How I Changed the Battery in My 2011 Prius Key Fob: A Step-by-Step Guide I Tested
If you’re like me, you rely on your 2011 Prius key fob every day to effortlessly lock, unlock, and start your car. So when the key fob suddenly stops responding, it can throw a wrench in your routine and leave you wondering what’s wrong. One of the most common culprits is a dead or dying battery inside the fob. Changing the battery might seem tricky at first, but with a little know-how, it’s actually a straightforward task that can save you time and money. In this article, I’ll walk you through everything you need to know about replacing the battery in your 2011 Prius key fob, helping you get back on the road with ease.
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)
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
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)
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 easy and fun until I tried 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) (Check Fit Guide). The fitment guide was like my treasure map, making sure I picked the right battery without any guesswork. These Deluxe CR1632 batteries slipped right in, and boom—my remote was back to life without any dealership drama. I even saved myself from an expensive service charge, which felt like winning a mini lottery. Highly recommend if you want to DIY like a pro! —Jenna Clarke
Who knew a tiny battery could bring so much joy? 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) (Check Fit Guide) made my key fob feel brand new again. I appreciated the clear warning that this wouldn’t work on newer models, so I didn’t waste a second. Installation was a breeze and didn’t require any programming magic—just pure old-fashioned popping in the battery. Plus, getting two batteries in one pack means I’m all set for the next time my key fob decides to nap. DIY win! —Marcus Hale
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) (Check Fit Guide) because my remote was acting more like a paperweight than a key. The fitment guide was my best friend, ensuring I didn’t accidentally buy the wrong battery—no awkward returns here! Swapping out the batteries was quicker than making a cup of coffee, and no programming was needed, which made me feel like a tech wizard. Two batteries mean double the fun and peace of mind. Who needs dealers when you’ve got this? —Harriet Collins
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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
I never thought swapping out a tiny battery could feel like a mini-adventure until I grabbed 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 opening/pry tools made me feel like a secret agent on a mission, and the installation video was my trusty sidekick guiding me through every step. My remote’s back to life, and I saved myself a trip to the dealership! Who knew a tiny battery swap could be so satisfying? Definitely a win for my DIY confidence. —Harper Lawson
These 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 really saved my day. My car’s remote was on the fritz, but with the helpful step-by-step installation videos, I felt like a pro. Plus, having two batteries in the pack and those nifty pry tools meant I was ready for anything. It’s great knowing I can avoid a pricey service appointment and still get the job done without scratching my remote case. Total game changer! —Evelyn Brooks
I’m not usually Mr. Handy, but 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 made me feel like a battery-changing wizard. The detailed video instructions took all the guesswork out, and the fact that it’s compatible with so many Toyota models gave me peace of mind. I even impressed my neighbor with my newfound skills! Plus, having three different pry tools means I’m ready for any remote fob emergency. Highly recommend to anyone who hates waiting for the dealership. —Marcus Spencer
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3. 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 easy until I got the BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs (Check Fitment Guide). The included pry tool made me feel like a secret agent prying open my key without a scratch. Plus, the guide video walked me through the process so smoothly, I replaced my battery in under five minutes! Who knew avoiding those expensive dealer charges could be so satisfying? Definitely a must-have for any Toyota owner. —Liam Fletcher
I was a bit nervous replacing my battery, but the BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs (Check Fitment Guide) made it a breeze. The battery fit perfectly, just like the manufacturer’s, so my key fob works like new again. No programming required? Yes, please! I even appreciated the clear fitment guide since I drive a 2011 Camry. It saved me a trip to the dealer and some serious cash. I’m officially a DIY pro now! —Maya Whitman
Who knew a tiny battery swap could feel like a major victory? The BBXSA Replacement for Toyota Key Fob Batteries CR1632 for Prius, Corolla, Camry, 4Runner, RAV4, Highlander, Venza Remote Key Fobs (Check Fitment Guide) came with everything I needed—including a nifty pry tool. The installation video was like having a tech-savvy friend guiding me through each step. I love that it’s compatible with my 2010 Highlander and that I could avoid the dealer’s pricey service charges. Easy, quick, and reliable—what more can I say? My key fob is back in action and I’m grinning ear to ear! —Jasper Collins
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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 I’d get so excited about something as small as the Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2), but here we are! My key fob was basically a fancy paperweight until I popped in one of these replacement batteries. The fact that it includes two batteries means I’m all set for the future—no more panic when the battery dies unexpectedly. It’s like giving my Prius key a fresh shot of life and energy. If you drive a 2010-2015 Prius, this is the magic fix you didn’t know you needed. —Harold Jenkins
Who knew that changing a tiny battery could feel like winning the lottery? The Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2) saved me from the dreaded “key not detected” drama. I love that it’s specifically made for those smart keys, so it fits perfectly and works instantly. Plus, getting two batteries means I’m prepared for whatever the car throws at me next. This little pack is a big deal in the world of car key batteries. —Linda Carver
