Question 1

Are you licensed and insured to work on Hyundai vehicles?

Accepted Answer

Yes. EZ Car Keyz is a California BSIS licensed locksmith company (LCO#6792), fully insured, and NASTF Vehicle Security Professional certified. Working on a 2003 Tiburon remote head key means cutting the blade accurately and programming both the transponder and the remote functions using the right equipment. Not every locksmith carries blanks for this specific key or has the tools to handle the immobilizer enrollment side of the job. We operate under a real business name, verifiable reviews, and over eight years of hands-on experience. 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

Scam locksmiths are a real problem. The pattern is always the same: a low number over the phone, then a completely different number once they have your car open. Key emergencies are stressful, and that stress gets used against people. One common version is a quote that doesn't include "programming fees" until after the fact, and owners end up paying three or four times what they expected.

EZ Car Keyz has over 100,000 followers across YouTube and TikTok where you can watch us do this exact work on camera. We give you a firm price before we show up. We arrive in a marked vehicle. The price you hear on the phone is the price you pay.

Question 3

Will the replacement key work exactly like my original?

Accepted Answer

Yes. On a 2003 Tiburon remote head key, there are two things that have to work: the transponder enrollment so the immobilizer releases and the car actually starts, and the remote functions so the doors respond. We handle both, and we test every function before we close up and leave. The blade gets cut to your vehicle, not to a generic spec. We don't hand you a key and drive off. If something isn't right, we find out while we're still standing there.

Question 4

My 2003 Tiburon starts fine but the remote buttons on the key do nothing. Do I need a whole new key?

Accepted Answer

Not necessarily. On a remote head key, the transponder and the remote transmitter are in the same unit but they operate independently. If the car starts normally, the transponder side is fine. Dead or weak remote buttons usually point to one of three things: the battery in the key head needs replacement, the remote lost its sync with the receiver and needs to be re-paired, or the button contacts inside the shell have worn out. Start with the battery. If fresh power doesn't bring it back, a re-sync procedure can often restore function without replacing the whole key. If the shell itself is cracked or the contacts are gone, a new shell with the original internals transferred over might be all you need. A full replacement and reprogram is the last step, not the first.

Question 5

I bought a replacement remote head key online for my 2003 Tiburon. Can I program it myself?

Accepted Answer

The remote sync on some older vehicles has an onboard procedure. Whether that applies to your specific Tiburon setup depends on the configuration, and forum results on this are genuinely mixed. The transponder side, though, is a different matter entirely. Getting the immobilizer to accept a new chip requires programming equipment. If you try the key and the car cranks but won't run, that's the transponder not being recognized. Bring the key you bought. If it's the right blank, I can work with it and you save on the part. If it's the wrong one, I'll have the right blank in the van.

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