Buick Century Key Replacement Guide

Last updated: September 2026 · Verified against OEM part numbers

Compatible keys for Buick Century

Before you order

• Match the year range — Buick changed key systems across model years. Check your registration year.
• Check your current key — the OEM number printed on your key matches the table above.
• Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

What frequency is the Buick Century key?

The Buick Century key operates on 315 MHz. Frequency is fixed in the key hardware and cannot be reprogrammed — a key bought on the wrong frequency will not lock, unlock or start the car.

Which key fits my Buick Century?

The Buick Century (2001-2005) uses the L2C0007T 315MHz 3+1 Button Remote Key for Chevrolet GMC (SKU PCK-CV-2137). Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Buick Century keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a Buick Century key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

Related: All Buick keys · All guides · Key Finder

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