As the last year of this generation before GMC redesigns its full-size pickups for 2014, the Sierra 1500 Hybrid is essentially unchanged for 2013. Aside from its gas-electric powertrain, it's almost identical to the conventional Sierra 1500 Crew Cab, sharing most of its technology, safety features and options
Power comes from a 6-liter Vortec hybrid V8 engine with 332 horsepower and 367 foot-pound of torque. A four-speed automatic transmission and rear-wheel drive are standard, while four-wheel drive is available as an upgrade.
The Sierra pulls an impressive 20 mpg city and 29 mpg highway, exceptional fuel economy for a V8-powered pickup truck. Helping it achieve these numbers are a braking system that regenerates the electric motor's battery, and an engine management system that reduces the number of working cylinders when they aren't needed.
The Sierra 1500 Hybrid boasts a cavernous amount of space, and its crew cab is large enough to seat four adults. Hard plastics and utilitarian fabrics dominate the interior, however, and leather upholstery is a recommended option.
The hybrid engine does its best to transition seamlessly from electric to gas as the vehicle accelerates, but can be a bit jerky at times. The pickup has a silky steering system and rides smoothly, like an SUV. It's also eerily quiet by the category's standard -- for many traditional pickup buyers, this might take some getting used to. And while the hybrid can tow small loads in low gear, its capabilities are a bit light when compared to non-hybrid trucks.
While the Sierra 1500 Hybrid's improved fuel economy is more than impressive, the increased cost of the vehicle might counteract any potential savings for buyers -- which is too bad, because the hybrid engine is by far the biggest draw of this model.
The 1500 Hybrid 3HA is powered by a 6-liter V8 hybrid Vortec engine with 332 horsepower and 367 pound-feet of torque. Rear-wheel drive and a four-speed automatic transmission are standard. Four-wheel drive is available as an optional upgrade. Standard features include: 18-inch aluminum wheels, daytime running lamps, heated power-adjustable mirrors, a satellite radio, a CD and MP3 player, Bluetooth, a front-split bench, cruise control, dual zone automatic climate control, a leather wrapped steering wheel, an OnStar navigation system, tilt steering and stolen vehicle assistance.
Optional features are somewhat limited and include: a power's driver seat, front recovery hooks, 17-inch aluminum wheels, a steel spare tire and all-weather floor mats.
The Sierra 1500 Hybrid 3HB trim level features the same engine and transmission as the 3HA. Four-wheel drive is also available on this model. Standard features match the 3HA, however the split-front bench has been removed and new equipment includes: a Bose premium audio system, real-time traffic, a floor console, auto-dimming rear-view mirror, power-adjustable pedals, power front bucket leather seats, a universal home remote, a rear-window defogger, fog lamps, bed rail protectors, an MP3/CD/DVD system and a rear view camera.
The 3HB adds a sunroof to the 3HA's options list.
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Comparable hauling and size and it tows a bit more with the V8, but flex-fuel engines only option
Impressive array of V8 engines and massive hauling capacity, though not available as a hybrid
Offers both a V6 and V8 flex fuel option to accompany a refined ride an well-designed interior, but fuel economy numbers are nearly impossible to reach on the road
Comparable in price and performance with available four-wheel drive, but acceleration and towing is a bit light