2010 GMC Yukon Hybrid news, pictures, and information

New for 2010

GMC YUKON HYBRID LINEUP EXPANDS WITH UNIQUE YUKON DENALI HYBRID

The Yukon Hybrid's fuel-saving performance is derived from GM's advanced Electrically Variable Transmission (EVT) and 300-volt nickel-metal hydride Energy Storage System (ESS), which work wîth the standard 6.0L V-8 gasoline engine wîth Active Fuel Management (AFM) and late intake valve closing (LIVC) technology. GM's hybrid technology system not only enables the Yukon to launch and drive up to 27 mph (43 km/h) on electricity alone, it allows the Vortec 6.0L V-8 engine to operate in its more economical V-4 mode for longer periods.

As part of the vehicle's emission control system, the ESS is warranted for eight years/100,000 miles.

In the Yukon Hybrid and Yukon Denali Hybrid, the hybrid system itself generates the electricity to propel the vehicle. When the brakes are applied or the vehicle is coasting, the electric motors in the hybrid system create electricity and store it in the 300-volt battery. This electricity helps move the vehicle.

The hybrid system provides seamless, dependable power on demand in an efficient package. In fact, its electric motor is less than half the size of those in single-mode hybrid systems. This technology was developed and is still used in fleets of hybrid transit buses in more than 70 North American and European cities. Scaled down for use in passenger vehicles, the two-mode system delivers fuel savings where it is needed most – in large vehicles wîth high levels of capability. The two-mode system was first introduced on the 2008 Yukon Hybrid. It is a core part of GM's energy diversity efforts, centered on reducing dependence on petroleum, improving fuel economy, reducing emissions and minimizing the automobile's impact on the environment.

Quiet and smooth

Integration of the hybrid system on the Yukon is seamless – the battery pack is beneath the second-row seat – and delivers a quiet driving experience. Contributors to this include:

• Specific exhaust system and resonator tuned for the 6.0L engine's Active Fuel Management operation

• Additional engine intake induction tuning for reduced interior noise and pleasing sound quality

• Low-rolling resistance, 'quiet-tuned' P265/65R18 tires for reduced road noise

• Electrically driven 300-volt air conditioning compressor reduces vibration and allows the standard, tri-zone HVAC system to cool the passenger compartment even when the gasoline engine is shut off

• Electrically driven 42-volt variable-assist power §teering reduces vibration and provides up to a 0.5-mpg fuel economy improvement by reducing parasitic losses common in belt-driven hydraulic systems

• Energy Storage System (ESS) cooling system internal fan is tuned to be quiet at low vehicle speeds.
Along wîth quietness, the Yukon Hybrid also delivers exceptional driving smoothness, thanks to specifically tuned shocks.


Trailering performance

In addition to increased fuel economy, the Yukon Hybrid's electrically variable transmission also provides tremendous trailering capability, enhancing driving smoothness and quality when towing.

Electric drive is enabled up to 27 mph (43 km/h), saving fuel even when the truck is towing a trailer.

The EVT incorporates grade braking and tap up/tap down shift control. It also benefits towing on curves or lower-speed back roads, as exceptionally smooth gear transitions eliminate the 'shift shock' torque disruption that can occur during abrupt shifts, such as when slowing or braking.

In addition to the eight-year/100,000-mile warranty on the Yukon Hybrid's Energy Storage System, GM's five-year/100,000-mile Powertrain Limited Warranty continues to make GM a better choice for customers. GM's coverage focuses on the complete ownership experience and includes other provisions that competitors do not offer, including transferability to the next owner, more complete coverage of parts, and coverage for new and certified used vehicles. In addition, GM offers complementary courtesy transportation and roadside assistance.