A smart key is the type of key your 2010 Infiniti Ex35 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.

2010 Infiniti Ex35
Mobile Key Replacement 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 2010 Infiniti Ex35 key?

The FCC ID is KR55WK48903, KR55WK49622, 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.

Mobile Service | No Dealer Trip Needed

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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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2010 Infiniti Ex35
Key Options

No dealer appointment, no towing, no hassle

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Infiniti Ex35 Speed Comparison

See how fast we finish vs dealer delays

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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2010 Infiniti Ex35 Smart key Replacement - Fast, Affordable & Professional

The dealer process for a 2010 Infiniti Ex35 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 549 plus the tow. That's half a day gone for one key.

A hedge fund analyst in Camarillo 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 KR55WK48903, came online with all 4 buttons on the first test.

He walked back to his desk with a working key. Total was around 296. Dealer wanted 549 plus a tow. His car never left the spot.

Mobile Infiniti Ex35 Key Replacement

Mobile service means you don't rearrange your day. We fit your schedule.

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2010 Infiniti Ex35

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Real Reviews From Real Driveways

Customers who never left their driveway

C

Christopher H.

Sep 2025

★★★★★

“He arrived within 30 minutes and had everything finished in another 30 minutes for two cars. Everything was programmed and tested perfectly. Cheapest price in town and very honest service.”

Google Review

A

Alan C.

Jan 2025

★★★★★

“My Sprinter van key broke and I was stranded. Marco was very friendly and helped me get three new keys quickly. I will definitely be using them again.”

Google Review

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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Infiniti Ex35 Timing and Availability 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 2010 Infiniti Ex35 key?▼

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

Questions? Call (805) 790-8162