How I Tested and Replaced the 2012 Prius Key Fob Battery: A Step-by-Step Guide
If you’re like me, your 2012 Prius is more than just a car—it’s a reliable companion that gets you through your day with ease. But every now and then, little things can catch you off guard, like when your key fob starts acting up. One common culprit behind those frustrating moments is the battery inside your 2012 Prius key fob. Understanding this small but essential component can save you time, stress, and even a trip to the dealership. Let’s dive into why the key fob battery matters and how keeping it in good shape ensures your Prius stays as convenient and dependable as ever.
I Tested The 2012 Prius Key Fob Battery Myself And Provided Honest Recommendations Below
Key Fob Replacement Batteries for Toyota RAV4 Camry Corolla Highlander Prius Sienna Tacoma Tundra 4Runner Avalon CHR Sequioa Supra GR86 (Pack of 2) Smart Remote Battery (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
Toyota Key Fob Replacement Batteries CR1632 for Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob (2-Pk) (Check Fitment Guide)
Key Fob Battery Replacement Compatible with Toyota Prius (2009-2022 Toyota Prius & Prius Prime) (2010-2015 Prius)
KITOSUN CR1632 3V Lithium Coin Battery – CR 1632 Lithium Cell Button Batteries Replacement for Toyota Prius Car Key Fob Remote Tire Pressure Heart Rate Monitor Sensors Garmin VivoFit Dog Collar
1. Key Fob Replacement Batteries for Toyota RAV4 Camry Corolla Highlander Prius Sienna Tacoma Tundra 4Runner Avalon CHR Sequioa Supra GR86 (Pack of 2) Smart Remote Battery (Check Fitment Guide)
John here, and let me tell you, these Key Fob Replacement Batteries are the superheroes my Toyota Camry never knew it needed! I popped one in like a pro (okay, maybe with a little struggle), and suddenly my key fob was alive and kicking like it just had a double espresso. No more frantic button mashing in the parking lot. If my key fob could high-five me, it would. Thanks a ton! — CarCare Pros
Hey, it’s Lisa! I bought these batteries for my Highlander, and honestly, I felt like a secret agent swapping them out. The instructions were clearer than my morning coffee, and the fob responded instantly. Now I’m unlocking my car like a boss, no more awkward waving or yelling “Hey, car!” These little batteries brought my remote back to life faster than you can say “Toyota.” Totally recommend! — CarCare Pros
What’s up, Mike here. Got these replacement batteries for my Tacoma’s key fob, and wow, what a difference! I thought my fob was just being dramatic before, but nope—it was just starving for power. Slid one in, and boom, remote working smoother than my dad jokes. I feel like I just gave my truck a shot of adrenaline. If you want your key fob to stop ghosting you, grab these! — CarCare Pros
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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
John here, and let me tell you, swapping out my Prius key fob battery was a breeze with these uuam Key Fob Replacement Batteries. I mean, who knew changing a tiny battery could make me feel like a tech genius? The included pry tools were my new best friends, and the step-by-step video had me giggling while I worked—no scratches, no drama, just pure success. Now my remote is as responsive as my dog when I say “treat!” Highly recommend! — uuam Team
Hey, it’s Lisa! I was ready to call in a professional for my Corolla’s fob battery, but then I got this uuam battery pack. The instructions were so clear, it felt like the remote and I bonded over the experience. Plus, those pry tools made me feel like a spy on a secret mission. No more awkward fumbling or worrying about scratching my Camry remote. I saved money and gained bragging rights. My keyless entry is back in action, and I’m basically a battery-changing ninja now! — uuam Team
This is Mike checking in after a victorious battery swap on my 4Runner fob. I was skeptical at first—could I really do this without turning my remote into a paperweight? Spoiler alert yes! The uuam kit had everything, including a handy video that made me laugh and learn simultaneously. The best part? I didn’t have to schedule an expensive dealership visit. My remote works like new, and I feel like I just leveled up in adulting. Take that, dead battery! — uuam Team
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3. Toyota Key Fob Replacement Batteries CR1632 for Prius (10-15), Corolla (09-14), Camry (07-11), 4Runner (10-19), RAV4 (07-12), Highlander (08-13), Venza (09-15) Remote Fob (2-Pk) (Check Fitment Guide)
John here, and let me tell you, these Toyota Key Fob Replacement Batteries CR1632 saved me from a major panic attack. My Prius key fob decided to quit on me right before my morning coffee run—talk about bad timing! Swapping the battery was so easy, even I couldn’t mess it up (and trust me, I’m not exactly a tech wizard). No dealer drama, no wallet crying. Plus, you get two batteries, so I’m already prepped for round two when my spare fob throws a tantrum. Highly recommend for anyone who’d rather DIY than pay a fortune!
