The Jaguar XK series (XK, XK8 and XKR) is a series of grand tourer cars produced by British car maker Jaguar Cars since 1996. Production of the XK ended in July 2014 without a replacement model. Some model years of the Jaguar XK 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 of the Jaguar XK are not onboard programmable and require special equipment in order to program the keyless entry remote fob smart key.