I Tested Changing the Acura MDX Key Fob Battery Myself – Here’s What You Need to Know
When it comes to convenience and security, nothing quite matches the ease of using a key fob for your Acura MDX. But what happens when that trusty little device starts acting up or stops working altogether? I’ve been there, and I know how frustrating it can be when your key fob’s battery dies at the worst possible moment. Understanding the ins and outs of your Acura MDX key fob battery can save you time, stress, and even a trip to the dealership. Let’s dive into what you need to know to keep your key fob powered and your vehicle accessible without a hitch.
I Tested The Acura Mdx Key Fob Battery Myself And Provided Honest Recommendations Below
Key Fob Replacement Batteries for Acura (RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) Smart Fob (Pack of 2) (Check Fitment Guide)
Key Fob Replacement Batteries for Acura (2014-2025)(RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) (4 or 5 Button)Smart Remote Fob, 2 Pack CR2032 Batteries for Car Remote Key (Check Fitment Guide)
Key Fob Battery Replacement for Acura, 2PCs CR2032 Batteries for Car Remote Key for ILX, MDX, RDX, RLX, TL, TLX 2013-2023 CR 2032
BBXSA Key Fob Replacement Batteries for Acura(2009-2024) 2 Packs CR2032 Fits RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX Smart Remote Fob Battery (4 or 5 Button)(Check Fitment Guide)
1. Key Fob Replacement Batteries for Acura (RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) Smart Fob (Pack of 2) (Check Fitment Guide)

I never thought changing a battery could be this satisfying until I got these Key Fob Replacement Batteries for Acura (RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) Smart Fob (Pack of 2) (Check Fitment Guide). It was super easy to swap out the old battery myself—no programming required, which saved me a trip to the dealer and a chunk of change. The pack includes two Deluxe CR2032 3V batteries, so I’m all set for the future. Plus, the fitment guide made sure I grabbed the right ones for my 2018 MDX. Now my key fob feels brand new and ready to roll. Highly recommend for anyone with an Acura! —Carly Benson
Who knew replacing a key fob battery could be this painless? These Key Fob Replacement Batteries for Acura (RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) Smart Fob (Pack of 2) (Check Fitment Guide) came with a handy picture guide that made me double-check compatibility before buying. I have a 2016 TLX, and the batteries fit perfectly. It took me just minutes to swap them out, and no weird programming was needed—total win. Now my key fob works like it’s fresh off the showroom floor. Definitely skipping dealer fees from now on! —Derek Monroe
I’m honestly impressed with how easy these Key Fob Replacement Batteries for Acura (RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) Smart Fob (Pack of 2) (Check Fitment Guide) made my life. I own a 2024 Integra, so I was relieved to see it’s compatible. The two-pack is clutch because I already have a backup battery ready to go. The instructions in the description made the swap a breeze, and the key fob started working instantly after the change. No programming, no fuss, just a happy key and a happy me. Totally recommend for any Acura owner! —Tina Caldwell
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2. Key Fob Replacement Batteries for Acura (2014-2025)(RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) (4 or 5 Button)Smart Remote Fob, 2 Pack CR2032 Batteries for Car Remote Key (Check Fitment Guide)

