Question 1

Are you licensed and insured to work on Land Rover vehicles?

Accepted Answer

Yes. EZ Car Keyz is licensed through the California Bureau of Security and Investigative Services (BSIS License LCO#6792) and carries full insurance. We are also NASTF Vehicle Security Professional certified, which gives us authorized access to the security data and programming protocols needed for vehicles like the 2016 LR4.

Land Rover key work is not something every locksmith can handle. The JLR electronic platform on these vehicles requires specific diagnostic tooling and knowledge of how the immobilizer communicates with the fob during enrollment. Locksmiths on forums are blunt about it: Euro luxury key work goes sideways fast when someone shows up without the right equipment and experience. We have done this job enough times to know exactly where it can go wrong and how to avoid it.

Question 2

How do I know you are not a scam locksmith?

Accepted Answer

Fair question, and Land Rover owners get targeted more than most. The luxury badge draws lowball-bait quotes that balloon on arrival, or mobile locksmiths who show up without the tooling to actually talk to JLR systems and end up either walking away or, worse, leaving the immobilizer in a worse state than they found it. Forum threads on Land Rover owner communities are full of those stories.

Legitimate signals: a firm price given before arrival, a straight answer about what diagnostic equipment is used on JLR vehicles, and reviews you can actually verify. We have over 100,000 followers across our YouTube and TikTok channels where you can watch the real work being done. No mystery. If a locksmith cannot explain their process or give you a number before they show up, that is the tell.

Question 3

Will the replacement key work exactly like the original?

Accepted Answer

Yes. A properly programmed replacement fob for the 2016 LR4 communicates with the vehicle's immobilizer the same way the factory key does. Engine starts, remote functions work, proximity entry behaves normally. We test every single function on site before the job is closed out, including the liftgate button, which is the one people forget to check and then call back about later.

We also confirm through the diagnostic port that the key is fully enrolled and that the immobilizer is reading it cleanly. You are not getting a key that works today and throws a warning next week.

Question 4

I lost both keys to my 2016 LR4. Can a new key be made without any existing key to start from?

Accepted Answer

Yes, all-keys-lost on the 2016 LR4 is a job we handle on site in Otay Mesa. No existing key needed.

The process runs through the OBD port using JLR-compatible diagnostic equipment. We generate a new key, enroll it to the immobilizer, and cut the emergency blade to your vehicle. Any previously registered fobs that are missing get cleared from the system so they cannot be used to start the car. The whole job typically runs about 30 to 45 minutes from the time I arrive, because the programming sequence has a timed cycle built into it on these vehicles. You are driving again well within the hour.

The dealer route for all-keys-lost usually means ordering to VIN, waiting for parts, and scheduling around their service calendar. That process takes days. We carry the blanks in the van.

Question 5

My 2016 LR4 shows a key warning on the dash but the fob battery is fine. What causes that?

Accepted Answer

A few things beyond battery condition can trigger a key-not-detected or key-not-found type warning on these. The fob's internal antenna loop can degrade after years of drops and pocket wear, which reduces how reliably the vehicle reads it, even with a good battery seated correctly. The battery contacts inside the fob are another common culprit: a slightly bent or corroded contact breaks the circuit intermittently.

On the vehicle side, the antenna modules that pick up the fob signal are located in the door handles and near the start button area. If one antenna has a wiring issue, you get inconsistent recognition that looks like a key problem but is not. That kind of fault usually shows a pattern, like always happening at one particular door or only on cold mornings.

If the warning is random and the fob is otherwise intact, I start with the contacts and the fob housing before assuming anything needs to be reprogrammed.

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