2003 Infiniti Q45
Car Key Made On-Site in Ventura County

Q: What is a remote head key?

A remote head key is the type of key your 2003 Infiniti Q45 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 4 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.

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 Q45 key?

The FCC ID is CWTWB1U751. 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

Available Wednesday

Remote Head

Don't wait 3-5 business days at the dealership. EZ Car Keyz gets you back on the road fast. We arrive quickly and have your new key working before your coffee gets cold.

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2003 Infiniti Q45
Key Options

We bring everything to you, wherever you are

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Infiniti Q45 Key Today vs Next Thursday

Our timeline vs dealer timeline

EZ Car Keyz

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

EZ Car Keyz wins 5 out of 6

Same-day service vs dealer wait times

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2003 Infiniti Q45 Remote Head Key Replacement - Fast, Affordable & Professional

The dealer process for a 2003 Infiniti Q45 key goes like this. You call the Infiniti service line. You schedule an appointment, usually days out. You figure out how to get the car there, which means a flatbed. You sit in a waiting lounge. You pay 395 plus the tow. That's half a day gone for one key.

A hedge fund analyst in Oxnard couldn't lose half a day. He was in a financial district parking garage on a Wednesday morning with back-to-back calls until market close. His Infiniti smart key had stopped responding after a drop on the concrete garage floor. He needed it fixed but couldn't leave the building, couldn't arrange a tow during trading hours, and couldn't push it to the weekend.

I drove to his garage during his lunch break. I decoded the emergency blade with my NSN11 Lishi and verified the mechanical side, then plugged into OBD and programmed a replacement fob. His new fob, FCC ID CWTWB1U751, came online with all 4 buttons on the first test.

He walked back to his desk with a working key. Total was around 185. Dealer wanted 395 plus a tow. His car never left the spot.

Skip the Dealer, We Drive to You

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

We Come To You (805) 790-8162 Text Us

BSIS Licensed

LCO#6792

CA Bureau of Security & Investigative Services

NASTF Certified

National Automotive Service Task Force

Fully Insured

Liability & vehicle damage coverage

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Real Infiniti Q45 Credentials, Real Work

Professional service you can trust

2003 Infiniti Q45

Remote Head Key | Licensed Pro Service

10-15 min

Certified ETA

Available Today

Oxnard

Verified Coverage

805 Area

Talk To A Pro (805) 790-8162

Infiniti Customers Love the Convenience

What doorstep service looks like in reviews

G

Gordon H.

Dec 2020

★★★★★

“My son had an issue opening the driver door on his Honda Civic. I called on New Year's Day and expected a nightmare, but they arrived quickly and fixed the problem in about half an hour.”

Google Review

E

Erick

Nov 2025

★★★★★

“A+ service at an even better price. Tim was a lifesaver. I lost my original and only key for my Audi and he was willing to come to my location at 8pm the same day. He worked fast, communicated clearly, and made sure everything worked before leaving.”

Google Review

G

Gregorio P.

May 2021

★★★★★

“Steve was incredibly helpful when I lost my car keys. He came out the exact same day and I only waited about 30 minutes. I really needed to get to work and he completely saved me.”

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EZ Car Keyz technician with satisfied customer

★ 5.0 out of 5 - Based on 1,000+ Google Reviews

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2003 Infiniti Q45 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 remote head key?▼

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

What is the FCC ID for the 2003 Infiniti Q45 key?▼

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

Questions? Call (805) 790-8162