2015 GMC Sierra

After a complete redesign in 2014 that helped it earn AJAC’s Best New Pickup award, a Consumers Guide® Automotive Best Buy Award and Kelley Blue Book’s 5-Year Cost to Own Award, the Sierra 1500 added an all-new eight-speed automatic transmission to its powertrain roster, enhancing efficiency and refinement while maintaining capability. It is included on models equipped with the EcoTec3 6.2L V-8 engine

Sierra’s new eight-speed automatic helps the pickup retain its 5,443 kg (12,000-pound) maximum trailering rating under newly adapted SAE J2807 Recommended Practices. Additionally, the entire line-up is available with a number of features engineered for serious towing, including the available NHT max trailering package, which features a 9.76-inch rear axle, heavy-duty rear springs, revised shock tuning, enhanced cooling and an integrated trailer brake controller to optimize capability and comfort when trailering.

The Sierra also entered 2015 with technologies that enhance connectivity, including Text Messaging Alerts, Siri Eyes Free and new, available OnStar with 4G LTE with a built-in Wi-Fi hotspot (standard on SLE, SLT and Denali). It provides a mobile hub for drivers and passengers to stay connected. The hotspot is on whenever the vehicle is on and comes with a three-month/three-gigabyte data trial.

Sierra line up

The 2015 Sierra 1500 range includes regular cab and two four-door cabs – the double cab and crew cab – body styles, all offered with 4WD. Models and trim levels the standard model, SLE, SLT and Denali (regular cab offered only in standard and SLE trims). The off-road-inspired All Terrain package is offered on double cab and crew cab models with SLE or SLT trim and include the Z71 Off Road suspension.

Sierra design and exterior features

Sierra’s exterior design is refined and aerodynamic, helping reduce wind noise in the cabin and enhancing efficiency on the highway. Inlaid doors fit into body sides rather than wrapping over the roof and combine with triple door seals to reduce wind noise and turbulence, helping quiet the cab. Also, the front of the truck is carefully sealed to provide efficient cooling with minimal aerodynamic drag. An aluminum hood with twin power domes also enhances efficiency with lower weight than a steel hood.

New, heated, power-adjustable trailering mirrors are offered on SLE and SLT – including All Terrain – and Denali, featuring segment-first LED rear guidance lamps. The large mirrors feature 51 square inches of flat mirror surface positioned over a 24.5-square-inch convex mirror surface (convex area not heated or power adjustable). The new LED rear guidance lamps are integrated into each mirror to enhance trailer visibility when backing up, as well as an amber auxiliary clearance lamp.

Sierra interior details

The Sierra’s interior is roomy, quiet and functional, with a strong cab structure the foundation for its refinement. Nearly two-thirds of the cab is made of high-strength steel, while shear-style body mounts are used to tune out both up-and-down and side-to-side movement for a quiet, comfortable ride. Double and crew cab models have a set of hydraulic body mounts to further isolate the cabs.


Front seating configurations included on the SLE:

Standard 40/20/40-split cloth bench seat with fold-down armrest that includes covered storage and three integrated cup holders. Heated, leather-trimmed bench seat available and heated, cloth front bucket seats included with All Terrain.

Sierra safety

The 2015 Sierra’s safety systems incorporate technologies designed to protect the driver and passengers before, during and after a collision.

The available Driver Alert package, offered on Sierra Denali, regular cab SLE and double cab/crew cab SLT models, helps drivers avoid crashes with lane departure warning, forward collision alert and the segment-exclusive safety alert seat. Front and rear park assist is also included with the package on SLE and SLT (it is standard on Denali).

Forward collision alert tracks the vehicle ahead using a forward-facing camera and a three-step visual and sound alert, while the safety alert seat, uses directional vibrations to warn of a crash treat. Lane departure warning technology alerts the driver when the truck drifts over a lane line when travelling at least 56 km/h (35 mph).


- GMC Canada

CarAndTruck.caNov. 11, 2016