Chevrolet Tahoe 2-mode hybrid SUV

We got our first experience with the upcoming hybrid Chevy Tahoe during the GM full line program in Nashville this summer and the model was officially launched at the Texas State Fair Auto Show. Also shown was the sister GMC Yukon two-mode hybrid. The good news for fullsize SUV lovers is these new trucks will see a 40 percent fuel economy improvement in town and 25 percent rise in fuel economy on the highway thanks to the new two-mode hybrid powertrain set to arrive in showrooms late this fall.

The new hybrid models closely resemble their gas-only production counterparts from the outside. The differences will be that the new hybrid models receive a new front fascia (with taller air dam), new aluminum hood (for reduced weight), new rear fascia (including LED taillamps) and aluminum rear hatch (again for the weight savings). And, of course, the hybrid badging.

Inside we see the hybrid designation on the instrument panel, which includes a new “economy” gauge to alert drivers of their most fuel-efficient driving habits. There is also the hybrid mode display on the center dash monitor which shows energy use and production from the hybrid gasoline/electric motors.

he new hybrid SUVs will also see the benefit of active fuel management technology in the gasoline engines. Active fuel management allows the engine to operate in four-cylinder mode under light loads. On-road the new two-mode hybrid powertrain operates nearly seamlessly save for the added gauges and lights in front of you. About the only time you really know that this is a hybrid system is when the gasoline engine shuts off at low speeds or at rest.