X31 Off-Road Package with hill descent control, skid plates, heavy-duty air filter, X31 hard badge, rear wheelhouse liners, 18" 6-spoke machined aluminum wheels with Dark Grey Metallic accents, 265/65R18SL all-terrain, blackwall tires, Autotrac electronic 2-speed transfer case. and Dual exhaust
Spray-on bedliner
All-weather floor liners
Front and rear park assist
Rear cross traffic braking
Rear pedestrian alert
Trailer camera provisions
Trailer side blind zone alert
HD Surround Vision
Perimeter lighting
Recovery hooks on 2WD models
Off-Road suspension
Hill Descent Control
Skid plates
Heavy-duty air filter
X31 hard badge
Rear wheelhouse liners
18" 6-spoke machined aluminum wheels with Dark Grey Metallic accents
265/65R18SL all-terrain, blackwall tires
Autotrac electronic 2-speed transfer case
Dual exhaust
9.76" rear axle with 3.42 ratio
Enhanced cooling radiator
Revised shock tuning for increased control
Heavier duty rear springs
Increased RGAWR
220-amp alternator
Trailer brake controller
Roof emergency light provisions
220-amp alternator
Heavy-duty air filter
Skid plates
Heavy duty front springs
All-weather floor liner
Front and rear Black molded splash guards
Universal Home Remote
Power sliding rear window
Trailer brake controller
Hitch view with with image adjustment, pan/zoom/tilt
In-vehicle trailering app
Adaptive cruise control
Rear wheelhouse liners
Duramax 3.0L Turbo-Diesel I6 with 305 hp @ 3750 rpm and 495 lb-ft of torque @ 2750 rpm
220-amp alternator
Engine block heater
10-speed automatic transmission
EcoTec3 5.3L V8 engine with Active Fuel Management, direct injection, variable valve timing, aluminum block construction, 355 hp @ 5600 rpm, 383 lb-ft of torque @ 4100 rpm and Dynamic Fuel Management
Auxiliary external transmission oil cooler
10-speed automatic transmission
Certain vehicles may be forced to include (YK9) Not Equipped with Dynamic Fuel Management. See dealer for details.
Set of 4 sensors
Sensor functionality requires In-Vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
Red Brembo 6-piston front brake calipers with larger than factory stock pads and rotors (GMC logo on front calipers and rear calipers are color matched Red)
One wired camera and hardware, shipped loose for dealer or aftermarket installation, additional camera available as a GM Accessory (wire length is 59', [18m])
Allows a dealer in states that require California emissions - California, Connecticut, Delaware, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island or Washington - to order Federal emissions for a vehicle that will be registered in a state that has Federal emission requirements). Do not use for vehicles that will be registered in California, Connecticut, Delaware, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island or Washington. Not available in Maine or Vermont.
For vehicles ordered by dealers in Federal emission states with (YF5) or (NE1) emissions - Not required for vehicles being shipped to California, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont or Washington)
Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington state requirements.
For dealers ordering vehicles in (YF5) or (NE1) emission states - California, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington). Allows a California dealer (YF5 emissions) to order (NE1) emissions with (NB9) emissions override code for registration in (NE1) states
or, a Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington dealer (NE1 emissions) to order (YF5) emissions with (NB9) emissions override code for registration in California.