GMC’s Yukon full-size sport utility vehicle is closely related to the Chevrolet Tahoe and is based on General Motors’ full-size pickup trucks. The Yukon and Tahoe were redesigned for the 2000 model year and compete against such full-size SUVs as the Ford Expedition, Lincoln Navigator, and Toyota’s Land Cruiser and Sequoia., , GMC also sells a larger version, called the Yukon XL, which is comparable to the Chevrolet Suburban. The half-ton Yukons come with either rear-wheel drive or Autotrac four-wheel drive that includes Low-range gearing., , For the 2004 model year, the Yukon gains Hydroboost braking. This feature provides greater stopping power with less pedal effort in high-deceleration halts, and it is said to improve ABS performance. A tire-pressure monitor joins the standard equipment list, and the right front passenger gets a seat belt reminder. For the first time, a sunroof and DVD entertainment system for the rear seat can be installed on the same vehicle. New 17-inch six-spoke premium aluminum wheels are available on Yukons with the SLT option group., , A luxury Denali edition is equipped with permanently engaged all-wheel drive, leather upholstery and specific front-end styling. Standard Yukon Denali equipment includes a monochrome exterior color scheme, a nine-speaker Bose audio system with an in-dash six-CD changer, GM’s OnStar communication system, XM Satellite Radio and 17-inch tires. GM’s StabiliTrak electronic stability system is optional on the regular Yukon and standard on the Denali.