How to Replace the Key Fob Battery 2025 Lexus UX 300h: Learn how to quickly replace the key fob battery on your 2025 Lexus UX 300h in under 60 seconds! Step-by-step instructions from Mr. Locksmith. Use a CR2032 battery to restore full remote function. Fast, easy, and no reprogramming required. Mr. Locksmith Automotive shows you how to do it fast and easy! (Source: Terry Whin-Yates)
Source: Mr. Locksmith Youtube http://www.youtube.com/user/24hrMrLocksmith
How to Replace the Key Fob Battery 2025 Lexus UX 300h
Mr. Locksmith Automotive (604) 259-7617
Mr. Locksmith Automotive | Luxury Hybrid Key Fob Repair Tips
If the key fob for your 2025 Lexus UX 300h has stopped working or the range has significantly decreased, chances are the battery is running low. Don’t worry—replacing the battery is a simple DIY job that takes just a few minutes.
At Mr. Locksmith Automotive, we specialize in servicing luxury vehicles like Lexus, and we’re here to walk you through the key fob battery replacement process.
Replacing your 2025 Lexus UX 300h key fob battery?
What You’ll Need:
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1x CR2032 lithium coin battery (quality brand recommended)
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Flathead screwdriver or a small coin
Step-by-Step: Replacing the Battery in Your Lexus UX 300h Key Fob
Step 1: Release the Mechanical Key
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Flip the key fob over.
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Press the small release button on the back to eject the emergency key blade.
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Pull the key out and set it aside.
Step 2: Open the Key Fob Case
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Look near the slot where the key blade was stored. You’ll see a small seam or groove.
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Insert a flathead screwdriver or coin into the groove.
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Gently twist to pry open the fob—you’ll hear a soft click as the case separates.
Step 3: Remove the Old Battery
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Inside, you’ll find a CR2032 coin battery.
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Use the screwdriver or your fingernail to carefully pop out the old battery.
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Pay attention to how the battery is positioned—positive (+) side usually faces up.
Step 4: Insert the New Battery
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Place the new CR2032 battery into the slot, positive side up.
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Press it down gently until it’s fully seated.
Step 5: Reassemble the Key Fob
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Align the two halves of the fob and press them together until they snap securely.
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Reinsert the metal emergency key blade.
Test Your Key Fob
Stand near your Lexus UX 300h and test all buttons—lock, unlock, and push-to-start functions should all work as expected.
Mr. Locksmith Tip:
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Always use high-quality coin batteries (Duracell, Energizer, Panasonic) to ensure long life and consistent signal strength.
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Store a spare CR2032 battery in your glove box—just in case!
Need Help? Call Mr. Locksmith Automotive
If your key fob still isn’t working after replacing the battery, it could be a deeper issue like a damaged circuit board or lost pairing. At Mr. Locksmith Automotive, we offer:
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Lexus smart key replacement & programming
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Vehicle lockout service
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Mobile car locksmith service
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Ignition repairs for hybrid & luxury vehicles
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Emergency locksmith services across Metro Vancouver
Source: Terry Whin-Yates Mr. Locksmith Linkedin
📞 Call us at 604-259-2953
📍 Serving Vancouver, Burnaby, Richmond, Surrey, Langley, and beyond.
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Mr. Locksmith Automotive (604) 259-7617
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Mr. Locksmith™
Mr. Locksmith is your trusted, professional locksmith service offering expert residential, commercial, and automotive locksmith solutions across British Columbia. Whether you’re locked out, need your locks changed or rekeyed, or require high-security lock systems like Schlage Primus, Mr. Locksmith delivers fast, reliable, and damage-free service. With mobile locksmith units fully equipped for key cutting, lock repair, and security upgrades, our certified technicians are ready to respond quickly to your needs. From emergency car lockouts in Langley to commercial master key systems in Richmond. “Mr. Locksmith has the tools, training, and experience to keep you secure.” (Source: Terry Whin-Yates)
Mr. Locksmith is a trusted locksmith company serving residential, commercial, and automotive clients throughout British Columbia. We specialize in emergency lockouts, lock change and rekeying services, high-security lock installations, key duplication, and mobile automotive locksmith services. Whether you’re locked out of your home, need car key programming, or want to upgrade to Schlage Primus or other high-security systems, Mr. Locksmith provides fast, professional, and reliable service. Available 24/7, our licensed locksmiths are fully equipped to handle all your security needs on-site.
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