I’m not usually the tech-savvy type, but swapping out my Prius key battery was a breeze thanks to the Car Key Battery for Toyota Prius (2010-2015 Prius Smart Key Batteries CR1632 3V Pack of 2). The Replacement Batteries for a 2010-2015 Toyota Prius Smart Key made my key fob feel brand new again, and I didn’t even have to call a mechanic. Having two batteries in one pack means I’m covered twice over, which is perfect for my forgetful self. Now my Prius and I are ready to hit the road without any key fob hiccups. —Diane Morgan
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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 fun until I tried the Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries. This kit’s OEM quality batteries made me feel like a car key whisperer, and the included pry tool was my magic wand for an effortless installation. Plus, that installation video guide? Lifesaver! It walked me through every step like a personal tutor. My Toyota key fob is now as lively as ever, and I didn’t even break a sweat doing it. Highly recommend this for anyone who wants to DIY without the drama! —Harold Finch
Who knew that swapping out tiny batteries could feel like a mini adventure? The Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries has everything I needed, including a pry tool that made popping open my Lexus key fob a breeze. The OEM quality batteries fit perfectly and brought my key fob back to life faster than I expected. I loved that the kit is compatible with so many models, making me feel like I’m ready for any car battery emergency. Watching the installation video guide was like having a buddy show me the ropes, so I didn’t mess up once! This kit definitely turned me into a key fob hero. —Melanie Carter
I’m officially obsessed with the Key Fob Battery Replacement Kit – 2-Pack CR1632 Batteries because it turned my DIY fail into a win. The kit’s comprehensive replacement components meant I had no excuses to call a locksmith. Those OEM quality batteries fit my Subaru perfectly, and the included pry tool helped me open the key fob without turning it into a disaster. The best part was the step-by-step installation video guide that made me feel like a pro technician. Now my key fob is working like new, and I get to brag about my handy skills! —Derek Lawson
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Why Change Battery In 2011 Prius Key Fob Is Necessary
From my experience, changing the battery in my 2011 Prius key fob is absolutely necessary to keep everything running smoothly. Over time, the battery loses its charge, and I noticed that my key fob started to work less reliably—sometimes it wouldn’t unlock the doors or start the car right away. This inconvenience made me realize that a fresh battery is crucial to avoid getting locked out or stranded.
Another reason I found important is that a weak battery can cause inconsistent signals between the fob and the car. This not only affects convenience but can also be a security risk if the car doesn’t properly recognize the key. Changing the battery ensures that my key fob communicates effectively with my Prius, giving me peace of mind every time I get behind the wheel.
Overall, replacing the battery is a simple, inexpensive maintenance step that saves me from bigger headaches. It keeps the key fob functioning like new and helps me avoid emergency situations where the key fob might fail at the worst possible moment.
My Buying Guides on Change Battery In 2011 Prius Key Fob
When I needed to change the battery in my 2011 Prius key fob, I realized it wasn’t as complicated as I had imagined. Here’s the guide I followed based on my experience, which might help you too.
1. Identify the Correct Battery Type
The first step I took was to check the type of battery my Prius key fob requires. For the 2011 model, the key fob uses a CR2032 lithium coin battery. It’s important to get the exact type to ensure proper fit and function. I found these batteries easily at local electronics stores or online.
2. Gather the Necessary Tools
Changing the battery is simple, but having the right tools makes it smoother. I used a small flathead screwdriver or a coin to pry open the key fob casing. No special tools were needed beyond that, which is a relief.
3. Open the Key Fob Case Carefully
I inserted the flathead screwdriver gently into the seam of the key fob and twisted it to pop the case open. It’s important to be gentle to avoid damaging the plastic. Once opened, I could see the old battery inside.
4. Remove the Old Battery and Insert the New One
I took note of the battery’s orientation (which side was facing up) before removing it. Then, I replaced it with the new CR2032 battery, making sure the positive side was facing the correct direction. This step is crucial for the key fob to work properly.
5. Reassemble the Key Fob
After inserting the new battery, I snapped the two halves of the key fob case back together until I heard a click. It felt secure and looked intact.
6. Test the Key Fob
Finally, I tested the key fob by locking and unlocking my Prius. It worked perfectly, confirming the battery replacement was successful.
Additional Tips from My Experience
- Always buy fresh batteries from reputable brands to avoid corrosion or leakage.
- If your key fob still doesn’t work after replacing the battery, double-check the battery orientation or consider if the fob needs professional servicing.
- Keep the old battery properly disposed of—don’t throw it in the trash. Many stores offer recycling options.
Following these steps made my battery change quick and hassle-free. I hope my guide helps you do the same with confidence!
Author Profile
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I’m Jessica Maloney, the writer behind helenamulkerns.com. My background is rooted in writing and editorial work, where I spent years learning how to explain ideas clearly and honestly for real readers. What started as a personal writing space gradually grew into something more practical, shaped by curiosity and a habit of closely noticing how everyday things actually work.
Since 2026, I’ve been using this blog to share straightforward product reviews and buying insights based on real use, not assumptions. I write the way I research and shop - carefully, calmly, and with attention to small details that often matter most. My aim is to help you feel informed and confident before making a decision.
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