A smart key is the type of key your 2015 Lexus ES uses. It contains a programmed chip that communicates with your vehicle's immobilizer system to verify it is an authorized key before the engine will start. It also has 4 buttons for remote lock, unlock, and other functions. When a key breaks, the chip inside may still be functional, but the physical damage usually means a full replacement is the safest option to avoid getting stranded again.

2015 Lexus ES
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Q: My Lexus says key not detected. What do I do?

First, try holding the fob directly against the start button and pressing. Your Lexus can power the transponder chip like an RFID tag even when the fob battery is completely dead, so this works indefinitely as long as the chip is healthy. If that gets the car started, replace the battery with a fresh name brand CR1632. If holding the fob to the button does not work, the issue may be the key itself or the vehicle's reception module. Some GX460 owners found that a software configuration setting had disabled smart key reception, and simply turning it back on fixed the problem without replacing anything.

Q: What is the FCC ID for the 2015 Lexus ES key?

The FCC ID is HYQ14FBA. This is the identifier printed on the back of your key fob that tells us exactly which key your vehicle requires. It ensures we match the correct blank, chip frequency, and remote protocol so the key programs correctly on the first attempt. If your existing key is damaged and you cannot read the FCC ID on the back, give us your VIN and we can look it up to confirm the right replacement.

Q: Is all-keys-lost more expensive than a regular replacement?

Yes. When you have at least one working key, adding a spare is a quick programming job. When every key is lost, the Lexus smart key computer needs to be fully reset and new keys programmed from scratch. An LS430 owner reported the dealer quoting $1,500 for all-keys-lost versus a few hundred for a spare key when a working key was present. Locksmiths in the same area quoted $350 to $600 for the same AKL job. The gap between add-a-key and all-keys-lost is real, which is why we always recommend getting a spare made while you still have a working key.

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2015 Lexus ES Smart key Replacement - Fast, Affordable & Professional

BSIS license LCO#6792 means I passed California's background check, carry active liability insurance, and operate a registered locksmith business. NASTF certification gives me access to factory security data for Lexus and Toyota that unlicensed operators can't touch. Google Guaranteed means Google independently verified my credentials.

A customer at the urgent care near Saticoy area told me she'd verified my license number before calling. Her last locksmith had no license at all. She discovered that when his receipt had no company name, no license number, and a phone number that went dead a week later. She needed a spare for her 2015 Lexus ES and wasn't making that mistake again.

NASTF access matters on Lexus because it provides factory security seeds and encryption data through authorized channels. When I program a key with my ACDP or other tools, I'm using legitimate data paths, not workarounds that leave fault codes in the smart ECU. Her remote, FCC ID HYQ14FBA, was programmed through the correct channel with no residual errors.

Her spare cost 322. Dealer quoted 591. I gave her a real receipt with a real license number, a real phone number, and a real company van with the name on it. You can look up LCO#6792 on the BSIS website right now.

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Marianne S.

Dec 2022

★★★★★

“I had two Subaru key fobs made and Marco provided excellent service. He stayed persistent through multiple part orders to make sure everything was correct. Very thorough, punctual, and great communication throughout.”

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TJ P.

Jun 2025

★★★★★

“About 15 minutes after calling, he was already at my home. I had lost my original Ford key and he made and programmed a new one on the spot. Very fast, very professional.”

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Jennifer R.

Feb 2024

★★★★★

“The dealership quoted me $600 for a new Honda key. EZ Car Keyz did it for $225, same day, cut and programmed at my house. Works perfectly. Everyone should know this is an option.”

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What to Do When You Lose Every Lexus Key

Mobile service FAQ

My key broke in the ignition. Can you get it out?▼

Yes. On Lexus models with a traditional ignition cylinder, we can extract the broken piece without damaging the lock. Once it is out, we pull the original key code from your door lock or vehicle records and cut a factory spec blade so you are not reusing a worn key. On push-button Lexus models, the emergency blade can snap in the door lock if forced. We remove the broken piece, decode the lock, and cut a new blade that matches exactly.

What is a smart key?▼

My Lexus says key not detected. What do I do?▼

What is the FCC ID for the 2015 Lexus ES key?▼

Is all-keys-lost more expensive than a regular replacement?▼

Questions? Call (805) 790-8162