The Mitsubishi Challenger is a mid-size sport utility vehicle (SUV) produced by the Japanese manufacturer Mitsubishi Motors. Production began in Japan in 1996, and was available for most export markets by 1997, where it was known as the Montero Sport in North America, South America and the Philippines. Sales were discontinued, but we will continue to provide the keyless entry remote fob smart key programming instructions and/or programming information for this vehicle.