VENTURA COUNTY
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Fast Response Locksmith

2003 Infiniti I35
Key Replacement - Save vs Dealer in Ventura County

Today, Not Thursday | Same-Day Service

Available
2003 Infiniti I35 Transponder Key
Transponder Key

Time matters when you need a car key. Our technicians are dispatched quickly with everything needed to cut and program your replacement key on the spot. No delays, no runaround.

CA BSIS LICENSE LCO#6792
Express Service Fast Programming Back on Road Fast
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Stranded without a 2003 Infiniti I35 key? EZ Car Keyz Ventura CA can help
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Stranded without a 2003 Infiniti I35 key? EZ Car Keyz Ventura CA can help
Key specialists
Fast Response
Average arrival time: 15-25 minutes
Fixed pricing
Same-Day Service
Call now, get your key today - no waiting days
Fast mobile service
Done in Under 1 Hour
Key cut and programmed in 20-45 minutes
805 Special
10% OFFCODE:EZ-805-2026

🔥 Rapid key service, 10% off 🔥

Instant savings on same-day service
REDEEM (805) 790-8162

2003 Infiniti I35
Key Options

Dealer-grade key for a fair, honest price

Transponder Key
Most popular Infiniti key typeMost Popular
2003 Infiniti I35 Transponder Key
FCC IDPart #K-NI02TButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Metal Key
2003 Infiniti I35 Metal Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Emergency 2003 Infiniti I35 key fob made from scratch by EZ Car Keyz Ventura CA
Skip the Dealer Markup
Professional key, honest rate
Emergency 2003 Infiniti I35 key fob made from scratch by EZ Car Keyz Ventura CA
🔧 PRO TIP
The 2003 I35 runs Nissan's NATS immobilizer system under the Infiniti badge. It uses a transponder turn-key, no remote, no fob, no battery to swap. The key has a chip molded into the head that the immobilizer reads at startup. What trips people up: the key blank looks almost identical to a basic non-chip key for the same era Nissan products, but if you cut and copy without registering the chip, the car cranks and won't start. A locksmith who works late-model Nissan regularly is already set up for this one. The procedure, the tooling, the blank compatibility - it all overlaps. Same generation security architecture, different badge on the hood.
Related services: Ignition Repair · Smart Key

Quick Service vs Long Wait

Done today vs done next week

EZ Car Keyz
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
✓ Yes
EZ Car Keyz wins 5 out of 6
Back on the road before the dealer even calls back
Book Service (805) 790-8162

2003 Infiniti I35 Transponder Key Replacement - Fast, Affordable & Professional

A guy in Midtown Ventura called me on a Tuesday afternoon. He'd had his I35 cut at a hardware store a few weeks earlier because his original key was getting worn. The cut was fine. Car turned over, fired right up - once. Then the next morning, nothing. Crank, no start. He'd already swapped the battery in the car thinking that was it.

He wasn't sure what a transponder was. He thought the hardware store key guy would have handled everything. I hear that a lot.

I pulled up to his place off Main Street. He had both keys with him - the original worn one and the new hardware store copy. The original still started the car. The copy cranked it and killed it immediately, which is exactly what a non-programmed transponder key does on this system. The chip in the new blank had never been registered.

I programmed the copy to his car's immobilizer right there in his driveway. Both keys working, both verified through a few cold start cycles before I left. He asked why the hardware store guy didn't mention any of this. Honestly, a lot of them don't know, or they assume the customer knows to follow up. Now he has two keys that actually work, and a backup for the first time in years.

Dealer route for this would have been a tow or a drive-in, a wait for the service department, and a bill that made no sense for something this simple. He paid a fraction of that and didn't move the car once.

Save vs the Dealer on Your Infiniti I35 Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

Get Pricing (805) 790-8162 Text Us
BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: Casitas Springs · College · Downtown Ventura · East Ventura

Infiniti I35 Rapid Response, Done Right

Rapid response in the field

All keys lost service for 2003 Infiniti I35 by EZ Car Keyz Ventura CA
Transponder Key | Rapid On-Site Service
2003 Infiniti I35 | Ventura County
All keys lost service for 2003 Infiniti I35 by EZ Car Keyz Ventura CA
2003 Infiniti I35 Transponder Key
2003 Infiniti I35
Transponder Key | Done in Minutes
Estimated arrival time to Ventura
Fast Dispatch
Rapid Arrival
Available Today
Service location Ventura
Ventura
Rapid Service Zone
805 Area
Same-Day Keys (805) 790-8162

Real Infiniti Speed, Real Reviews

Fast work, lasting impressions

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
M
Miston
Dec 2025
★★★★★

“My ignition would not turn in La Jolla and I thought I needed a tow. EZ Car Keyz repaired the ignition on the spot and also made a spare key for safety. The technician worked carefully and confidently.”

Google Review
R
Rick R.
Apr 2021
★★★★★

“Niv showed up, did his thing, and just like that I had two new keys for a fraction of what the dealership quoted. I have zero reservations recommending him to anyone who needs car keys replaced.”

Google Review
Watch real savings, real jobs62KFollowers
Locked out rescue review for 2003 Infiniti I35 - EZ Car Keyz Ventura CA
“Real savings, real reviews.”
Locked out rescue review for 2003 Infiniti I35 - EZ Car Keyz Ventura CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Infiniti I35 Mobile Service FAQ

Real costs, no dealer surprises

What is the cheapest way to replace my 2003 Infiniti I35 key?
Call a mobile locksmith before you call the dealer. Infiniti dealers for this era typically quote a key replacement plus a programming fee, and if you don't have a working key to drive in, a tow gets added on top. With EZ Car Keyz, I come to you in Ventura, cut the blade, program the transponder chip on site, and verify it starts before I leave. No tow, no waiting days for a VIN-ordered part, no separate line items for the blank, the cut, and the labor. You get a working key at your location for way less than the dealer path.
How much more does all-keys-lost cost compared to making a spare?
Do aftermarket keys work on the 2003 I35, or should I stick with OEM?
My 2003 I35 starts fine with one key but the other key cranks and won't fire. What's happening?
Can I get a key made by VIN without towing the car to the dealer?
Questions? Call (805) 790-8162

Infiniti I35 Key Service Areas

Same-day service, every location

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
Lockout rescue coverage for 2003 Infiniti I35 in Ventura County CA
Lockout rescue coverage for 2003 Infiniti I35 in Ventura County CA
Stranded in Ventura County? We respond fast

Same-day service available in all listed cities

SOS Call (805) 790-8162
Filmed on Location
Infiniti I35 car key replacement video
113K+ Chose EZ Car Keyz

Infiniti I35 Key, No Waiting

Quick response, quick service, quick results. Your key is our only priority when we arrive.

Locked out of your 2003 Infiniti I35? Get help from EZ Car Keyz Ventura CA
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