The Nissan Titan introduced in 2004, is a full-size pickup truck produced for the North American market by Nissan. Some models of the Nissan Titan have keyless entry remote fob smart keys that are onboard programmable, meaning a person can program the keyless entry remote fob smart key with no special equipment, while some other models are not onboard programmable and require special equipment in order to program the keyless entry remote fob smart key.