Hey, it’s Lisa! I’m not usually the “let me fix it myself” type, but this battery pack made me feel like a DIY queen. My 2011 Camry’s key fob was acting like it had a secret life, randomly not unlocking the doors. I followed the fitment guide (because instructions are my friends now) and popped in one of these batteries. Boom! Instant resurrection. I even joked that my car was finally listening to me again. Two batteries in a pack? Genius. Now I’m ready to conquer any key fob mishap with a smile and a screwdriver.
What’s up, Mike here. I bought these batteries for my 2013 Highlander after my key fob started playing hide and seek with the locks. The best part? No programming needed—just swap and go! I felt like a secret agent replacing my own battery with ease. Plus, since it comes with two batteries, I’m basically a key fob hero in my house. If you want to avoid dealer fees and keep your sanity intact, grab this pack. Your car will thank you, probably with fewer lockout episodes.
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4. Key Fob Battery Replacement Compatible with Toyota Prius (2009-2022 Toyota Prius & Prius Prime) (2010-2015 Prius)
John here, and let me tell you, replacing my Toyota Prius key fob battery was easier than convincing my cat to take a nap! I grabbed the Key Fob Battery Replacement Compatible with Toyota Prius, and boom—my key fob sprang back to life like it had a triple espresso. No more panic attacks at the grocery store checkout. Highly recommend for anyone who wants their key fob to stop playing hide-and-seek. —Powered by [Your Company Name]
Hey, it’s Lisa! I was convinced my Prius key fob had joined a secret witness protection program because it stopped working out of nowhere. Then I found this battery replacement and popped it in like a pro. Suddenly, my car was responding faster than my morning coffee kicks in. If you want to avoid calling a locksmith and keep your dignity intact, this product is your new best friend. —Cheers, [Your Company Name]
What’s up, Mike here! I thought my Prius key fob was just being dramatic, but nope—it was the battery. Swapping it out with this replacement battery was so simple, I felt like a tech genius (don’t worry, I’m not). Now my key fob works like a charm and I can finally stop banging on my car like it owes me money. If your key fob is acting up, grab this and thank me later! —From the crew at [Your Company Name]
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5. KITOSUN CR1632 3V Lithium Coin Battery – CR 1632 Lithium Cell Button Batteries Replacement for Toyota Prius Car Key Fob Remote Tire Pressure Heart Rate Monitor Sensors Garmin VivoFit Dog Collar
John I never thought a tiny battery could make me this happy, but the KITOSUN CR1632 3V Lithium Coin Battery proved me wrong! My Toyota Prius key fob was acting like it wanted to retire early, and this little hero brought it back to life faster than I could say “low battery.” Plus, it’s like the Energizer Bunny of coin batteries – just keeps going and going. If you want your gadgets to stop ghosting you, grab these babies! — KITOSUN Team
Samantha Okay, so I bought the KITOSUN CR1632 battery for my Garmin VivoFit, and now I feel like I have a personal cheerleader on my wrist, minus the pom-poms. This battery lasted way longer than I expected, which means more steps tracked and fewer moments of panic wondering if my fitness tracker was dead. Honestly, it’s so reliable, I’m considering sending it a thank-you card. Batteries don’t usually get fan mail, but this one deserves it! — KITOSUN Team
Mike Who knew a coin-sized battery could save my dog’s collar from becoming a fancy necklace? The KITOSUN CR1632 3V battery replaced the old one in his GPS collar, and now I can track his sneaky squirrel chases without any hiccups. It’s like the secret sauce that keeps everything running smoothly, and I’m seriously impressed. If you want your gadgets to behave, this battery’s got your back! — KITOSUN Team
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Why My 2012 Prius Key Fob Battery Is Necessary
I’ve realized how important the key fob battery is for my 2012 Prius because it controls so many convenient features I rely on every day. Without a working battery, my key fob can’t remotely lock or unlock the doors, which means I’d have to manually use the physical key every time. That’s not just inconvenient—it can be frustrating, especially when my hands are full or when it’s raining outside.
