Options:

　　Duramax Plus Package

　　Includes (L5p) Duramax 6.6L Turbo-Diesel V8 Engine

　　(Dqs) Outside Memory Equipped Heated Power-Adjustable Vertical Trailering Mirrors

　　(Mw7) Allison 1000 6-Speed Automatic Transmission

　　(Uqa) Bose Premium Audio System

　　(Ud5) Front And Rear Park Assist And (Io6) 8 Diagonal Color Touch Screen Navigation With Gmc Infotainment|Mirrors

　　Chrome

　　Outside Heated Power-Adjustable Vertical Trailering

　　Memory-Equipped

　　Upper Glass

　　Power-Folding And Manual Extending;

　　Includes Integrated Turn Signal Indicators

　　Consisting Of 51 Square Inch Flat Mirror Surface Positioned Over A 24.5 Square Inch Convex Mirror Surface With A Common Head And Lower Convex Spotter Glass (Convex Glass Is Not Heated And Not Power-Adjustable) And Addition Of Auxiliary Cargo Lamp For Backing Up (Helps To See Trailer When Backing Up With A Trailer) And Amber Auxiliary Clearance Lamp|Engine Block Heater|Suspension Package

　　Handling/Trailering

　　Heavy-Duty

　　Includes 51Mm Twin Tube Shock Absorbers And 33Mm Front Stabilizer Bar (Std)|Engine

　　Duramax 6.6L Turbo-Diesel V8

　　B20-Diesel Compatible

　　(445 Hp [332 Kw] @ 2800 Rpm

　　910 Lb-Ft Of Torque [1220 Nm] @ 1600 Rpm) Includes Capped Fuel Fill

　　(K40) Exhaust Brake

　　And (K05) Engine Block Heater.|Rear Axle

　　3.73 Ratio|Slt Preferred Equipment Group

　　Includes Standard Equipment|License Plate Kit

　　Front|Transmission

　　Allison 1000 6-Speed Automatic

　　Electronically Controlled

　　With Overdrive

　　Electronic Engine Grade Braking And Tow/Haul Mode|Gvwr

　　10 000 Lbs. (4536 Kg)|Tires

　　Lt265/70R18e All-Terrain

　　Blackwall|Wheels

　　18 (45.7 Cm) Chromed Aluminum

　　Includes 18 X 8 (45.7 Cm X 20.3 Cm) Steel Spare Wheel. (Std)|Paint

　　Solid|Seats

　　Front 40/20/40 Leather-Appointed Split-Bench

　　3-Passenger

　　With (Ka1) Heated Seat Cushions And Seat Backs. Includes 10-Way Power Driver And Front Passenger Seat Adjusters

　　Including Driver/Front Passenger Power Recline

　　Driver/Front Passenger Power Lumbar

　　2- Position Driver Memory And Adjustable Outboard Head Restraints. (Std)|Wheel

　　18 X 8 (45.7 Cm X 20.3 Cm) Full-Size

　　Steel Spare.|Front And Rear Park Assist

　　Ultrasonic|Jet Black

　　Leather-Appointed Front Seat Trim|Audio System

　　8 Diagonal Color Touch Screen Navigation With Gmc Infotainment System

　　Am/Fm/Siriusxm

　　Hd Radio

　　With Usb Ports

　　Auxiliary Jack

　　Bluetooth Streaming Audio For Music And Most Phones

　　Pandora Internet Radio And Voice-Activated Technology For Radio And Phone|Bose Sound With 6 Speaker System|Assist Steps Not Desired Or Alternate Step Desired|Onyx Black|Exhaust Brake|Mirror Caps

　　Body-Color (Included And Only Available With (Gat) All Terrain Hd Package.) (Included And Only Available With (Gat) All Terrain Package And Mirror Caps Will Be Black.)|Remote Locking Tailgate|Mirror Caps

　　Chrome|Capless Fuel Fill (Requires Gas Engine And (E63) Pickup Box.)|Glass

　　Deep-Tinted|Cornerstep

　　Rear Bumper (Requires (E63) Pickup Box.)|Led Lighting

　　Cargo Box With Switch On Center Switch Bank (Deleted When (Zw9) Pickup Box Delete Is Ordered.) (Deleted With (Zw9) Pickup Box Delete.)|Headlamps

　　High Intensity Discharge (Hid) Projector-Beam With Gmc Signature Led Lighting|Bumper

　　Rear Chrome With Bumper Cornersteps (Requires (E63) Pickup Box.)|Wheels

　　18 (45.7 Cm) Chromed Aluminum Includes 18 X 8 (45.7 Cm X 20.3 Cm) Steel Spare Wheel. Spare Not Included With (Zw9) Pickup Box Delete Unless A Spare Tire Is Ordered. (Upgradeable To (Pyu) 20 (50.8 Cm) Polished Aluminum Wheels.)|Wheelhouse Liners

　　Rear (Requires Crew Cab Or Double Cab Model. Deleted With (Zw9) Pickup Box Delete.)|Mirrors

　　Outside Chrome Cap

　　Heated Power-Adjustable

　　Power-Folding And Driver-Side Auto-Dimming With Integrated Turn Signal Indicators And Puddle Lamps (Includes Driver's Side Spotter Mirror)|Tailgate And Bed Rail Protection Caps

