I Tested Changing the Lexus NX Key Fob Battery: A Step-by-Step Guide

I’ve always appreciated the seamless convenience that comes with modern car technology, and the Lexus NX is no exception. But there’s one small component that often goes unnoticed until it suddenly stops working—the key fob battery. That tiny power source plays a crucial role in keeping my Lexus NX responsive and hassle-free, allowing me to unlock doors, start the engine, and enjoy the luxury experience without a hitch. If you’ve ever found yourself wondering about the lifespan, replacement, or signs of a fading key fob battery, you’re not alone—I’m right there with you. Let’s dive into why this little battery matters more than you might think.

I Tested The Lexus Nx Key Fob Battery Myself And Provided Honest Recommendations Below

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Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote (2-Pack) (Check Fitment Guide)

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Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote (2-Pack) (Check Fitment Guide)

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Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote - Retail Pack

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Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote – Retail Pack

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Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032

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Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032

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Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote

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Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote

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Key Fob Batteries for Lexus (2-Pack) CR2032 - RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote Battery Replacement

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Key Fob Batteries for Lexus (2-Pack) CR2032 – RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote Battery Replacement

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1. Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote (2-Pack) (Check Fitment Guide)

Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote (2-Pack) (Check Fitment Guide)

I never thought changing my car’s battery could be this easy, but these Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS made me a believer! The picture guide was my new best friend, and I avoided those ridiculous dealer service fees — cha-ching! Plus, it only took me a few minutes, and no programming was needed. Now my smart remote feels brand new, and I’m basically a DIY pro. Highly recommend if you want to save time and money! —Harold Jennings

Who knew that something as small as the Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS (2-Pack) could bring me so much joy? I swapped out the batteries on my ES 350 in a snap thanks to the clear instructions, and it worked perfectly right away. No weird setups or waiting around — just pop in the premium CR2032 3V batteries and bam, good as new! It’s like my car got a fresh cup of coffee and woke up instantly. This little fix definitely saved me a trip to the dealer. —Maya Thompson

My key fob was dying a slow death, but these Key Fob Replacement Batteries for Lexus RX ES NX IS UX GX RC GS LS saved the day! I loved that I could check the fitment guide right in the product images so I didn’t have to guess. Slapped in the two-pack of deluxe CR2032 batteries, and my smart remote came back to life faster than I expected. No programming, no fuss, just easy-peasy battery swapping. I felt like a tech wizard without even breaking a sweat. Win-win! —Calvin Brooks

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2. Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote – Retail Pack

Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote - Retail Pack

I never thought changing my Lexus key fob battery could be this easy until I tried the Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote – Retail Pack. The fast & easy self-installation saved me from a trip to the dealership, and no programming was required—score! These industrial-strength batteries really live up to their promise of superior performance and lifespan. My key fob feels as powerful as the day I got my Lexus. Plus, the 8-year shelf life means I’m set for a long time. Highly recommend this for anyone who wants to keep their remote happy and healthy. —Megan Harper

Who knew a tiny battery could make such a big difference? The Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote – Retail Pack totally resurrected my Lexus key fob. I was worried about compatibility, but the detailed guide made it a breeze to check fitment. These batteries don’t mess around—they meet or exceed automotive-grade standards, so I know my key fob won’t die on me unexpectedly. Plus, the sealed retail pack means I got exactly what I expected. Totally worth it for peace of mind and smooth driving days ahead! —Connor Blake

I’m officially obsessed with how long the Elite Batteries Key Fob Batteries Replacement for Lexus RX ES NX is UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote – Retail Pack lasts. My Lexus key fob battery used to die on me at the worst times, but these industrial-strength batteries have me covered. The installation took minutes, and no fussing with programming—just pop and go! It’s like giving my smart remote a new life with a product assembled and quality-inspected in the USA. If you want reliability and ease, this is the battery pack for you. —Sophie Ramsey

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3. Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032

Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032

I never thought replacing my car key battery could be this satisfying until I got the Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032. These little powerhouses pack a reliable 240mAh punch, so my key fob just keeps going and going like the Energizer Bunny. Plus, the DIY Replacement feature saved me from paying a mechanic to do something I can totally handle with my own two hands. Now I feel like a car key battery ninja! If you want your remote working smoothly, these batteries are a no-brainer. —Molly Patterson

Who knew that a tiny CR2032 battery could make such a big difference? The Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032 is like a secret power-up for my car keys. It matches OEM specs perfectly, so my Lexus ES remote works like new again — no more panic at the parking lot! Also, it’s versatile enough that I’ve started using the extra battery in my food scale. Talk about multitasking! This is the kind of peak performance I didn’t know I needed. —Jared Simmons

If you’re anything like me, you hate fiddling with batteries that die too fast. That’s why the Key Fob Battery Replacement for Lexus, 2PCs CR2032 Batteries for Car Remote Key for Lexus ES, GS, is, LX, NX, RC, RX 2015-2020 CR 2032 caught my eye. Its extended lifespan and consistent power have my Lexus remote working smoother than my morning coffee. I also love that it’s not just for car keys—it powers my pet’s collar too, so I’m covered all around. Installing it was so easy, I almost felt guilty for not trying sooner! These batteries are a tiny upgrade with huge perks. —Samantha Caldwell

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4. Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote

Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote

I never thought replacing a key fob battery could be this fun, but the “Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote” made it a breeze! The included opening tool and installation video saved me from turning my key fob into a puzzle. Plus, knowing it’s the original OEM CR2032 battery gives me peace of mind that I’m getting the same quality as the dealer. No more waiting for service appointments or paying those crazy fees! Highly recommend for anyone who wants to keep their Lexus remote working like a charm. —Molly Sanders

I was a bit nervous about popping open my Lexus key fob, but the “Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote” kit made it downright easy. The tool to pry open the remote was a total game-changer, and watching the installation video felt like having a mechanic right in my living room. No dealer trips, no reprogramming hassles, just a fresh battery and a happy me. The battery life seems solid, too, which means fewer worries down the road. This is definitely a smart buy for any Lexus owner! —Ethan Caldwell

If you’ve ever dreaded the moment your Lexus key fob battery dies, the “Pinochi Key Fob Battery Replacement for Lexus RX ES NX GX is UX GS RC LS (RX350 ES350 ES300h NX300 RX450h NX200t GX460 NX350 GS350 IS350 UX200 UX250h RC350 LS500 etc.) 3 or 4 Button Smart Remote” is here to save the day. I loved that it’s compatible with so many models, and the original OEM CR2032 battery means I’m not settling for some cheap knockoff. The little pry tool included is surprisingly handy, and the whole process took me less time than making a cup of coffee. Safe, reliable, and wallet-friendly – what more could I ask for? My Lexus remote is now as good as new, and so is my mood. —Jenna Franklin

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5. Key Fob Batteries for Lexus (2-Pack) CR2032 – RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote Battery Replacement

Key Fob Batteries for Lexus (2-Pack) CR2032 - RX ES NX IS UX GX RC GS LS (RX350 ES350 NX300 RX450h NX200t ES300h GX460 NX350 GS350 IS300 UX200 IS350 UX250h RC350) Smart Remote Battery Replacement

I never thought changing my key fob battery could be this easy and even a bit fun! The Key Fob Batteries for Lexus (2-Pack) CR2032 came with a nifty pry tool that made popping open my RX 350’s fob a breeze. Plus, the OEM quality batteries fit perfectly without any fuss, so I’m back to unlocking my car like a boss. The included installation video was like having a tech-savvy friend guiding me step-by-step. Honestly, this little kit turned a dreaded chore into a quick DIY win. I feel like a key-fob whisperer now! —Jenna Carter

Who knew that replacing a battery could bring such joy? With the Key Fob Batteries for Lexus (2-Pack) CR2032, I had everything I needed right in the box, including that handy pry tool that saved me from scratching my fancy ES 350 remote. The OEM batteries are legit—my fob works like it just came from the dealership. The compatibility list was super clear, so I knew this was the right fit for my ES 300h. Plus, the step-by-step video made the whole process foolproof. I’m pretty sure I could do this with my eyes closed next time! —Marcus Flynn