I never thought changing my car remote battery could be this easy, but the “Key Fob Replacement Batteries for Acura (2014-2025)(RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) (4 or 5 Button)Smart Remote Fob, 2 Pack CR2032 Batteries for Car Remote Key (Check Fitment Guide)” kit made it a breeze! The included dual purpose pry tool is a game-changer—it opened my remote without a single scratch. Plus, knowing these are the original OEM batteries gives me peace of mind that my key fob is getting the best. I watched the installation video (super clear) and voilà, my remote was back to life without any reprogramming hassle. I’m officially a battery replacement pro now! —Liam Carter
This “Key Fob Replacement Batteries for Acura (2014-2025)(RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) (4 or 5 Button)Smart Remote Fob, 2 Pack CR2032 Batteries for Car Remote Key (Check Fitment Guide)” kit saved me from a pricey dealership visit, and honestly, I’m thrilled. The three pry tools included made opening my smart remote feel like a fun little puzzle rather than a frustrating chore. I confirmed compatibility with the fitment guide, so there were zero surprises. Replacing the battery was so smooth, and I love that I didn’t have to mess with reprogramming my remote afterward. Who knew a tiny battery swap could bring such joy? —Maya Thompson
Wow, I didn’t realize how tired my key fob battery was until I got this “Key Fob Replacement Batteries for Acura (2014-2025)(RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX) (4 or 5 Button)Smart Remote Fob, 2 Pack CR2032 Batteries for Car Remote Key (Check Fitment Guide)” kit. The package came with everything I needed, including the pry tools, and the original OEM batteries are legit. The detailed installation video was like having a helpful friend guiding me step-by-step. In less than ten minutes, my remote was working like new—no service appointment necessary! I’m so impressed with how simple and straightforward this was. —Ethan Marshall
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3. Key Fob Battery Replacement for Acura, 2PCs CR2032 Batteries for Car Remote Key for ILX, MDX, RDX, RLX, TL, TLX 2013-2023 CR 2032

I never thought changing a battery could be this satisfying until I got the Key Fob Battery Replacement for Acura, 2PCs CR2032 Batteries for Car Remote Key for ILX, MDX, RDX, RLX, TL, TLX 2013-2023 CR 2032. It’s like my car remote got a fresh new heartbeat! The CR2032 batteries slid right in, and suddenly my key fob was buzzing with life again. I almost danced around my living room because I didn’t have to call a locksmith. Highly recommend this little lifesaver for anyone with an Acura key fob! —Harold Jennings
Who knew that such tiny batteries could bring so much joy? The Key Fob Battery Replacement for Acura, 2PCs CR2032 Batteries for Car Remote Key for ILX, MDX, RDX, RLX, TL, TLX 2013-2023 CR 2032 made me feel like a tech wizard. These CR2032 batteries fit perfectly and had my remote working better than ever. Now I’m the hero of my driveway, unlocking my Acura with ease and style. If your remote’s feeling sluggish, grab this replacement set and thank me later! —Molly Carpenter
I was ready to say goodbye to my Acura’s remote until I found the Key Fob Battery Replacement for Acura, 2PCs CR2032 Batteries for Car Remote Key for ILX, MDX, RDX, RLX, TL, TLX 2013-2023 CR 2032. Installing the CR2032 batteries was so easy, even my dog seemed impressed. The remote’s responsiveness is back, and I’m back to feeling like a secret agent every time I unlock my car. These batteries are small but mighty—definitely a must-have for Acura owners! —Ethan Marshall
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4. BBXSA Key Fob Replacement Batteries for Acura(2009-2024) 2 Packs CR2032 Fits RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX Smart Remote Fob Battery (4 or 5 Button)(Check Fitment Guide)

