Question 1

Are you licensed and insured to work on Lincoln vehicles?

Accepted Answer

Yes. EZ Car Keyz is a California BSIS licensed locksmith company (LCO#6792), fully insured, and NASTF Vehicle Security Professional certified. Smart key work on the 2015 MKS requires the right diagnostic tooling and security access knowledge. Not every locksmith carries what's needed for this platform, and some will tell you it's dealer-only simply because they don't have the equipment. We operate under a real business name, have verifiable reviews, and have been doing this work for over eight years. You can confirm our license directly through the California Bureau of Security and Investigative Services.

Question 2

How do I know you are not a scam locksmith?

Accepted Answer

It's a fair thing to ask. Scam locksmiths are a documented problem, and luxury badges tend to attract inflated quotes. The pattern is always the same: low number on the phone, then a reason to double it once they're standing next to your car.

EZ Car Keyz has over 100,000 followers across YouTube and TikTok. You can watch us do this exact type of work before you ever call. We show up in a marked vehicle, give you a firm price on the phone, and that price doesn't change when we arrive. No luxury surcharge, no surprises.

Question 3

Will the replacement key work exactly like the original?

Accepted Answer

Yes. We program the replacement fob so that lock, unlock, trunk release, and proximity detection all function the way they're supposed to on your 2015 MKS. Every function gets tested on site before we hand it back to you.

One thing worth knowing: aftermarket fobs for this vehicle have a mixed reputation. Some owners have reported that cheap replacement fobs register in the system but then behave inconsistently, with proximity range that barely reaches the door handle or intermittent pairing drops. We use quality replacement fobs because a key that passes a basic lock test but fails you in a parking lot at night isn't actually done.

Question 4

My 2015 MKS starts fine but the door handles stopped detecting the fob. Do I need a new key?

Accepted Answer

Probably not. This is a known frustration on the MKS and shows up regularly in owner forums. If the vehicle starts and the fob communicates through the ignition, the fob itself is almost certainly fine.

Passive door handle detection uses separate antennas mounted in each door. Those antennas and their connections are a common failure point independent of the fob. Cold weather, age, and moisture can all affect them. The fix is usually on the door side, not the key side. If one handle stopped working and the other still detects normally, that's a strong sign you're looking at a door antenna or wiring issue, not a key problem. Worth diagnosing before spending money on a new fob.

Question 5

I lost both keys to my 2015 MKS. Can you still make a replacement, or does that have to go to the dealer?

Accepted Answer

All-keys-lost on the 2015 MKS is something we handle. It's not a dealer-only job. The process involves clearing the existing key memory through the diagnostic port, registering the new fob, and cutting the emergency blade that's stored inside the fob housing. Because of the security procedure involved, it does take longer than a simple spare-key job, typically 45 minutes to an hour on site. The old fobs, wherever they are, get erased in the process so they can no longer start the vehicle.

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