Question 1

Do I have to go to the Cadillac dealer to get a replacement key for a 1998 DeVille?

Accepted Answer

No. The 1998 DeVille takes a mechanical key, which means this is a cutting job, not a programming job. A mobile locksmith can decode your lock on site and cut a working key right there. No appointment, no tow, no waiting room. The dealer adds overhead and scheduling delays for a job that doesn't need any of it. We come to you in Westside Escondido and handle it in one visit.

Question 2

What kind of key does the 1998 Cadillac DeVille actually use?

Accepted Answer

It's a metal key, cut to fit the door and ignition locks on your specific car. No fob, no remote, no chip to program. The key works because the blade profile matches the lock tumblers -- that's the whole system. Getting a replacement means either pulling the key code from records or decoding one of the locks directly. Hardware store copies can work if the original key is present and unworn, but if you're starting from scratch with no key, decoding the lock and cutting fresh is the right call.

Question 3

How long does it take to get a replacement key made for a 1998 DeVille?

Accepted Answer

On site, the job typically runs well under an hour. Decoding the lock, cutting the key, and confirming it works in both the door and ignition is the whole process. No countdown timers, no module resets, no waiting on parts to arrive. Compare that to the dealer route, which on an older vehicle can mean scheduling delays and a tow if you have no working key. With EZ Car Keyz coming to you in Westside Escondido, the car is back in service the same visit.

Question 4

My 1998 DeVille key turns in the door but feels stiff. Should I be worried about the lock or the key?

Accepted Answer

Worth paying attention to. On a car this age, the lock cylinders can wear or develop some corrosion inside, especially in a climate like Escondido where the temperature swings between dry heat and occasional coastal moisture. A stiff feel usually means the wafers inside the cylinder are dragging. A little graphite-based lock lubricant is the first move -- skip oil-based sprays, they attract grit over time. If the key still binds after that, the cylinder itself may be worn to the point where it's reading the cuts loosely. That's also the moment to get a fresh key cut off the decoded lock rather than off the worn original, so the new cut matches the actual tumblers, not a blade that's been rounding off for 25 years.

Question 5

I found a duplicate key someone made years ago. Can I just use that?

Accepted Answer

Maybe, but test it carefully in both the door and the ignition before you rely on it. Old copies made from a worn key sometimes work fine in one lock and bind in another, because each cylinder wears slightly differently. If it turns cleanly in both and starts the car without hesitation, you're set. If it's at all sticky or the ignition feels like it's fighting you, don't force it. A worn or slightly off key can eventually damage the ignition wafers, and that turns a simple key job into a cylinder replacement. Better to have a fresh key cut to the actual lock.

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1998 Cadillac DevilleKey Replacement - Save vs Dealer in San Diego

No Appointments | No Waiting Rooms

1998 Cadillac DevilleKey Options