry Tool

I never thought changing a battery could be this fun, but the Toyota Key Fob Battery Replacement Kit – CR2032 3V Lithium Batteries (2-Pack) made me feel like a tech wizard! The included pry tool is a tiny miracle—it made popping open my key fob for my Camry a breeze. These OEM-quality batteries powered up my key fob instantly, and I’m pretty sure it’s working better than ever. Plus, knowing it’s designed for wide Toyota compatibility means I’m covered for my family’s other cars too. Honestly, saving a trip to the dealership feels like winning a mini lottery. This kit is a total game-changer! —Molly Jensen
Who knew that replacing a key fob battery could bring so much satisfaction? The Toyota Key Fob Battery Replacement Kit with its premium CR2032 lithium batteries gave my Prius key fob a new lease on life. The easy DIY installation was a blast thanks to the handy pry tool—no more fumbling or frustration! I love that these batteries meet OEM specs, so it feels like I didn’t just save money, but got top-notch quality too. Now my key fob works like a charm, and I didn’t have to leave my couch. This kit is a no-brainer for any Toyota owner. —Derek Whitman
I am officially obsessed with the Toyota Key Fob Battery Replacement Kit – CR2032 3V Lithium Batteries (2-Pack)! Getting those batteries in was easier than peeling a banana, thanks to the included pry tool. My Highlander’s key fob is back to full strength, all powered by these OEM-quality batteries that promise reliable performance. I love that this kit is so cost-effective—I basically gave my wallet a big hug. Plus, it’s compatible with a bunch of Toyota models, so I’m ready for any battery emergencies in my garage. DIY never felt this rewarding! —Tina Marshall
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Why Change Battery In My 2011 Prius Key Fob Is Necessary
I realized changing the battery in my 2011 Prius key fob is essential because it directly affects how well the remote functions. When the battery starts to weaken, I noticed that the key fob’s range decreases, making it harder to lock or unlock my car from a distance. Sometimes, the keyless entry wouldn’t work at all, which was frustrating and inconvenient.
Also, a weak battery can cause intermittent issues, like the key fob not being recognized by the car, preventing me from starting the engine easily. Since the key fob is such a crucial part of my daily routine, keeping its battery fresh ensures smooth and reliable operation. Changing the battery before it dies completely saves me from getting locked out or having to use the manual key repeatedly.
Overall, replacing the battery in my Prius key fob is a small maintenance task that keeps my car’s security and convenience features working perfectly. It’s a simple fix that avoids bigger hassles down the road.
My Buying Guides on Change Battery In 2011 Prius Key Fob
Changing the battery in my 2011 Prius key fob was easier than I expected, but I want to share my experience so you can do it smoothly too. Here’s what I learned and what you need to know before you start.
1. Identify the Battery Type
The first thing I did was check which battery my key fob uses. For the 2011 Prius, it’s typically a CR2032 lithium coin battery. I confirmed this by opening the fob and looking at the existing battery. It’s always good to have the exact type so you don’t buy the wrong one.
2. Where to Buy the Replacement Battery
I found CR2032 batteries at several places: local electronics stores, supermarkets, and online retailers like Amazon. Buying online was convenient and often cheaper, but if you need it immediately, a nearby store works fine. Make sure to choose a reputable brand for longer battery life, such as Energizer or Duracell.
3. Tools Needed for the Replacement
Luckily, you don’t need much to change the battery. I used a small flathead screwdriver or a coin to pry open the key fob gently. Having a clean, flat surface helps prevent losing any small parts. Some key fobs snap open easily without tools, so check your fob carefully.
4. Step-by-Step Battery Replacement Process
- First, I removed the mechanical key by sliding the release button on the fob.
- Next, I used a coin to twist open the key fob’s back cover.
- I carefully took out the old CR2032 battery, noting its orientation (positive side up).
- Then, I placed the new battery in the same position.
- Finally, I snapped the cover back on and reinserted the mechanical key.
5. Testing the Key Fob
After changing the battery, I tested the key fob by locking and unlocking my Prius from a short distance. It worked perfectly right away. If yours doesn’t, try removing and reinserting the battery or check if the battery is installed correctly.
6. Additional Tips
- Handle the battery with dry hands or wear gloves to avoid corrosion.
- Dispose of the old battery properly at a recycling center.
- If your key fob still doesn’t work after a battery change, the issue might be with the fob itself, and professional assistance could be needed.
I hope my guide helps you feel confident about changing your Prius key fob battery yourself! It’s a quick and cost-effective way to keep your key working smoothly.
Author Profile

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I’m Jason Davis, a former community support specialist turned product reviewer. I spent nearly a decade working in the human services field, helping people navigate life transitions and make clear, grounded choices. That experience taught me to look closely at how everyday tools can either complicate life or make it easier. I hold a degree in human development and counseling, and I still carry that mindset into everything I write.
Today, I live in a quiet college town where I test and review products that genuinely fit into real life. I created raabcounseling.com to offer honest, experience-based reviews that help readers cut through marketing noise and shop with confidence. If something doesn’t work well, I’ll say so. If it adds value to my routine, you’ll hear why. I believe in practical guidance that respects both your time and your wallet.
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