2015 GMC Sierra 1500 Base

• Bumper, front chrome
• Bumper, rear chrome with rear bumper corner steps
• CornerStep, rear bumper
• Door handles, Black
• Glass, solar absorbing, tinted
• Grille surround, chrome
• Headlamps, halogen projector
• Lamps, cargo area, cab mounted with switch on center switch bank
• Mirrors, outside manual, Black
• Tailgate and bed rail protection caps, top
• Tailgate, locking utilizes same key as ignition and door (Deleted when (ZW9) pickup box delete is ordered.)
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door (Not included when (ZW9) pickup box delete is ordered.)
• Tire, spare P255/70R17 all-season, blackwall (Included and only available with (RBZ) P255/70R17 all-season, blackwall tires.)
• Tires, P255/70R17 all-season, blackwall
• Wheel, full-size spare, 17 x 7 (43.2 cm x 17.8 cm) aluminum (Included and only available with model K15703 or C15703 and (LV3) 4.3L EcoTec3 V6 engine.)
• Wheels, 17 x 8 (43.2 cm x 20.3 cm) painted steel

• Air conditioning, single-zone
• Assist handle, front passenger on A-pillar (Includes rear assist handles in the headliner on crew cab models.)
• 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, Graphite-colored rubberized-vinyl
• Instrumentation, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
• OnStar Delete
• 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. Vinyl has fixed lumbar and cloth has manually adjustable driver lumbar.
• SiriusXM Satellite Radio, delete
• Steering column, manual Tilt-Wheel

• Alternator, 150 amps
• Battery, heavy-duty 730 cold-cranking amps/70 Amp-hr, maintenance-free with rundown protection and retained accessory power
• Body, Pick Up Box
• Brakes, 4-wheel disc with DURALIFE rotors, 4-wheel antilock
• Cargo tie downs (4), movable upper
• Cooling, external engine oil cooler
• Engine, 4.3L EcoTec3 V6 with Active Fuel Management Direct Injection and Variable Valve Timing, includes aluminum block construction with FlexFuel capability, capable of running on unleaded or up to 85% ethanol (285 hp [212 kW]
• Exhaust, aluminized stainless-steel muffler and tailpipe
• Four wheel drive
• Frame, fully-boxed, hydroformed front section
• GVWR, 6700 lbs. (3039 kg)
• Rear axle, 3.42 ratio (Standard on 4WD V6 models. Available with (L83) 5.3L EcoTec3 V8 engine.)
• Recovery hooks, front, frame-mounted, black (Standard with 4WD models. Included with (9G3) Suspension Package, off-road, for base decor vehicles with 2WD models.) (Included with 4WD models.)
• Steering, Electric Power Steering (EPS) assist, rack-and-pinion
• Suspension Package, Handling/Trailering, heavy-duty includes 46 mm piston monotube shocks and 36mm front stabilizer bar
• Transfer case, with floor-mounted shifter (Included with 4WD models only.)
• Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking

• Air bags, dual-stage frontal airbags for driver and front passenger, seat-mounted side-impact airbags for driver and front outboard passenger, and head-curtain airbags for front and rear outboard seating positions; includes right-front airbag Passenger Sensing System (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.)
• 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
• Tire Pressure Monitoring System (does not apply to spare tire)

Model Highlights

The 2015 GMC Sierra is offered in Regular Cab, Double Cab (extended cab) and Crew Cab models, with two different bed lengths. Among those, power is provided by a choice between V6 and V8 powertrains. The base 4.3L V6 makes 285 horsepower and 305 pound-feet of torque, while the available EcoTec3 5.3L V8 makes 355 horsepower and 383 pound-feet. Both the 4.3L and 5.3L engines are certified to run on E85 (an 85-percent ethanol blend). Separately, at the top of the line, a 6.2L EcoTec3 V8 is positioned for those who regularly tow or haul the heaviest loads. This engine is only offered in Double Cab and Crew Cab models and makes 420 horsepower and 460 pound-feet of torque. With the V6 or 5.3 V8, the transmission is a 6-speed automatic, while the 6.2L V8 is paired with a new 8-speed automatic adapted from the Corvette. Both provide a tall cruising gear for good highway mileage (there are three axle ratios from which to choose). In addition, all three engines are aluminum-alloy, featuring variable valve timing and direct injection, as well as Active Fuel Management that allows them to run on four cylinders during light-load conditions like cruising and coasting. V6 models have fuel economy ratings of up to 18 mpg city, 24 highway with rear-wheel drive. The combination of three cab styles and two bed lengths can cover quite a range of wheelbases, which range from 119 inches all the way up to 153 inches. Front and rear Park Assist is available -- helpful for those who use their trucks in daily urban or suburban driving. Forward Collision Alert and Lane Departure Warning are among the active-safety features offered in the 2015 Sierra, and in both cases they might help avoid an accident from happening altogether. Inside, the Sierra has a traditional, upright instrument panel layout, with soft-touch materials and superb attention to detail. Knobs and buttons are large enough to use with gloves on, and there are two glovebox compartments. Double Cab models include rear-hinged front doors, with enough of a back seat for most passengers, while Crew Cab models offer a full, SUV-sized backseat. Depending on the trim level, the Sierra includes up to five USB outlets, four 12-volt outlets, an SD card slot, and an AC outlet -- with the available IntelliLink infotainment system wrapping in an 8-inch touch screen for compatibility with Bluetooth calling and streaming audio features, as well as Pandora streaming audio. The latest generation of OnStar is available, as well as 4G LTE WiFi capability, which turns the Sierra into a hotspot. Integral LED bed lighting, movable upper tie-downs, bumper-corner steps, and a damped, EZ Lift and Lower tailgate are just a few of the cargo-box innovations in the Sierra. An available spray-on bed liner helps protect it, too. Several specialty models cater to the needs of certain kinds of truck users. For instance, a Sierra All-Terrain model includes a look with less chrome, a painted grille, and serious off-road equipment such as monotube Rancho shocks, a transfer-case shield, hill descent control, front recovery hooks, and an automatic locking rear differential to help in mud or snow. Even at the base level, the Sierra includes a 40/20/40-split bench seat, power locks, cruise control, air conditioning, a tilt-adjustable steering column, and an audio system with USB ports, an SD card slot, and a 4.2-inch color display. At the top of the lineup, the Sierra Denali offers its own unique look, as well as a "loaded" array of features and comfort items. A chrome grille, special 20-inch chrome wheels and polished stainless steel exhaust -- plus body-color bumpers and special trim -- set a more elegant look on the outside. Inside the Denali gets real aluminum trim, bright door sills and upgraded trim. Meanwhile, the long list of feature upgrades for this model includes a navigation system with Intellilink, five USB ports, Bose audio, heated and cooled leather front seats, a heated steering wheel, a power-sliding rear window and front and rear park assist.