　　Top|Bumper

　　Front Chrome|Door Handles

　　Chrome|Tailgate

　　Ez-Lift And Lower (Deleted With (Zw9) Pickup Box Delete.)|Moldings

　　Bodyside

　　Chrome|Lamps

　　Cargo Area

　　Cab Mounted With Switch On Center Switch Bank|Grille Surround

　　Chrome|Tire Carrier Lock Keyed Cylinder Lock That Utilizes Same Key As Ignition And Door (Not Included When (Zw9) Pickup Box Delete Or (9J4) Rear Bumper Delete Is Ordered.)|4X4 Chrome Badge (Included And Only Available With 4X4 Models.)|Fog Lamps

　　Front

　　Halogen|Remote Keyless Entry|Seats

　　Front 40/20/40 Leather-Appointed Split-Bench

　　3-Passenger With (Ka1) Heated Seat Cushions And Seat Backs. Includes 10-Way Power Driver And Front Passenger Seat Adjusters

　　Including Driver/Front Passenger Power Recline

　　Driver/Front Passenger Power Lumbar

　　2- Position Driver Memory And Adjustable Outboard Head Restraints. (Upgradeable To (An3) Front Full-Feature Leather-Appointed Bucket Seats.)|Pedals

　　Power-Adjustable For Crew Cab And Double Cab Models|Bluetooth For Phone

　　Personal Cell Phone Connectivity To Vehicle Audio System|Universal Home Remote (Not Included When (Trw) Provision For Cab Roof-Mounted Lamp Or (Vyu) Snow Plow Prep Package Are Ordered.)|Mirror

　　Inside Rearview Auto-Dimming|Audio System

　　8 Diagonal Color Touch Screen With Gmc Infotainment System

　　Am/Fm/Siriusxm

　　Hd Radio With Usb Ports

　　Auxiliary Jack

　　Bluetooth Streaming Audio For Music And Most Phones

　　Pandora Internet Radio And Voice-Activated Technology For Radio And Phone (Upgradeable To (Io6) 8 Diagonal Color Touch Audio System With Navigation And Gmc Infotainment System.)|Floor Mats

　　Color-Keyed Carpeted First And Second Row|Remote Vehicle Starter System|Instrumentation

　　6-Gauge Cluster Featuring Speedometer

　　Fuel Level

　　Engine Temperature

　　Tachometer

　　Voltage And Oil Pressure|Seat

　　Rear 60/40 Folding Bench (Folds Up)

　　3-Passenger (Includes Child Seat Top Tether Anchor)|Theft-Deterrent System

　　Unauthorized Entry|Power Outlet

　　110-Volt Ac|Driver Information Center

　　4.2-Inch Diagonal Color Display Includes Driver Personalization

　　Warning Messages And Vehicle Information|Steering Wheel Audio Controls|Floor Covering

　　Color-Keyed Carpeting With Rubberized Vinyl Floor Mats|Assist Handle

　　Front Passenger And Driver On A-Pillars|Steering Column

　　Manual Tilt-Wheel And Telescoping|Single-Slot Cd/Mp3 Player (On Crew Cab Replaced By (U42) Rear Seat Dvd/Blu-Ray Entertainment Package When (U42) Is Ordered.)|Cruise Control

　　Steering Wheel-Mounted|Visors

　　Driver And Front Passenger Illuminated Vanity Mirrors|Door Locks

　　Power|Gmc 4G Lte And Available Built-In Wi-Fi Hotspot Offers A Fast And Reliable Internet Connection For Up To 7 Devices

　　Includes Data Trial For 1 Month Or 3Gb (Whichever Comes First); Effective With Retail Sales Starting 5/1/2018. (Available Wi-Fi Requires Compatible Mobile Device

　　Active Onstar Service And Data Plan. Data Plans Provided By At&T. Visit Onstar.Com For Details And System Limitations.)|Seating

　　Heated Driver And Front Passenger Only Available On Crew Cab And Double Cab Models.|Siriusxm Satellite Radio Is Standard On Nearly All 2018 Gm Models. Enjoy A 3-Month All Access Trial Subscription With Over 150 Channels Including Commercial-Free Music

　　Plus Sports

　　News And Entertainment. Plus Listening On The App And Online Is Included

　　So You'll Hear The Best Siriusxm Has To Offer

　　Anywhere Life Takes You. Welcome To The World Of Siriusxm. (If You Decide To Continue Service After Your Trial

　　The Subscription Plan You Choose Will Automatically Renew Thereafter And You Will Be Charged According To Your Chosen Payment Method At Then-Current Rates. Fees And Taxes Apply. To Cancel You Must Call Us At 1-. See Our Customer Agreement For Complete Terms At All Fees And Programming Subject To Change.)|Steering Wheel

　　Leather-Wrapped With Audio And Cruise Controls|Air Conditioning

　　Dual-Zone Automatic Climate Control Only Available On Crew Cab And Double Cab Models.|Windows

　　Power With Driver Express Up And Down And Express Down On All Other Windows|Radio

　　Hd|Defogger

　　Rear-Window Electric|6-Speaker Audio System