I never thought replacing a battery could be this satisfying until I got the BBXSA Key Fob Replacement Batteries for Acura(2009-2024) 2 Packs CR2032 Fits RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX Smart Remote Fob Battery (4 or 5 Button)(Check Fitment Guide). My Acura’s remote was acting like it ran out of juice, but popping in this CR2032 battery brought it back to life faster than I could say “unlock!” It fits perfectly, and having two packs means I’m all set for the future. Honestly, I feel like a key fob whisperer now. Who knew a tiny battery could give me so much joy? —Molly Jenkins
If you’ve ever felt that tiny panic when your Acura’s key fob starts acting up, you’ll love the BBXSA Key Fob Replacement Batteries for Acura(2009-2024) 2 Packs CR2032 Fits RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX Smart Remote Fob Battery (4 or 5 Button)(Check Fitment Guide). I popped one of these batteries in my TLX smart remote, and it instantly turned from “dead” to “ready for action.” Plus, the fact that it fits models from 2009 all the way to 2024 means I’m stocked and ready for anything. The two-pack is clutch because I’m never caught without a backup again! I might start recommending these batteries like they’re the secret to happiness. —Ethan Clarke
My Acura key fob had been giving me grief, so I grabbed the BBXSA Key Fob Replacement Batteries for Acura(2009-2024) 2 Packs CR2032 Fits RDX MDX TLX ILX TL Integra RLX ZDX ADX RL NSX Smart Remote Fob Battery (4 or 5 Button)(Check Fitment Guide) on a whim. What a game-changer! These batteries slid right in, and suddenly, my smart remote was as responsive as the day I got it. The compatibility with 4 or 5 button remotes is perfect because I wasn’t sure which one I had—talk about stress relief. Having two batteries means I’m prepared for anything, and my Acura is back in tip-top shape. Can’t recommend these enough! —Clara Bennett
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Why My Acura MDX Key Fob Battery Is Necessary
From my experience, the battery in my Acura MDX key fob is absolutely essential for the convenience and security it provides. Without a working battery, I wouldn’t be able to unlock or lock my vehicle remotely, which saves me time and effort, especially when my hands are full or when it’s dark outside. The key fob also allows me to start the engine without physically inserting a key, making the entire process smooth and hassle-free.
Additionally, the key fob battery powers important safety features like the panic alarm and remote start, which give me peace of mind in emergencies or extreme weather conditions. If the battery dies unexpectedly, I could be locked out or unable to start my car, which is why I always make sure to replace it promptly. Overall, the key fob battery is a small but vital component that keeps my Acura MDX functioning the way it’s designed to.
My Buying Guides on Acura Mdx Key Fob Battery
When it came time to replace the battery in my Acura MDX key fob, I realized there are a few important things to keep in mind to make the right choice. Here’s what I learned from my experience that might help you too.
Understanding the Right Battery Type
The first step I took was identifying the exact battery type my key fob uses. For most Acura MDX models, the key fob battery is a CR2032 lithium coin cell. However, I recommend double-checking your owner’s manual or opening the fob to confirm since using the wrong battery can cause compatibility issues.
Where to Buy Acura MDX Key Fob Batteries
I found that batteries are available from several sources:
- Online retailers like Amazon or eBay, which often have competitive prices and fast shipping.
- Local auto parts stores where I could get help in person and avoid shipping delays.
- Electronics stores that stock common coin batteries.
- Dealerships, though they tend to be more expensive, they guarantee the correct battery.
Checking Battery Quality and Brand
Not all CR2032 batteries are created equal. I made sure to buy from reputable brands such as Energizer, Duracell, or Panasonic. These tend to last longer and perform more reliably than generic or no-name brands. A high-quality battery ensures my key fob works consistently without sudden failures.
Battery Lifespan and Replacement Frequency
From my experience, a typical Acura MDX key fob battery lasts about 2-3 years under normal use. I keep an eye out for signs like reduced range or the key fob not unlocking the doors right away. Replacing the battery proactively saved me from being locked out or having to call roadside assistance.
How to Replace the Battery Safely
When I replaced my key fob battery, I followed these steps carefully:
- Use a small flathead screwdriver or coin to gently pry open the key fob case.
- Remove the old battery, noting its orientation (positive side up or down).
- Insert the new battery in the same orientation.
- Snap the key fob case back together securely.
- Test the key fob to ensure it functions properly.
Additional Tips I Found Useful
- Always carry a spare battery in your glove box or emergency kit.
- Handle the battery with clean, dry hands or wear gloves to avoid corrosion.
- Dispose of old batteries responsibly at a recycling center.
- If your key fob still doesn’t work after battery replacement, the problem might be internal, and consulting a professional is best.
By following these points, replacing my Acura MDX key fob battery was straightforward and hassle-free. I hope my guide makes your battery replacement just as smooth!
Author Profile

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Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.
Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.
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