A smart key is the type of key your 2003 Infiniti Fx35 uses. It contains a programmed chip that communicates with your vehicle NATS immobilizer and BCM to verify it is an authorized key before the engine will start. It also has 3 buttons for remote lock, unlock, and other functions depending on your trim level. Without proper programming, even a perfectly cut key will not start your Infiniti.

2003 Infiniti Fx35
Key Made at Your Home or Office in Ventura County

Q: Why does the dealer take so long on Infiniti keys?

Because Infiniti intelligent keys are VIN-specific and often need to be ordered from a central warehouse. The dealer cannot just grab a blank off the shelf. They order the key, wait for it to arrive pre-coded to your VIN, then schedule shop time for programming through their diagnostic system. Infiniti dealers also charge separately for the fob, cutting, and programming labor. One FX owner said the dealer wanted 150 just for diagnostics before any work started. We cut all of that out and do the job at your vehicle in one visit.

Q: What is the FCC ID for the 2003 Infiniti Fx35 key?

The FCC ID is NHVWBU612, CWTWB1U751, NI04-PT, KBRASTU15. 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. Having this number ready when you call speeds up the process and confirms we are bringing the right key to your location.

Q: Is same-day service available for all-keys-lost?

Yes, for most Infiniti models. We carry common Infiniti key blanks on our truck and have the BCM programming tools to handle most all-keys-lost situations the same day you call. The full AKL process including security access, PIN extraction, key generation, cutting, and BCM registration typically takes 45 to 90 minutes on site. Infiniti dealers cannot do same-day AKL because the key must be ordered by VIN and shipped, which takes days. We bring everything to your vehicle and get it done in one visit.

No Towing Required | We Bring the Shop

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All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

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2003 Infiniti Fx35
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Infiniti Fx35 Key Today vs Next Thursday

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Dealership

Average Cost

✓ $$

✕ $$$$

Location

✓ We come to you

✕ You drive there

Wait Time

✓ 20-45 min

✕ 2-5 days

Same-Day

✓ Yes

✕ Rarely

All Keys Lost

✓ No problem

✕ Tow required

OEM Quality

✓ Yes

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2003 Infiniti Fx35 Smart key Replacement - Fast, Affordable & Professional

A building superintendent managing a luxury apartment complex in Port Hueneme had a practical problem. He drove a 2003 Infiniti Fx35 himself and maintained two company vehicles for the complex. He needed a spare for his own car plus spares for both company vehicles. The dealer quoted 395 per key, times three. That wasn't passing through the building's monthly maintenance budget.

He also couldn't pull three vehicles off-site one at a time. When a pipe bursts or a lock jams, a tenant doesn't care that the maintenance van is at the Infiniti dealer.

I met him at the apartment complex late one afternoon. I used my ACDP to back up the IMMO module data before programming multiple keys in one session, which gives me a safety net when adding several keys to the same vehicle in sequence. His smart key, FCC ID NHVWBU612, used a 3-button layout. I programmed all three vehicles and tested every key individually.

Three vehicles, one visit, total was 185 for the set. Dealer wanted 395 per key before fob blanks. He kept every vehicle on-site, handled two tenant calls while I worked, and left with all spares tested and labeled.

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Your car stays where it is. We drive to you with all the tools and key blanks on board.

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2003 Infiniti Fx35

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Infiniti Customers Love the Convenience

What doorstep service looks like in reviews

D

Diya M.

Jan 2025

★★★★★

“Fast, affordable, and a great price. Marco did an amazing job and made a key for our Nissan Kicks quickly and professionally. Everything worked perfectly.”

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M

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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Z

Zebadiah A.

Oct 2025

★★★★★

“Super fast service. About 20 minutes from the call he was already there. He had an authentic replacement on hand and made a spare key for my 2017 Nissan Rogue in about 15 minutes. Great prices, friendly, and very professional.”

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2003 Infiniti Fx35 Same-Day Service FAQ

Money questions, straight answers

How long does the Infiniti dealer take for key replacement?▼

Longer than you would think. Infiniti dealers often need to order your intelligent key by VIN, which can take several business days. Owners in key-order discussions report being told 2 to 3 days but then having to chase the service manager when the key does not show up. On the Nissan side of the same platform, one owner waited 3.5 weeks just for a dealer appointment. Once the key arrives, expect at least an hour at the dealer for programming and testing. Add it all up and you can easily be without your Infiniti for a week or more.

What is a smart key?▼

Why does the dealer take so long on Infiniti keys?▼

What is the FCC ID for the 2003 Infiniti Fx35 key?▼

Is same-day service available for all-keys-lost?▼

Questions? Call (805) 790-8162