The standard features of the Chevrolet Silverado 1500 LS include EcoTec3 4.3L V-6 285hp engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st row overhead airbag, airbag occupancy sensor, air conditioning, 17" styled steel wheels, cruise control, ABS and driveline traction control, StabiliTrak w/Proactive Roll Avoidance electronic stability.