2005 GMC Sierra Hybrid

The Sierra Hybrid is powered by a standard Vortec 5300 5.3-liter V8 engine and a 4-speed Hydra-Matic automatic transmission coupled with the full-size truck segment’s first hybrid propulsion technology for improved fuel economy. The system replaces the traditional starter motor and alternator with a compact 14-kw electric induction motor or starter generator integrated between the engine and transmission. The starter generator provides fast, quiet starting power and allows the gasoline engine to automatically start and stop under certain conditions to conserve fuel. The Sierra Hybrid also offers four 120-volt/20-amp electrical auxiliary power outlets located under the rear seat and in the pickup bed. The Sierra Hybrid is offered for 2005 with limited regional availability.