The Toyota Avalon is a full-size car produced by Toyota in the United States, and is the flagship sedan of Toyota in the United States, Canada, Puerto Rico and the Middle East. Early model years of the Toyota Avalon have keyless entry remote fob smart keys that are onboard programmable, which means a person can program the keyless entry remote fob smart key with no special equipment other than the keyless entry remote fob smart key programming instructions. Newer model years are not on-board programmable and require special equipment in order to program the keyless entry remote fob smart key.