VENTURA COUNTY
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2010 Kia Optima
Key Replacement - Save vs Dealer in Ventura County

Mobile Service | No Dealer Trip Needed

Available
2010 Kia Optima Smart Key
Smart Key

Our fully-equipped mobile unit comes directly to your home, office, or wherever you are. No towing, no waiting rooms, no rearranging your day. We handle everything on-site.

CA BSIS LICENSE LCO#6792
On-Site Service No Tow Required Your Time, Your Place
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
2010 Kia Optima car key service at your door in Ventura CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2010 Kia Optima car key service at your door in Ventura CA
Key specialists
Key Specialists
Fully equipped mobile unit - all makes and models
Fixed pricing
At Your Location
Home, office, parking lot - wherever you are
Fast mobile service
No Towing Needed
We handle everything on-site, even all-keys-lost
805 Special
10% OFFCODE:EZ-805-2026

🔥 Stay home, save money, get keys 🔥

Valid anywhere we service your vehicle
REDEEM (805) 790-8162

2010 Kia Optima
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Kia key typeMost Popular
2010 Kia Optima Smart Key SY5HMFNA04
FCC IDSY5HMFNA04Part #95440-3N250Buttons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
2010 Kia Optima Transponder Key
FCC IDPart #G0001-G2500ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2010 Kia Optima Remote OSLOKA-310T
FCC IDOSLOKA-310TPart #95430-3K202Buttons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2010 Kia Optima Remote NYOSEKS-TF10ATX
FCC IDNYOSEKS-TF10ATXPart #95430-2T000Buttons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Smart Key
2010 Kia Optima Smart Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote Head Key
2010 Kia Optima Remote Head Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
On-site 2010 Kia Optima smart key options from EZ Car Keyz Ventura CA
Skip the Dealer Markup
Professional key, honest rate
On-site 2010 Kia Optima smart key options from EZ Car Keyz Ventura CA
🔧 PRO TIP
The 2010 Kia Optima (third-gen, XG platform) runs the Hitag2 transponder protocol on its smart key system. Kia and Hyundai share the same immobilizer backend, so an SY5HMFNA04 is basically cousins with the Hyundai Sonata's fob from the same era. A dying CR2032 won't just kill remote lock/unlock. It can trigger "Smart Key Not Detected" on the dash and make push-button start stop responding entirely. Swap the battery before you panic.
Related services: Ignition Repair · Smart Key

Kia Key: We Come to You

One comes to you, one makes you wait

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
Your driveway beats their waiting room
Book Service (805) 790-8162

2010 Kia Optima Smart Key Replacement - Fast, Affordable & Professional

Guy landed at LAX after a work trip overseas, walked up to garage level 3, and his 2010 Kia Optima just sat there. Fob did nothing. No chirp, no locks, no trunk pop. The emergency blade was inside his carry-on, which was inside the trunk.

He called the closest Kia dealer. Earliest opening was Thursday. It was Tuesday morning. He found me online and I headed out from the Ventura Keys area.

I was at the garage in about 40 minutes. Got the door open, then connected my IM608 to the OBD-II port under the dash. The system confirmed the SY5HMFNA04 was still registered to the car. No fault in the SMARTRA immobilizer module, no lost key scenario. Just a dead CR2032 causing the "Smart Key Not Detected" message on the cluster.

Swapped the battery, cleared the stored fault, and tested every button: lock, unlock, trunk, panic. Then push-button start, then engine off, then restart. Checked that the door handle touch sensor picked up the fob from a few feet away. All normal.

He sat in the driver's seat for a second and just exhaled. Two days of waiting and a tow versus being on the freeway home before lunch.

The whole thing took less time than it took him to find the garage elevator.

Save vs the Dealer on Your Kia Optima 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

Kia Optima Rapid Response, Done Right

Rapid response in the field

On-site 2010 Kia Optima car key programming in Ventura CA
Smart Key | Rapid On-Site Service
2010 Kia Optima | Ventura County
On-site 2010 Kia Optima car key programming in Ventura CA
2010 Kia Optima Smart Key
2010 Kia Optima
Smart Key | Made at Your Door
Estimated arrival time to Ventura
We Come to You
Rapid Arrival
Available Today
Service location Ventura
Ventura
We Come Here
805 Area
Same-Day Keys (805) 790-8162

Real Reviews From Real Driveways

Customers who never left their driveway

D
Dan G.
Mar 2024
★★★★★

“They responded instantly, showed up within an hour, and arrived exactly when they said they would. Made a copy and programmed a fob for my 2014 car with a worn ignition in about 15 minutes. The new key works perfectly and feels like a dealer key.”

Yelp Review
T
TJ P.
Jun 2025
★★★★★

“About 15 minutes after calling, he was already at my home. I had lost my original Ford key and he made and programmed a new one on the spot. Very fast, very professional.”

Google Review
Z
Zebadiah A.
Oct 2025
★★★★★

“Super fast service. About 20 minutes from the call he was already there. He had an authentic replacement on hand and made a spare key for my 2017 Nissan Rogue in about 15 minutes. Great prices, friendly, and very professional.”

Google Review
Watch real savings, real jobs62KFollowers
On-site 2010 Kia Optima key service review - EZ Car Keyz Ventura CA
“Real savings, real reviews.”
On-site 2010 Kia Optima key service review - EZ Car Keyz Ventura CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Kia Optima Mobile Service FAQ

Real costs, no dealer surprises

How long does the Kia dealer take for a 2010 Optima smart key replacement?
The actual programming on the dealer's KDS (Kia Diagnostic System) takes about 15 minutes. But that 15 minutes is buried inside a much longer process. Owners on Kia forums report two- to three-week waits just to get on the service schedule. If the fob with part number 95440-3N250 is not in stock, tack on more days for the order. The dealer typically blocks a full hour of labor for the visit, and after the Kia/Hyundai theft crisis, some locations add an immobilizer software update to every key appointment, which pads the time and the bill further.
What exactly is the smart key on a 2010 Kia Optima?
Why does a Kia dealer key appointment take so much longer than the actual programming?
My 2010 Optima says "Smart Key Not Detected" but the fob battery is new. What now?
Can I buy an aftermarket smart key fob online and program it myself?
Questions? Call (805) 790-8162

Kia Optima Key Service Areas

Your location, our destination

📍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
2010 Kia Optima car key service coverage in Ventura County CA
2010 Kia Optima car key service coverage in Ventura County CA
Stranded in Ventura County? We respond fast

We come to your exact location in any of these cities

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Kia Optima car key replacement video
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Mobile Kia Optima Key Replacement

Mobile service means you don't rearrange your day. We fit your schedule.

We come to you for 2010 Kia Optima car key - EZ Car Keyz Ventura CA
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Ventura County