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The Sierra Hybrid is built around GM’s Electrically Variable Transmission (EVT) and 300-volt nickel-metal hydride Energy Storage System (ESS), which are teamed to a regular GMC 6.0-liter V8. The GMC Sierra 1500 Hybrid offers what is for many the best of both worlds: hybrid fuel efficiency and the Sierra 1500 work truck reputation.
The motor features cylinder deactivation which allows it to operate in a four-cylinder mode for improved efficiency when traveling at a steady speed.
The hybrid drivetrain offers a 40 percent improvement in city fuel economy and 25 percent improvement in overall fuel efficiency compared to the standard Sierra 1500.
This stored energy is used to propel the vehicle and the regenerative braking cycle is renewed. With GM’s two-mode hybrid system, the electric power used to propel the vehicle is generated by the hybrid system itself.
The Sierra Hybrid is offered in GMC’s Crew Cab body style with both 2WD and 4WD models. Each model is equipped with StabiliTrak electronic stability control system, a locking rear axle, and a trailering package. The truck also comes standard with dual-stage frontal air bags and head curtain side air bags for safety.
Located on the passenger side of the chassis, the hydraulic mount provides improved highway driving smoothness, particularly on rough or choppy road surfaces.