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. All were 2-door models through 1994.
General Motors redesigned the Tahoe and Yukon on the new GMT900 platform in late 2005 as a 2007 model. A hybrid version of the Yukon, which uses the shared GM/Chrysler Advanced Hybrid System 2, followed with the 2008 models. The GMT900 based Tahoe and Yukon exceeded initial sales expectations and continue to sell well despite a weakening market for large SUVs.
For 2012 the GMC Yukon underwent minor changes: the SLE and SLT grades were discontinued, in favor of appearance packages.