Delivers 27 Highway MPG and 23 City MPG! Carfax One-Owner Vehicle. This GMC Sierra 1500 delivers a Turbocharged Diesel I6 3.0L/ engine powering this Automatic transmission. X31 OFF-ROAD PACKAGE includes Off-Road suspension, (JHD) Hill Descent Control, (NZZ) skid plates, (K47) heavy-duty air filter and X31 hard badge Includes (NQH) 2-speed transfer case, (XCK) 265/65R18SL all-terrain, blackwall tires and (N10) dual exhaust., TRANSMISSION, 10-SPEED AUTOMATIC, (COLUMN SHIFTER) ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking, TRANSFER CASE, TWO-SPEED, ELECTRONIC AUTOTRAC with push button control.*This GMC Sierra 1500 Comes Equipped with These Options *SUSPENSION, OFF-ROAD, STERLING METALLIC, STEERING COLUMN LOCK, ELECTRICAL (Beginning with start of production through July 31, 2023, vehicles will be forced to include (R7N) Not Equipped with Steering Column Lock, which removes Steering Column Lock. See dealer for details. Vehicles built on or after July 31, 2023 will include (N06) Steering Column Lock.), SLT PREFERRED EQUIPMENT GROUP Includes Standard Equipment, SEATS, FRONT 40/20/40 SPLIT-BENCH with covered armrest storage and under-seat storage (lockable) (STD), REAR AXLE, 3.23 RATIO, PROGRADE TRAILERING SYSTEM includes (PZ8) Hitch View, (JL1) trailer brake controller and (UET) In-Vehicle Trailering App, IN-VEHICLE TRAILERING APP System, includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module, HITCH VIEW with image adjustment, Pan/Zoom/Tilt, HILL DESCENT CONTROL.