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2016 Hyundai Elantra
Key Replacement - Save vs Dealer in Ventura County

1,000+ Five-Star Reviews | Certified Pros

Available
2016 Hyundai Elantra Smart Key
Smart Key

Not all locksmiths are created equal. EZ Car Keyz is BBB A+ rated, fully licensed and insured, and trusted by thousands of customers across the area. Your vehicle is in good hands.

CA BSIS LICENSE LCO#6792
BBB A+ Rated Licensed & Bonded Certified Techs
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
2016 Hyundai Elantra lost key replacement options from EZ Car Keyz Thousand Oaks CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2016 Hyundai Elantra lost key replacement options from EZ Car Keyz Thousand Oaks CA
Key specialists
BSIS Licensed
Licensed by the California Bureau of Security
Fixed pricing
NASTF Certified
National Automotive Service Task Force approved
Fast mobile service
1,000+ Reviews
Five-star rated on Google, Yelp, and BBB A+
805 Special
10% OFFCODE:EZ-805-2026

🔥 5-star service at a discount 🔥

Valid on licensed & insured service
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2016 Hyundai Elantra
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Hyundai key typeMost Popular
2016 Hyundai Elantra Smart Key SY5MDFNA433
FCC IDSY5MDFNA433Part #95440-3X500Buttons4BatteryCR2032Frequency434 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Push To Start
2016 Hyundai Elantra Smart Key CQOFD00120
FCC IDCQOFD00120Part #95440-F2000Buttons4BatteryCR2032Frequency434 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2016 Hyundai Elantra Remote TQ8RKE-3F03
FCC IDTQ8RKE-3F03Part #95430-A5200Buttons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2016 Hyundai Elantra Remote OSLOKA-423T
FCC IDOSLOKA-423TPart #95430-F2300Buttons4BatteryCR2032Frequency434 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2016 Hyundai Elantra Smart Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote Head Key
2016 Hyundai Elantra Remote Head Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2016 Hyundai Elantra replacement key fob with no original from EZ Car Keyz Thousand Oaks CA
Skip the Dealer Markup
Professional key, honest rate
2016 Hyundai Elantra replacement key fob with no original from EZ Car Keyz Thousand Oaks CA
🔧 PRO TIP
The 2016 Elantra is one of those tricky ones. The fifth-gen (MD/UD) Smart Key trim uses an ID46 (Hitag2) chip in the SY5MDFNA433 proximity fob, but a huge number of US-market SE and base trims shipped with zero immobilizer. No chip in the key at all. That is the exact gap behind the "Kia Boyz" USB theft method, covered under Hyundai campaign 246. Check your instrument cluster at startup: if there is no immobilizer warning lamp (little key icon), your car likely has no transponder security whatsoever. Knowing which setup you have changes the whole job.
Related services: Ignition Repair · Smart Key

Compare Hyundai Elantra Key Credentials

Our credentials vs dealer service - side by side

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
BSIS licensed with OEM quality guaranteed
Book Service (805) 790-8162

2016 Hyundai Elantra Smart Key Replacement - Fast, Affordable & Professional

Got a call from a wife in the Sunset Hills area of Thousand Oaks. Her husband was at a Korean BBQ spot when someone grabbed his jacket off the booth. Keys, wallet, phone, gone. He borrowed a stranger's phone, called the police, and she called me.

His 2016 Hyundai Elantra was sitting in the parking lot with zero keys. She had already tried the dealer. Their answer: tow it in, three to five business days, full smart system reprogram since the stolen fob could still unlock and start the car.

I was there inside the hour. All-keys-lost on these means wiping the key memory through the OBD port so the stolen SY5MDFNA433 can never touch the car again. I used my IM608 to pull the immobilizer module, clear old key data from the Smartra 3 unit on the steering column, and register two fresh proximity fobs from scratch. Decoded the lock cylinder, cut both emergency blades, tested push-button start, door handle proximity on all four doors, trunk release, remote lock and unlock.

He was standing in the parking lot watching the whole thing. When both fobs started the car clean, he just exhaled and said "OK." That was it. No drama. He drove home that night.

The stolen fob is dead now. Once the Smartra 3 memory is wiped and new keys are written, the old fob is a plastic shell with a worthless chip inside.

Save vs the Dealer on Your Hyundai Elantra 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: Botanic Garden · Casa Conejo · Conejo Oaks · Dos Vientos

Hyundai Elantra Rapid Response, Done Right

Rapid response in the field

Lost 2016 Hyundai Elantra key replacement by EZ Car Keyz in Thousand Oaks CA
Smart Key | Rapid On-Site Service
2016 Hyundai Elantra | Ventura County
Lost 2016 Hyundai Elantra key replacement by EZ Car Keyz in Thousand Oaks CA
2016 Hyundai Elantra Smart Key
2016 Hyundai Elantra
Smart Key | Pro Grade Service
Estimated arrival time to Thousand Oaks
Proven Timing
Rapid Arrival
Available Today
Service location Thousand Oaks
Thousand Oaks
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Five Stars From Verified Customers

Reviews that back up our credentials

T
T Klein
May 2020
★★★★★

“I needed a second key made for my 2012 Nissan Altima. They arrived quickly, finished in about 15 minutes, and gave me the best price I could find.”

Google Review
W
Winter K.
Dec 2025
★★★★★

“I lost my key and called EZ Car Keyz. Marco was great. He arrived quickly, explained everything clearly, and kept me informed throughout the entire process. The service was fast, professional, and fairly priced.”

Google Review
C
Christopher H.
Sep 2025
★★★★★

“He arrived within 30 minutes and had everything finished in another 30 minutes for two cars. Everything was programmed and tested perfectly. Cheapest price in town and very honest service.”

Google Review
Watch real savings, real jobs62KFollowers
Customer review after losing 2016 Hyundai Elantra key - EZ Car Keyz Thousand Oaks CA
“Real savings, real reviews.”
Customer review after losing 2016 Hyundai Elantra key - EZ Car Keyz Thousand Oaks CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Hyundai Elantra Mobile Service FAQ

Real costs, no dealer surprises

I lost all my keys for my 2016 Hyundai Elantra. Can you make new ones without going to the dealer?
Yep. All-keys-lost on the 2016 Elantra is a standard job for me. I connect through the OBD-II port, access the Smartra 3 immobilizer module (the antenna unit on the steering column, board number 95420-3X500 on most Smart Key trims), wipe the old key registrations, and write new SY5MDFNA433 fobs from scratch. Emergency insert blade gets cut on site. The old missing fobs are electronically erased, so they cannot start or unlock the car anymore. The whole thing runs about 30 to 45 minutes depending on the timed reset cycle. No tow, no waiting days.
Is going to a mobile locksmith cheaper than the Hyundai dealer for a smart key replacement?
Does your price include cutting and programming, or are those separate charges?
My 2016 Elantra does not have an immobilizer. Is it vulnerable to the USB steering column theft?
My Elantra smart key works sometimes and other times the dash says "Key is not detected." What is going on?
Questions? Call (805) 790-8162

Hyundai Elantra Key Service Areas

Trusted by thousands across the area

📍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
Emergency 2016 Hyundai Elantra locksmith service area in Ventura County CA
Emergency 2016 Hyundai Elantra locksmith service area in Ventura County CA
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Licensed and insured across all service areas

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Hyundai Elantra car key replacement video
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Certified Hyundai Elantra Key Experts

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Lost your 2016 Hyundai Elantra key? Call EZ Car Keyz Thousand Oaks CA now
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