The Chevrolet Equinox is a mid-size crossover SUV from Chevrolet, introduced in 2004 for the 2005 model year. It replaces the Chevrolet Tracker in the United States and Canada. The Chevrolet Equinox is the first crossover SUV from the marque. Although its dimensions are mid-sized, GM calls the Chevrolet Equinox a compact SUV. It comes standard with a front-wheel drive layout, with optional all-wheel drive. Some model years have keyless entry remote key fobs that are onboard programmable, which means a person can program the keyless entry remote key fob with no special equipment other than the keyless entry remote key fob programming instructions. While other model years are not on-board programmable and require special equipment in order to program the keyless entry remote key fob.