The standard features of the GMC Yukon Commercial Fleet include Vortec 5.3L V-8 320HP engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), curtain 1st, 2nd and 3rd row overhead airbag, airbag occupancy sensor, air conditioning, 17" steel wheels, cruise control, ABS and driveline traction control, four-wheel drive, and a StabiliTrak w/Proactive Roll Avoidance stability control.