TextEX35 Key Security, Generation by Generation
First Generation (J50)
Infiniti launched the EX35 with a 3-button smart key, an ID46 transponder chip, and the NATS immobilizer system right out of the gate. Push-button start was standard on every trim. These early models paired with a 5-speed automatic, and the key uses a CR2032 coin cell that typically lasts 2-3 years before needing replacement.
First Generation (J50, Mid-Cycle)
Infiniti upgraded the transmission to a 7-speed for 2010, but the key system stayed the same: ID46 chip, NATS immobilizer, 3-button smart key with a high-security blade. The big change for locksmiths is that DIY remote programming was removed. These years require professional OBD-II tools for any key work, no exceptions.
First Generation (J50, Late)
The final year of the EX35 kept everything consistent. Same ID46 chip, same NATS security, same smart key design. PIN code retrieval is critical on this model year for all-keys-lost situations, and the high-security blade requires a precision laser cutter to duplicate correctly.
What Key Does Your EX35 Actually Use?
This is a proximity smart key with push-button start. You keep it in your pocket and the car detects it automatically. The emergency blade inside is laser cut and fits a hidden keyhole on the driver's door handle.
Same smart key design as the earlier years. Walk up, grab the handle, push the button, drive. The CR2032 coin cell inside the fob typically lasts a few years before needing replacement.
Final year, same key. Three buttons, proximity sensing, push-button start. If your fob dies completely, you can hold it flat against the start button to get the engine going using residual power.
Infiniti EX35 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.
Why Drivers Pick Us Over the Dealer
Infiniti of San Diego on Convoy quotes by appointment. We quote on the phone, then meet you in the driveway. The end product is the same key, registered to the same BCM, in a fraction of the time.
Skip the Dealer - Call (619) 876-1271Problems We See on the Infiniti EX35
Smart Key Fob Battery Drain
The EX35 fob runs a CR2032, not rechargeable, so proximity antennas drain it whether parked at Del Mar or Mira Mesa. Below threshold, handles ignore your grab and push-button start refuses. Marco carries fresh CR2032s in the van.
NATS Immobilizer Sync Loss
Key suddenly will not start, security light blinking. EX35 owners in El Cajon and Escondido call after a battery swap or jump knocks the key out of sync with the NATS immobilizer. We run the OBD-II relearn on-site, no tow.
High Security Blade Wear
People often think the fob is the problem when the real culprit is the emergency blade inside it. The laser-cut blade on 2010 to 2012 models wears down with use, and even tiny changes in the cut depth can cause the mechanical lock to stick or refuse to turn. We carry a Silca Futura cutter on every call, so we can cut a fresh blade that matches the original specs exactly.
Can You Program a EX35 Key on Your Own?
You can program the keyless entry remote buttons yourself on 2008 and 2009 models using a key-cycle procedure in the ignition. But this only pairs the lock and unlock functions. The ID46 transponder chip still needs professional OBD-II programming to actually start the car.
No DIY option here. The 2010 and 2011 models require diagnostic equipment connected to the OBD-II port for any key programming, including remote functions. You need a locksmith or dealer for this one.
Same as 2010 and 2011. The 2012 EX35 requires professional tools for all key programming. No on-board self-programming procedure exists for this model year.
How It Works
Reach Out
Call or text (619) 876-1271 with your exact Infiniti EX35 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 EX35 is parked.
Cut, Program, Verified
We extract your EX35's PIN code, cut the high-security blade on our Silca Futura, and program the ID46 smart key through the OBD-II port using our Autel IM608.
Related Services
Worth Knowing
Here is a wrinkle most San Diego EX35 owners miss: the EX35 rides on the FM platform shared with the Nissan 370Z, but the smart-key fob inside your pocket actually uses a non-rechargeable CR2032 coin cell, not the rechargeable pack some forums claim. Marco swaps it curbside at no charge if a battery is all that is wrong, even if you just want a sanity check before heading north on I-15.
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.
