1997 Buick Century
Key Replacement - Save vs Dealer in San Diego
Licensed & Insured | Mobile Key Experts

With over 1,000 verified Google reviews and every major industry certification, EZ Car Keyz is the locksmith trusted by families, businesses, and fleet managers throughout the area.

Certified pro service, 10% off
1997 Buick Century
Key Options
Dealer-grade key for a fair, honest price
Licensed Buick Key Pro vs Dealership
Licensed, certified, and reviewed - compare the credentials
1997 Buick Century Remote Replacement - Fast, Affordable & Professional
When a 1997 Buick Century key is done wrong, it doesn't just "kind of work." It fails. Buick's theft-deterrent system is particular about chip types. On older PK3 models, a wrong transponder triggers a solid security light and the PCM cuts fuel. On newer smart key models, a cheap aftermarket fob might lock and unlock fine but force you to use the backup pocket every time you start.
A set designer at the warehouse district in Ramona had a key made by another locksmith for his Century that stopped working after about five days. It would start cold, but after driving and shutting off, the next start would fail with a security light. Classic symptom of a transponder that passed the initial learn but fails the deeper verification.
I used my IM608 to read the existing key data, confirmed it was the wrong chip variant, and programmed a new key with the correct transponder. His remote, FCC ID ABO0204T, also had a weak CR2032 battery contributing to intermittent remote failures on top of the chip issue.
The replacement has been working for months and cost him $95. The dealer would have charged $200. On Buick, the chip type matters more than most people realize because the BCM is less forgiving of close matches.
Save vs the Dealer on Your Buick Century Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
Buick Century Rapid Response, Done Right
Rapid response in the field
Why Buick Customers Trust Us
Licensed, certified, and proven
“My Chevy key snapped while I was running errands in North Oxnard. He removed the broken piece from the ignition, cut a new blade, programmed the transponder, and tested everything thoroughly. The whole job was smooth and professional. Best automotive locksmith I have used.”
“My car keys were stolen on a cold evening and Nick drove all the way out to Santa Barbara. He got into my car, made a new key, and charged $100 less than another company. Friendly, skilled, trustworthy, and genuinely caring. Nick is a hero.”
“Tim is a hero. He programmed a master proximity key for a newer Volkswagen that multiple locksmiths refused to touch. He spent hours until late at night making sure every function worked perfectly. The skill level here is incredible.”
Buick Century Key Service Areas
Licensed and insured in every city

Licensed and insured across all service areas





