Segment-main talents throughout the variety encompass the best payload - 7,374 pounds - and the best traditional trailering score - 19,six hundred pounds. The most fifth-wheel trailering score is 23,two hundred pounds. Gas and Duramax diesel powertrains are presented, consisting of a bi-gasoline choice that pairs the fueloline engine with a compressed herbal fueloline gadget.
"Forget the belief that heavy-responsibility vehicles are fundamental equipment with a trailer hitch," stated DiSalle. "The 2015 Sierra HD vehicles can haul the heaviest load with unrivaled consolation and era that make the activity less complicated."
Additional new and improved functions for the 2015 GMC Sierra HD lineup:
- CornerStep rear bumper, EZ Lift and Lower tailgate, fashionable top tie-downs and different functions that make shipment dealing with less complicated
- Standard StabiliTrak with Trailer Sway Control on all fashions, consisting of 3500HD dually
- Integrated cruise manage, car grade braking and diesel exhaust braking (diesel fashions), for more using manage and decreased brake put on on grades
- Enhanced cooling airflow, which allows the Duramax faster diesel and 6.0L fueloline engine to higher keep complete strength, even below heavy hundreds and excessive ambient temperatures
- Latest-technology IntelliLink infotainment gadget, which gives loads of connectivity alternatives for gadgets of all sorts and to be had navigation
Sierra Denali HD information
The extraordinary Sierra Denali HD functions a signature Denali chrome grille, precise indoors ornamental trim, a sophisticated chrome steel exhaust outlet (fueloline fashions) and frame-shadeation the front and rear bumpers. Complementing the soft-contact device panel trim and aluminum trim are Denali-unique indoors information, consisting of script on the brilliant door sills and embossed into the the front seats.
Sierra Denali's excessive-tech indoors additionally functions an unique eight-inch customizable motive force show that could display applicable settings, audio and navigation facts withinside the device panel. Sierra Denali's fashionable eight-inch Color Touch navigation radio with Intellilink, placed above the middle console, serves as the primary hub for Bluetooth-related telephones and transportable gadgets related via 5 fashionable USB ports.
Other functions fashionable on Sierra Denali encompass projector-fashion headlamps with mild-emitting diode signature daylight jogging lighting, a Bose audio gadget, heated and cooled leather-based the front bucket seats, a heated steerage wheel and a strength sliding rear window with defogger.
GMC Sierra HD layout and outdoors functions
The new outdoors layout backs up its bold, superior styling with performance-improving functionality. Improved aerodynamics permit the vehicles to slide via the air with much less drag and decreased wind noise, even as the brand new grille layout helps improved engine-cooling overall performance. It complements performance and guarantees Sierra HD offers most suitable overall performance below the hardest conditions, including towing on a mountain grade.
New inlaid doorways, which healthy into recesses withinside the bodyside, assist lessen wind noise for a quieter cab, even as information consisting of just like the roof and tailgate spoiler have been tuned withinside the wind tunnel to easy airflow over the truck for decreased noise and advanced aerodynamic performance.
Like the 2014 Sierra 1500, a brand new double cab frame replaces the preceding prolonged cab. It functions longer, the front-hinged rear doorways with out of doors pull handles on the rear, supplying advanced get entry to in tight parking spaces. New structural B-pillars have been delivered to feature to a strong feel.
Unlike vehicles with rear-hinged doorways, Sierra's double cab layout permits rear passengers to go into and go out the automobile with the the front doorways final closed. Crew cabs characteristic resized doorways, too, consisting of longer rear doorways, which additionally make it less complicated to climb inside and outside of the rear seat.
Approximately sixty seven percentage of every cab is built with excessive-electricity and ultra-excessive-electricity steels, used withinside the A-pillars, B-pillars, rockers and roof rails, as nicely strategic sections at the indoors structure. Ultra-excessive-electricity metal is utilized in regions of the rocker panels and underbody to assist enhance overall performance in crashes.
Cargo container innovations
GMC Sierra HD fashions are to be had with 6'6" and eight' container lengths which might be more potent and greater durable, less complicated to apply and provide more shipment flexibility. The new CornerStep rear bumper - added on Sierra 1500 - is fashionable. It functions incorporated steps at every nook designed to deal with huge boots, with textured pads for sure-footed grip.
Sierra HD's packing containers additionally characteristic 4 incorporated shipment tie-down provisions constructed into the decrease corners and new, fashionable top tie-downs. The patented top hooks - every rated at 250 pounds - may be located in numerous places across the top mattress rails, supplying flexibility for securing hundreds of all shapes and sizes.
The EZ Lift-and-Lower tailgate is fashionable on SLE, SLT and Denali fashions. An inner torsion bar withinside the tailgate reduces the attempt to elevate and decrease it, even as a rotary damper permits for a managed and greater slow decreasing movement while opening. The tailgate is likewise without problems detachable with out equipment.
LED shipment container lights is fashionable on SLE, SLT and Denali fashions. Two LED lighting are hooked up below the container facet rails and are activated via way of means of a activate the device panel, supplying a mild supply while a tonneau cowl is established or a flashlight is not to be had.
The packing containers include a -tier loading layout and gives greater than 4 ft of loading area among the wheel houses, permitting fashionable 4' x eight' sheets of plywood to stack flatly at the container ground. There is likewise greater than 5 ft of load area among the container walls. An to be had, factory-established spray-in mattress liner affords safety for the container ground and walls.
The -tier layout permits clients to insert a platform to split gadgets for the duration of hauling or disguise valuables below, including strength equipment. It carries resting factors on the identical degree because the tops of the wheel houses - allowing the platform to efficaciously divide the container into top and decrease sections. There also are integrated provisions for shipment bulkheads to subdivide the container even further.
