The Toyota 4Runner is a mid-size sport utility vehicle (SUV) produced by the Japanese manufacturer Toyota and sold throughout the world from 1984 to present. Some model years of the Toyota 4Runner 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. However, other model years are not on-board programmable and require special equipment in order to program the keyless entry remote fob smart key.