VENTURA COUNTY
6AM - 11:30PM • MOBILE SERVICE •
Call or Text (805) 790-8162
EZ Car Keyz California bear mascot
Fast Response Locksmith

2020 Nissan Maxima
Key Replacement - Save vs Dealer in Ventura County

Lost Every Key? | We Start From Scratch

Available
2020 Nissan Maxima Smart Key
Smart Key

All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

CA BSIS LICENSE LCO#6792
Locked Out? No Stress Keys From Zero Fast Response
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Same-day 2020 Nissan Maxima car key info from EZ Car Keyz Oxnard CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Same-day 2020 Nissan Maxima car key info from EZ Car Keyz Oxnard CA
Key specialists
Zero Keys Needed
We program directly to your vehicle's computer
Fixed pricing
On-Site Key Cutting
New key cut from vehicle codes, not from a copy
Fast mobile service
Fast Recovery
Back on the road in 30-45 minutes from arrival
805 Special
10% OFFCODE:EZ-805-2026

🔥 Rescue key service, 10% off 🔥

Covers lockouts, lost keys & spares
REDEEM (805) 790-8162

2020 Nissan Maxima
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Nissan key typeMost Popular
2020 Nissan Maxima Smart Key KR5TXN7
FCC IDKR5TXN7Part #285E3-6HE6AButtons5BatteryCR2032Frequency434 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Emergency Key
2020 Nissan Maxima Emergency Key
FCC IDPart #NI06ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
MECHANICAL-KEY
2020 Nissan Maxima MECHANICAL-KEY
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Quick 2020 Nissan Maxima transponder key cut by EZ Car Keyz Oxnard CA
Skip the Dealer Markup
Professional key, honest rate
Quick 2020 Nissan Maxima transponder key cut by EZ Car Keyz Oxnard CA
🔧 PRO TIP
The 2020 Maxima runs NATS (Nissan Anti-Theft System) generation C1A with a Hitag AES transponder inside the KR5TXN7 smart key. A dying CR2032 won't just kill the remote buttons. It can trigger "KEY ID INCORRECT" or "I-KEY SYSTEM ERROR" on the dash, kill push-button start range, and make the car act like the fob doesn't exist. Before you panic, check the battery. Also check the contacts inside the fob shell, part number 285E3-6HE6A. Bent clips cause phantom failures even with a fresh cell.
Related services: Ignition Repair · Smart Key

Lost Nissan Key: Tow vs Mobile Fix

Stranded? Compare response times

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
All keys lost is no problem for us
Book Service (805) 790-8162

2020 Nissan Maxima Smart Key Replacement - Fast, Affordable & Professional

A guy down in Channel Islands Harbor in Oxnard called about his 2020 Maxima. He depended on it to get to dialysis three times a week, and his only smart key's remote buttons had quit. The push-button start still worked if he held the fob right against the column, but range was gone. He wanted a spare made before the whole thing gave out on him.

I drove out that morning. His Maxima uses the NSN14 keyway, so I brought my Lishi DAT17 to decode the emergency insert and verify the mechanical side. Cut a fresh insert blade on the spot. Then I connected through OBD to the BCM, which on these eighth-gen Maximas is the module that runs the NATS C1A security layer. Registered the new KR5TXN7 fob, confirmed the Hitag AES handshake, and paired it to the car.

While I was there, I cracked open his original fob. The CR2032 was low, but the real problem was a slightly lifted battery contact. Cleaned it, reseated the cell, paired that one fresh too. Both fobs tested clean on all five buttons, including the remote start.

He didn't have to miss a treatment or get a ride to a dealer. The whole thing took about 35 minutes in the parking lot. He could have spent half a day at a dealership and paid a lot more for one key. He left with two working fobs and got to his appointment on time.

Save vs the Dealer on Your Nissan Maxima 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: Blackstock · Carriage Square · Channel Islands Harbor · College Estates

Nissan Maxima Rapid Response, Done Right

Rapid response in the field

Emergency 2020 Nissan Maxima car key service in Oxnard CA
Smart Key | Rapid On-Site Service
2020 Nissan Maxima | Ventura County
Emergency 2020 Nissan Maxima car key service in Oxnard CA
2020 Nissan Maxima Smart Key
2020 Nissan Maxima
Smart Key | Rescue Key
Estimated arrival time to Oxnard
Priority ETA
Rapid Arrival
Available Today
Service location Oxnard
Oxnard
Help Is Close
805 Area
Same-Day Keys (805) 790-8162

Lockout to Five-Star Review

Lost key panic turned to five-star praise

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
f
frankborja25
Dec 2019
★★★★★

“We had one broken key for our Honda Civic and one working key for our Lexus. Tim came out and cut three remote car keys at a great price. All keys worked perfectly. Professional, courteous, and highly recommended.”

Google Review
I
Incognitomlo88
Jul 2025
★★★★★

“Tim was GREAT. I honestly swear he must have had my keys made before he even showed up. The entire process was insanely fast, from the initial phone call to having the keys in my hand. No one will beat the pricing, efficiency, or outstanding service.”

Google Review
Watch real savings, real jobs62KFollowers
Same-day 2020 Nissan Maxima key service review - EZ Car Keyz Oxnard CA
“Real savings, real reviews.”
Same-day 2020 Nissan Maxima key service review - EZ Car Keyz Oxnard CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Nissan Maxima Mobile Service FAQ

Real costs, no dealer surprises

How long does a Nissan dealer take to replace a 2020 Maxima smart key?
The actual key registration is about 15 minutes once a tech has CONSULT III Plus or CONSULT 4 connected and the fob in hand. But the full dealer visit is a different animal. They write up a repair order, your car waits in a queue for a certified tech, the tech pulls a seed code from the BCM and runs it through Nissan's challenge/response server for NATS C1A verification. Dealers typically block one to two hours for this. One Nissan forum poster described waiting three hours on a busy Friday just to get a spare registered. I do the same job on site in about 30 to 45 minutes.
What exactly is the smart key on my 2020 Nissan Maxima?
Why is the dealer visit so much longer than the actual programming work?
My dash says "I-KEY SYSTEM ERROR." Does that mean the smart key is dead?
Can I buy a KR5TXN7 fob online and just have someone program it?
Questions? Call (805) 790-8162

Nissan Maxima Key Service Areas

Stranded in any city? We come to you

📍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
Fast response 2020 Nissan Maxima locksmith coverage in Ventura County CA
Fast response 2020 Nissan Maxima locksmith coverage in Ventura County CA
Stranded in Ventura County? We respond fast

Lost your keys? We’ll come to wherever the car is

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

Every Nissan Maxima Key Lost? We Handle It

Lost your only key? Don't panic. We specialize in all-keys-lost and arrive ready to program.

Rush 2020 Nissan Maxima key replacement by EZ Car Keyz Oxnard CA
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
Find Us
Find Your
Car Key
Ventura County