A huge variety of utility-improving add-ons presented via GMC sellers makes Sierra HD shipment packing containers greater functional. They encompass device packing containers, mattress liners, mattress mats, container nets, ladder racks and greater.
Intuitive, incorporated indoors
The 2015 Sierra HD lineup blessings from indoors added at the 2014 Sierra 1500. Premium substances, more interest to element and useful technology outline the passenger area, with soft-contact substances and to be had aluminum trim supplying top rate accents to an indoors designed to be a productive, smooth-to-use environment.
A new device cluster on all fashions functions six gauges with an to be had centrally placed, 4.2-inch-diagonal shadeation motive force facts middle, with automobile fame information, a experience pc and radio and navigation readouts.
A second, excessive-hooked up glove container with a flat ground joins the conventional container below. Each of GMC Sierra HD's doorways has garage crafted to preserve maximum beverage bins and different private gadgets. Along the middle stack and middle console are extra cupholders, discreet booths huge sufficient for maximum pc computers, and connectivity alternatives. Sierra HD is to be had with a 110-volt outlet, as much as 5 USB ports, 4 12-volt shops and an SD card slot.
Available IntelliLink connectivity makes use of a reconfigurable eight-inch shadeation contact display with an intuitive format and smooth-to-study icons that manage audio functions, a Pandora app, Bluetooth telecellsmartphone functions and to be had navigation with all-new map displays. Many of the gadget's functions may be managed via way of means of herbal-language voice command, permitting drivers to hold their eyes on the street and palms at the wheel.
Sierra HD's seats use dual-density foam designed to live snug over lengthy hours and hold to appearance remarkable after years of use. Leather-appointed and fabric seating are presented, and Sierra's new excessive-put on fabric is designed to remaining longer and withstand staining.
Heavy-responsibility basis for more talents
All Sierra HD fashions characteristic completely boxed body assemblies - 18 one-of-a-kind assemblies that accommodate greater than one hundred fifty viable automobile configurations throughout the lineup. Strategic upgrades guide more talents, consisting of:
- Segment-main most payload of 7,374 pounds
- Segment-main traditional towing score of as much as 19,six hundred pounds (with factory-established, body-hooked up container-tube hitch)
- Maximum fifth-wheel towing score of 23,two hundred pounds.
A short-lengthy arm/torsion bar the front suspension is used on all fashions and functions cast metal top manage palms and precision-machined forged iron decrease manage palms. Five one-of-a-kind torsion bar costs guide 5 one-of-a-kind the front gross axle weight scores to assist stabilize the variety of trim heights of numerous fashions below load - consisting of snow plows - even as improving appearance, dealing with, durability, tire put on and alignment.
At the rear, an asymmetrical leaf-spring layout minimizes axle hop and complements traction manage performance. A -degree leaf-spring layout is used on 2500HD fashions and three-degree layout is hired on 3500HD version. All fashions characteristic 3-inch-huge (seventy six mm) leaf springs.
The Z71 Off Road suspension is to be had on SLE and SLT fashions and consists of 35mm deflective disk twin-tube surprise absorbers, off-avenue jounce bumpers, 33mm the front stabilizer bar and a skid plate package deal.
Vehicle manage technology
GMC Sierra HD's superior automobile manage technology are designed to make difficult jobs less complicated and greater snug, even as additionally contributing to a secure using experience, specially while hauling shipment or towing a trailer.
StabiliTrak digital balance manage is fashionable on all single-rear-wheel fashions and - new for 2015 - 3500HD dual-rear-wheel fashions. It carries trailer sway manage and hill begin help. Trailer sway manage affords an delivered degree of self belief while towing a trailer via way of means of robotically intervening with braking and/or decreased engine strength to deliver the trailer below manage and hold it on its supposed path.
Proven powertrains
A Vortec 6.0L fueloline V-eight with variable valve timing is matched with the Hydra-Matic 6L90 six-velocity computerized transmission as the same old powertrain throughout the Sierra HD version variety. This aggregate is engineered to supply incredible overall performance and performance, specifically at low-rpms. It is rated at 360 horsepower (268 kW) and 380 lb-toes of torque (515 Nm) in 2500HD fashions and 322 horsepower (240 kW) and 380 lb-toes (515 Nm) in 3500HD.
The 6.0L engine is likewise to be had in a bi-gasoline version that functions unique hardened valves and valve seats that allows it to run on compressed herbal fueloline or gasoline. The CNG gasoline gadget is established via way of means of a GM provider and finished automobiles are introduced at once to the customer, making the acquisition method as seamless as ordering another choice.
The Duramax 6.6L diesel and Allison one thousand six-velocity computerized transmission powertrain aggregate is to be had on all 2500HD and 3500HD fashions, with highlights that encompass:
- 397 horsepower (296 kW) at 3,000 rpm
- 765 lb-toes of torque (1,037 Nm) at 1,six hundred rpm
- High-strain (30,000 psi/2,000 bar) Piezo-actuated gasoline gadget for more gasoline performance, advanced overall performance and decreased emissions
- Variable vane turbocharger that still acts as an exhaust brake to assist manage or sluggish the automobile's velocity
- Selective catalytic discount after-remedy gadget the usage of diesel exhaust fluid injection to offer the high-satisfactory usual diesel traits and overall performance - with quite a number approximately 5,000 miles (eight,000 km) among DEF refills
- Combustion and after-remedy optimized to offer approximately seven-hundred miles (1,one hundred twenty five km) among diesel particulate clear out out regenerations
- B20 biodiesel functionality for an opportunity fueling choice.
The Allison one thousand functions motive force shift manage with faucet up/faucet down transferring and a patented improved idle mode cab warm-up characteristic. Also, the tow/haul mode reduces shift biking for higher manage and advanced cooling while towing or hauling heavy hundreds.
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