Buick Century is the model name used by the Buick division of General Motors for a line of upscale performance cars from 1936 to 1942 and 1954 to 1958, and from 1973 to 2005 for a mid-size car. When it was first introduced, there was no need for keyless entry remote fob smart key programming instructions, as the keyless entry remote fob smart key option was not yet available. The Century was sold as the Buick Regal in Japan, as Toyota owns the right to the name Century. Although the Buick Century is no longer produced, ProgramYourRemote.com will continue to provide the keyless entry remote fob smart key programming instructions and information.