The Jeep Grand Cherokee is a mid-size SUV produced by the Jeep division of American manufacturer Chrysler. While some other SUVs were manufactured with body-on-frame construction, the Jeep Grand Cherokee has always used a unibody chassis. Some model years of the Jeep Grand Cherokee 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 Grand Cherokee are not onboard programmable and require special equipment in order to program the keyless entry remote fob smart key.