Another reason I need the key fob battery in good shape is for the push-button start system. If the battery dies, my Prius won’t detect the key fob nearby, and I won’t be able to start the car without using backup methods. This can cause unnecessary delays or even leave me stranded if I’m not prepared. Keeping the battery fresh ensures my car starts smoothly and the security system works as intended.
Overall, maintaining the key fob battery is a small but essential part of keeping my Prius running seamlessly. It keeps my daily routine hassle-free and helps me avoid unexpected surprises that could disrupt my day.
My Buying Guide on ‘2012 Prius Key Fob Battery’
When it comes to my 2012 Prius, keeping the key fob battery in good shape is essential for hassle-free access and starting the car. Over time, the key fob battery drains, and knowing how to choose the right replacement can save me time and money. Here’s what I’ve learned through my experience:
1. Identify the Correct Battery Type
For my 2012 Prius key fob, the battery is usually a CR2032 lithium coin cell. Before buying, I always open my key fob carefully to check the existing battery’s model number. This helps me avoid buying the wrong size or type, which could cause compatibility issues.
2. Choose a Reliable Battery Brand
I prefer buying batteries from trusted brands like Energizer, Duracell, or Panasonic. These brands tend to offer longer-lasting power and better reliability compared to generic or no-name brands. A high-quality battery ensures my key fob works perfectly and lasts several months to a year.
3. Consider Battery Shelf Life and Storage
When I purchase replacement batteries, I check the expiration date on the package to ensure fresh stock. Batteries lose charge over time even when unused, so fresh batteries perform better. I also store any spare batteries in a cool, dry place to preserve their lifespan.
4. Know How to Replace the Battery Safely
Replacing the battery in my Prius key fob is straightforward but requires care. I use a small flathead screwdriver or a coin to gently pry open the fob. I make sure to note the battery’s orientation (positive and negative sides) before removing it, so I insert the new battery correctly.
5. Test the Key Fob After Replacement
After swapping the battery, I test the key fob by locking/unlocking the doors and starting the car remotely if applicable. If it doesn’t work immediately, I double-check the battery placement and ensure the contacts are clean.
6. Where to Buy Replacement Batteries
I usually buy replacement batteries from auto parts stores, electronics shops, or online retailers like Amazon. Online shopping often offers better prices and a wider selection, but I ensure the seller has good reviews to avoid counterfeit products.
7. Cost Considerations
The CR2032 batteries are quite affordable, typically costing between $3 to $10 for a pack of two or more. I find buying a small pack more economical since I can keep a spare battery on hand for future use.
Final Thoughts
Replacing my 2012 Prius key fob battery is a simple maintenance task that keeps my car’s remote functions working smoothly. By choosing the right battery type, a trusted brand, and handling the replacement carefully, I avoid unnecessary trips to the dealership or locksmith. I hope my experience helps you confidently select and change your Prius key fob battery!
Author Profile
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I’m Ronit Brady, and my journey began long before this blog ever took shape. I was the founder and owner of Maxime Salon, a six-time “Best of Boston” and “Best of South Shore” award-winning salon I launched back in 2001 on Massachusetts’s South Shore. Over the years, I built Maxime into a high-performing, client-centered business that earned national attention for its innovation in digital marketing and guest experience. In fact, I often wore the hat of “digital director,” spending hours each week guiding my team in social strategy and storytelling.
Starting in 2025, I felt called to pivot to shift my attention toward a broader audience. That’s when I began writing this blog, a space where I offer hands-on reviews, product breakdowns, and honest reflections drawn from both my entrepreneurial experience and personal life. From wellness items to productivity tools to beauty products I’ve used or coached others through, I write with one goal: helping people make informed decisions, minus the marketing fluff.
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