The new Mack Keystone™ brings together advanced active and passive safety features to help protect drivers, operators and everyone around the truck. From lane departure warning, automatic emergency braking and adaptive cruise control to side radar with pedestrian detection, frontal and side curtain airbags, rollover protection and automatic E911 calling, Keystone is built to raise the bar for vocational safety. Learn More: macktrucks.com/trucks/keystone Build yours: macktrucks.com/trucks/keystone/build #MackKeystone #MackTrucks #HeavyDutyTrucking