2017 Hyundai Elantra
Key Replacement - Save vs Dealer in Ventura County

Q: How much more does an all-keys-lost job cost compared to just adding a spare?

More. Always. When you have a working key, adding a spare to a 2017 Elantra smart key system is a relatively quick programming job. The vehicle already has a registered key, so we are adding to an existing setup. All-keys-lost is a different procedure entirely. The immobilizer has no active reference key, so the system has to be accessed at a deeper level using a PIN pulled from the vehicle.

Q: Are aftermarket fobs for the 2017 Elantra worth buying, or should I stick with OEM?

Aftermarket fobs are hit or miss. The issue is not always the shell or the buttons, it is the internal electronics. Some aftermarket units program without a problem and hold the pairing. Others fail mid-programming, lose sync after a few weeks, or simply will not take at all with certain tools. The fob for this vehicle has a specific factory identifier that has to match what the vehicle's security system expects.

Q: My 2017 Elantra starts fine but the door handle touch unlock stopped working. Is the fob the problem?

Probably not the fob. If the push-button start is reading the key without complaint, the fob is communicating with the car. Touch unlock on these door handles relies on a capacitive sensor in the handle itself and a separate antenna loop near that door. When start works but touch unlock does not, the failure is almost always on the door side, not the key side.

Q: I bought a used 2017 Elantra and only got one key. Can the previous owner's fob still start my car?

Yes, until you do something about it. The vehicle's security system holds programmed key slots, and any fob registered before you took ownership is still active unless those slots are cleared. A previous owner, or anyone they gave a fob to, could potentially still use it. The right move is an all-keys-lost reset followed by programming only your key or keys. That wipes every previously registered fob and starts clean.

Emergency Key Service | Fast Response

Available

Smart Key

Whether you lost your only key, it was stolen, or it just stopped working, we handle it. No existing key needed. Our technicians program new keys directly to your vehicle's computer.

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Lost Every Key? No Original Needed On-Site Service

Fast Response15-25

min arrival

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Stranded without a 2017 Hyundai Elantra key? EZ Car Keyz Thousand Oaks CA can help

Zero Keys Needed

We program directly to your vehicle's computer

On-Site Key Cutting

New key cut from vehicle codes, not from a copy

Fast Recovery

Back on the road in 30-45 minutes from arrival

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🔥 Stranded? Save on your new key 🔥

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2017 Hyundai Elantra
Key Options

Dealer-grade key for a fair, honest price

Push To Start

Hyundai Elantra Emergency Options

Dealer tow vs mobile fix - compare the cost

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

New key made on the spot, no original required

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2017 Hyundai Elantra Smart Key Replacement - Fast, Affordable & Professional

A call came in from Wildwood on a Tuesday afternoon. Guy was parked in his driveway, had a working key, but his 2017 Elantra had been showing a key-not-detected warning for three days.

He figured the battery was dead, swapped it, and the warning cleared for about six hours. Then it came back. He assumed the fob was failing and started pricing dealer replacements. The quote he got was not encouraging.

When I pulled up, I asked him to hand me both the fob and the battery he had just installed. The battery was correct, CR2032, right off the shelf. I opened the fob on his hood. The new battery was seated but the contact clip had a slight outward bow to it, meaning the cell was making contact just well enough to read on a meter but not consistently enough to hold a stable signal. Classic. I straightened the clip, cleaned the contact faces, and reseated the battery.

Then I walked every function. Lock, unlock, panic, and the fourth button. Touch unlock on both door handles. Push-button start from the driver seat and from outside the vehicle at distance. Everything held.

He had already mentally budgeted for a full fob replacement and programming visit at the dealer, which would have meant an appointment, possibly days out, and a bill that would have stung. Took me about twenty minutes in his driveway. He kept saying he felt like he should have caught it himself. I told him that clip is the one thing nobody talks about online.

Save vs the Dealer on Your Hyundai Elantra Key

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

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Hyundai Elantra Rapid Response, Done Right

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2017 Hyundai Elantra

Smart Key | Rescue Key

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Customers We Got Back on the Road

Real emergencies, real five-star results

J

Joel A.

Jan 2019

★★★★★

“Camarillo mobile service made a key for my Hyundai accent, they arrived fast and made me a key for a great price, will definitely call again for all my lock and key needs!”

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A

Angel L.

May 2026

★★★★★

“Very happy with the fast service replacing my lost car key for my dodge. Great price no unexpected charges. Highly recommended. Would call again if I need another service”

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C

Christopher G.

Apr 2024

★★★★★

“He was an excellent worker and fast at his job I will definitely go back to u guys if I ever need help with my keys”

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Locked out rescue review for 2017 Hyundai Elantra - EZ Car Keyz Thousand Oaks CA

★ 5.0 out of 5 - Based on Over 1,400 five-star Google reviews

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Hyundai Elantra Mobile Service FAQ

Real costs, no dealer surprises

What is the cheapest way to replace a 2017 Hyundai Elantra key?▼

Call a mobile locksmith first. Hyundai dealers on smart key replacements for this generation are rarely a quick or affordable experience. Owners on forums consistently report dealer quotes that include the key itself, programming labor, and sometimes a required tow if there are no working keys left. The total adds up fast. With EZ Car Keyz, I come to you in Thousand Oaks, program on site through the OBD port, and you are back on the road the same visit.