Scores 26 Highway MPG and 22 City MPG! This GMC Sierra 1500 Limited delivers a Diesel I6 3.0L/183 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. Includes (N10) dual exhaust., TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking, TRAILER BRAKE CONTROLLER, INTEGRATED.*This GMC Sierra 1500 Limited Comes Equipped with These Options *ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (277 hp [206.6 kW] @ 3750 rpm, 460 lb-ft of torque [623.7 N-m] @ 1500 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.), ELEVATION PREFERRED EQUIPMENT GROUP includes standard equipment, Windows, power rear, express down, Windows, power front, drivers express up/down, Window, power front, passenger express down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheelhouse liners, rear, USB ports, dual, charge-only (2nd row), USB ports, 2 (first row) located on instrument panel, Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Standard on 2WD models equipped with (L84) 5.3L EcoTec3 V8 engine. Standard on all models with (L3B) 2.7L Turbo engine. Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.).