On trucks under 8,600 pounds GVWR, the passenger airbag can be deactivated when a rear-facing child safety seat is installed. Low-speed steering effort is reduced this year, and a refined transmission fluid pump results in smoother shifts. An alternative fuel version of the Vortec 5700 is available, but only on a specific model. K1500s get a tighter turning radius, and three new colors debut. The third door option will be more widely available.