2003 Infiniti G35
Fast-Track Key Service in Ventura County

Q: How do I know you are not a scam locksmith?

Ask for a license number, a written estimate for your specific Infiniti model, and the company name before they roll. One G35 owner called a locksmith who showed up but could not configure the controls on the Infiniti platform. A 2023 QX50 owner contacted multiple locksmiths and nobody could do it. The pattern is clear: many locksmiths advertise all cars but do not actually have Nissan/Infiniti intelligent key tools. A real Infiniti-capable locksmith will name the exact tools and process before they start, not show up and wing it.

Q: Will the replacement key work exactly like the original?

Yes. We program both the transponder chip for engine start authorization and the remote functions for lock, unlock, trunk, and panic. We test everything before we leave. G37 owners on Reddit describe negative experiences with keys that were not programmed correctly and stopped being recognized by the car. We use professional-grade Nissan/Infiniti diagnostic tools and verify every function on the spot so you do not have to come back for a fix.

Q: What battery does the 2003 Infiniti G35 key fob use?

The 2003 Infiniti G35 uses a CR1620 or CR1616 or CR2032 battery. You can pick one up at most auto parts stores or pharmacies for a few dollars. When we make a replacement key, we always install a fresh battery so you are starting with a full charge. If your Infiniti fob is losing range or the push-to-start is intermittent, a new battery is the first thing to try before assuming the key needs to be replaced.

Q: What happens if something goes wrong after you leave?

We warranty our work. If the key we made has any issue under normal use, we come back and fix it or replace it. Infiniti-specialist locksmiths in the industry offer 90-day programming warranties and 1-year parts coverage as standard practice. Locksmiths on Reddit warn that certain Nissan/Infiniti BCM ranges can brick during programming if done with the wrong tools, and the repair runs into the thousands. With us, if we made the key and something goes wrong, we take care of it.

Same-Day Service | No Towing Required

Available Wednesday

Remote Head

Transponder

CA BSIS LICENSE LCO#6792

Same-Day Service Done in Under 1 Hour Fast Response Time

Fast Response15-25

min arrival

1,000+reviews

Call (805) 790-8162 Text Us

Quick Turnaround

Most keys completed in under 45 minutes on-site

Fully Insured

Liability coverage and background-checked technicians

On-Site Key Cutting

New key cut from vehicle codes, not from a copy

805 Special

10% OFFCODE:EZ-805-2026

🔥 Fast keys, plus 10% off today 🔥

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2003 Infiniti G35
Key Options

Same-day key replacement in under one hour

Turn Key Ignition

Licensed Infiniti Key Pro vs Dealership

Licensed, certified, and reviewed - compare the credentials

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

Licensed, insured, and 1000+ five-star reviews

Trusted Pros (805) 790-8162

2003 Infiniti G35 Remote Head Key Replacement - Fast, Affordable & Professional

Here's what a real-time 2003 Infiniti G35 key replacement looks like start to finish. You call me with your VIN. I confirm the fob type, grab the right blank, and drive to you. When I arrive, I decode the lock if needed, cut the blade, connect to OBD, run security access, program the fob, and test it. That's the whole job.

A managing partner at a law firm in Simi Valley watched me do exactly that on her G35 in the underground garage one afternoon. She'd lost her spare and wanted a replacement before she was down to one key. She asked me to walk her through each step.

I decoded her door lock with my NSN11 Lishi, then cut the emergency blade on my machine. After that I connected the IM608, ran security access, pulled the PIN, and programmed the new fob. Her remote head key, FCC ID CWTWB1U751, was a 4-button smart key. I tested every button, started the car three times, and confirmed range across the garage.

Total time from arrival to finished key was 35 minutes. Cost was 185. Dealer charges 395 and takes days. She said watching it happen made it look simple. It is, with the right tools and 8 years of working on Nissan-family platforms.

Need a 2003 Infiniti G35 Key Today?

Same-day service, 20-30 minute arrival, key done in under an hour. Call EZ Car Keyz now.

Call Now (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

Google Guaranteed

Verified & backed by Google

Emergency Rescue in Progress

Emergency service, real results

2003 Infiniti G35

Remote Head Key | Rescue Key

30-35 min

Priority ETA

Available Today

Simi Valley

Help Is Close

805 Area

Get Help Now (805) 790-8162

Infiniti Customers Love Our Fast Service

Same-day service, five-star results

A

Alexx C.

Dec 2025

★★★★★

“I needed a car key replacement in Hillcrest and EZ Car Keyz helped me immediately. The technician programmed a new smart key right next to my car and tested every function before leaving. Fast, friendly, and very professional.”

Google Review

K

Kane G.

Apr 2024

★★★★★

“Tim is a hero. He programmed a master proximity key for a newer Volkswagen that multiple locksmiths refused to touch. He spent hours until late at night making sure every function worked perfectly. The skill level here is incredible.”

Yelp Review

E

Edelson E.

Oct 2025

★★★★★

“I got locked out of my vehicle and also lost my key. Marco came out, made a new key for my Toyota, and got me back on the road. He was professional, friendly, and clearly knows what he is doing.”

Google Review

EZ Car Keyz technician with satisfied customer

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

Fast Help (805) 790-8162

Infiniti G35 Key Credential Questions

We come to you - here's how

Are you licensed and insured to work on Infiniti vehicles?▼

Yes. EZ Car Keyz is licensed by the California Bureau of Security and Investigative Services, which is the state agency that regulates locksmiths. We carry full liability insurance and are NASTF Vehicle Security Professional certified, which means we have passed the background checks and credentialing required to access security data for Infiniti and other manufacturers. Infiniti intelligent key work involves accessing the NATS immobilizer and BCM, and you want someone with proper credentials and insurance handling that on your vehicle.

How do I know you are not a scam locksmith?▼

Will the replacement key work exactly like the original?▼

What battery does the 2003 Infiniti G35 key fob use?▼

What happens if something goes wrong after you leave?▼

Questions? Call (805) 790-8162