I35 Key Security, Generation by Generation
Second Generation (A33)
A transponder key with an ID46 chip and a high security blade. Your I35 runs the NATS immobilizer system, which means the car checks the chip inside the key head every time you turn the ignition. Without the right chip signal, the engine will not start, even if the physical key turns perfectly. On-board programming is possible when you already have a working master key, which keeps the process fast and affordable.
What Key Does Your I35 Actually Use?
Your I35 has a metal transponder key for starting the car and a separate plastic remote fob for locking and unlocking. The key itself has no buttons and no battery. The remote fob is the small rectangular piece with four buttons.
Infiniti I35 Key Pricing in San Diego County
Quoted on-site at your location: blank, blade cut, transponder or remote programming, full functional test before we close the van.
Our Service vs. the Service Bay
Infiniti closes the service desk at 5 and books out a week. Marco runs the van until 11:30 PM seven days a week across every 619 ZIP, with the I35 blank already stocked.
Problems We See on the Infiniti I35
Transponder Key Failure
'Engine cranks, will not start, security light on' is our common I35 ticket across the 619. The ID46 chip degraded or dropped sync with NATS. Marco hooks the Autel IM608 to OBD-II and re-registers in Carmel Valley or Otay Mesa.
Immobilizer Antenna Ring Failure
The NATS antenna ring around your ignition wears out after 20 years of heat cycles. The car cannot read the transponder even though the key is fine. We test the ring before recommending a new key; if bad, we replace and reprogram at your location.
Worn High Security Blade
We check the blade profile first on this one. Your I35 uses a laser-cut style high security blade, and after years of daily use, the cuts wear down enough that the key will not turn smoothly in the ignition, or it gets stuck. Some customers think the ignition cylinder is failing when the real culprit is just a worn key. We cut a fresh blade to factory spec using precision equipment and pair it with a new transponder chip.
Can You Program a I35 Key on Your Own?
You can program the remote fob yourself using the ignition key cycle method. Insert and remove the key at least 6 times within 10 seconds until the hazard lights flash, then turn to ACC and press a button on the remote within 5 seconds. This only programs the keyless entry remote, not the transponder chip inside the key. For transponder programming, you need professional equipment.
How It Works

Reach Out
Call or text (619) 876-1271 with your exact Infiniti I35 year and how many working keys you still have.

We Roll to You
Anywhere across San Diego County, from Oceanside down to Imperial Beach, we drive to where the Infiniti I35 is parked.

Cut, Program, Verified
We cut the high security blade on-site, program the ID46 transponder chip to your I35's NATS immobilizer using Autel IM608 or VVDI, and test the key in the ignition and doors before we leave.
Related Services
A Quick Note
Most San Diego I35 owners do not realize the I35 is a rebadged Nissan Maxima A33 with an identical NATS immobilizer and a key blade that cross-cuts between the two. Infiniti added wood trim and a softer suspension and called it luxury. Marco can knock out a spare for an I35 in Mission Valley using the same blank he just used on a Maxima in Spring Valley earlier the same day.
KEY REPLACEMENT ACROSS ALL OF SAN DIEGO COUNTY
We come to you, anywhere in San Diego County. No shop visit, no towing. Our mobile locksmith arrives at your home, office, or roadside.
Infiniti Key Work Live
Watch an Infiniti proximity fob get cut and synced on location.

Infiniti Key Replacement Call Now
QX60, Q50, QX80. Infiniti key service across all of San Diego County.


















