2015 GMC Sierra 3500HD available WiFi 4WD Automatic

• Bumper, front chrome
• Door handles, Black
• Glass, solar absorbing, tinted
• Grille, chrome surround
• Headlamps, halogen projector
• Lamps, cargo area, cab mounted with switch on center switch bank
• Lamps, Smoked Amber roof marker (Not available with (YF5) California state emissions requirements.)
• Mirrors, outside high-visibility vertical camper-style, Black with manual folding and extension and lower convex spotter glass
• Tires, LT235/80R17E all-season highway
• Wheel trim, painted trim skins and painted center caps
• Wheels, 17 (43.2 cm) painted steel

• Air conditioning, single-zone
• Assist handle, front passenger and driver on A-pillars
• Audio system feature, 4-speaker system
• Audio system, 4.2 Diagonal Color Display, AM/FM stereo with USB ports, auxiliary jack and SD card slot
• Cruise control, steering wheel-mounted
• Door locks, power
• Driver Information Center 3.5-inch diagonal monochromatic display, provides warning messages and basic vehicle information
• Floor covering, Black rubberized vinyl
• Seat trim, Vinyl
• Seats, front 40/20/40 split-bench 3-passenger, driver and front passenger recline with outboard head restraints and center fold-down armrest with storage. (Requires (H2Q) vinyl interior trim or (H2R) cloth, interior trim.)
• Steering column, manual Tilt-Wheel
• Steering wheel

• Air cleaner, high-capacity
• Alternator, 150 amps
• Back-up alarm calibration This calibration will allow installation of an aftermarket back up alarm.
• Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power
• Body, Chassis Cab
• Cooling, auxiliary external transmission oil cooler
• Cooling, external engine oil cooler
• Differential, heavy-duty locking rear
• Engine, Vortec 6.0L Variable Valve Timing V8 SFI (322 hp [240.1 kW]
• Exhaust, aluminized stainless-steel muffler and tailpipe
• Four wheel drive
• Frame, fully-boxed, hydroformed front section
• Fuel tank, front and rear, 63.5 gallon
• GVWR, 13,200 lbs. (5988 kg)
• Rear axle, 4.10 ratio (Requires (L96) Vortec 6.0L V8 SFI engine.)
• Recovery hooks, front, frame-mounted, black
• Steering, Recirculating Ball
• Suspension Package, Standard includes 51mm twin tube shock absorbers and 33mm front stabilizer bar
• Transfer case, with floor-mounted shifter (Included with 4WD models only.)
• Transmission, 6-speed automatic, heavy-duty electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Requires (L96) Vortec 6.0L V8 SFI engine.)

• Air bag deactivation switch, frontal passenger-side
• Air bags, frontal, driver and right front passenger, single stage (Always use safety belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
• Brakes, 4-wheel antilock, 4-wheel disc with dual rear wheel with DuraLife brake rotors
• Daytime Running Lamps with automatic exterior lamp control
• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist

Model Highlights

The GMC Sierra comes in many different configurations. 2500 versions come in one of three body styles, regular cab with a long bed, crew cab with a short bed and crew cab with a long bed. 3500 body styles mirror those options but also offer the option of two extra wheels on the rear axles, useful for towing extra heavy loads. Beyond that, both 2500 and 3500 are offered with either a 6.0L V8 making 360 horsepower or a 6.6L V8 turbo diesel making 397 horsepower and 765 foot pounds of torque. All 2500 and 3500 HD Sierras come with the option of having 4-wheel drive. Trim levels for the 2500 and 3500 come in three different flavors. Work truck, SLE and SLT, with SLT trim only available on crew cab versions. In standard work truck trim, the vehicle is fairly basic with automatic door locks, air conditioning and cruise control. SLE versions add OnStar, heated exterior mirrors, a leather wrapped steering wheel, power windows and a CD/MP3 player. The SLT trim includes power seats, steering wheel mounted audio controls, a remote starter, dual-zone climate control, a Bose stereo, Bluetooth connectivity and power folding mirrors. Denali versions come in only one trim level and in crew cab and short-bed. Regardless of bed length, the Sierra HD Denali is packed with luxury goodies. Standard features on the Denali include perforated leather seating surfaces, heated and cooled 12-way power adjustable front seats, a premium sound system with a 9-month subscription to Sirius XM satellite radio, a heated, leather wrapped steering wheel, auto-dimming rearview mirror with automatic garage door opener, power adjustable pedals and rear parking assist. The Denali also comes with a unique grill and other selected trim. Options across the Sierra HD range tend to be fairly utilitarian, with items such as a longer axle ratio, dual alternators and off road suspension sprinkled across the checklist of options. However more common items such as a rear seat entertainment system, a navigation system and a sunroof are also available on the Sierra HD.