GMC rebadged the full-size Jimmy as the Yukon in 1992. The GMC Yukon is a full-sized SUV very similar to the Chevrolet Tahoe, both from General Motors. The new GMC Yukon was introduced for 1992, while Chevrolet continued calling their version the Blazer. Some model years of the GMC Yukon 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.