An effective heating, ventilation, and air conditioning system keep passengers comfortable, even on long trips. 1 Maximum trailer ratings are calculated assuming a standard equipped base vehicle plus driver. The weight of optional equipment, passengers, cargo, and required trailering equipment will reduce the maximum trailer weight. See the GMC Trailering Guide for details. 2 Always use safety belts and proper child restraints, even with air bags.
Children are safer when properly secured in a rear seat.
Vehicles shown with equipment from independent suppliers. See warranty page of this site for information about alterations and warranties.