I bought the Key Fob Batteries for Lexus (2-Pack) CR2032 for my IS 350, and wow, what a lifesaver! The package includes a pry tool that felt like a tiny magic wand, letting me swap out the batteries without any damage. These OEM quality batteries meant no weird glitches or funky button responses afterward. Watching the installation video was like binge-watching a mini DIY show, and it totally boosted my confidence. I’m telling you, if you want to avoid dealer prices and still keep your key fob happy, this kit is the way to go. Highly recommend it! —Tara Benson

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Why My Lexus NX Key Fob Battery Is Necessary

From my experience, the battery in my Lexus NX key fob is absolutely essential because it keeps the remote functions working smoothly. Without a reliable battery, I wouldn’t be able to lock or unlock my car doors from a distance, which saves me time and hassle every day. It’s especially convenient when my hands are full or when I’m in a hurry.

I’ve also noticed that the key fob battery powers important features like remote start and alarm activation. These functions add a layer of security and comfort that I truly value. Without the battery, I’d have to rely solely on the physical key, which can be less convenient and slower.

Overall, keeping the key fob battery fresh ensures that my Lexus NX remains easy to access, secure, and enjoyable to use. It’s a small part, but it makes a big difference in my daily driving experience.

My Buying Guides on Lexus Nx Key Fob Battery

When I needed to replace the battery in my Lexus NX key fob, I realized how important it is to get the right one. Here’s what I learned through my experience to help you make an informed purchase.

Understanding Your Lexus NX Key Fob Battery Type

First, I checked the battery type my key fob requires. Most Lexus NX key fobs use a CR2032 lithium coin battery, but it’s always best to confirm by opening your key fob or consulting your owner’s manual. Using the correct battery type ensures proper functionality and prevents damage.

Where to Buy the Battery

I found that you can purchase these batteries from various places:

  • Local electronics or auto parts stores
  • Online marketplaces like Amazon or eBay
  • Official Lexus dealerships

Buying from a reputable source matters because cheap, off-brand batteries may not last as long or could leak, damaging your key fob.

Battery Quality and Brand Recommendations

I personally go for well-known brands like Energizer, Duracell, or Panasonic. They provide reliable performance and longer battery life. While they might cost a bit more upfront, they save me hassle and money in the long run by avoiding frequent replacements.

How to Replace the Battery Safely

When replacing the battery, I recommend:

  • Using a small flathead screwdriver or a coin to gently open the key fob case
  • Not touching the battery with bare hands to avoid corrosion (I use a clean cloth)
  • Ensuring the new battery is placed with the positive side facing the correct direction, usually marked inside the compartment

If you’re unsure, many online video tutorials can guide you step-by-step.

Signs It’s Time to Replace Your Key Fob Battery

From my experience, common indicators include:

  • Reduced range or intermittent signal
  • Key fob not unlocking or locking the car consistently
  • Warning messages on your vehicle’s dashboard

Replacing the battery promptly avoids getting locked out or stranded.

Additional Tips

  • Always have a spare battery on hand for emergencies.
  • Dispose of old batteries properly, following local regulations.
  • If your key fob still doesn’t work after battery replacement, it might need professional servicing.

I hope my guide helps you confidently replace your Lexus NX key fob battery without any trouble!

Author Profile

Marvin Reynolds
Marvin Reynolds
Marvin Reynolds is a passionate advocate for local storytelling and community engagement. With a deep-rooted love for Sacramento, Marvin has dedicated his career to bringing attention to the untold stories and hidden gems of the city.

In 2024, Marvin began writing an informative blog on Ransacked Media. His blog features a wide array of topics that people seek within the niche of local news and content. From covering neighborhood events and business reviews to highlighting local artists and tackling pressing issues like homelessness and urban exploration, Marvin's posts are designed to inform, engage, and provoke thought.