liter V8 hybrid
(from GM Press
Release) 2011 GMC YUKON HYBRID LINEUP OFFERS 33 PERCENT
GREATER CITY FUEL ECONOMY
Unique in the market, the GMC Yukon Hybrid and Yukon Denali Hybrid
deliver exceptional fuel economy – an estimated 20 mpg in the city –
with full-size SUV capability. The vehicles seat up to eight and can
tow up to 6,200 pounds (2,812 kg). Electric drive is enabled up to
30 mph (45 km/h), saving fuel even when towing a trailer.
Yukon Hybrid models are built on GM’s full-size SUV platform, which
incorporates features such as a fully boxed frame, coil-over-shock
front suspension, rack-and-pinion steering and a premium interior
that bolsters the vehicle’s comfort, quality and capability. Wide
front and rear tracks enhance handling and lower the center of
gravity for a more confident road feel.
Standard safety features include StabiliTrak stability control
system with rollover mitigation technology and front seat-mounted
side air bags.
Minimal changes greet the Yukon Hybrid lineup for 2011. For expanded
cell phone compatibility and more robust voice recognition, OnStar
is upgraded to Generation 9.0, with Automatic Crash Response. There
are also two new exterior colors: Mocha Steel Metallic and Carbon
Yukon Denali Hybrid
The Yukon Denali Hybrid
rides on unique, 22-inch, eight-spoke, flangeless chrome wheels that
make a stylish Denali appearance statement.
Inside, designers filled the cabin – available in Ebony or Cashmere
– with luxurious amenities such as standard 12-way power,
heated/cooled leather-appointed perforated front seating and heated,
second-row, leather-appointed bench seating. Available options on
this fully equipped vehicle are a sunroof, rear-seat entertainment
DVD system and side blind zone alert sensing system and a
theft-deterrent steering wheel.
Enhanced connectivity includes standard OnStar with Directions &
Connections and Turn-by-Turn Navigation, navigation radio with rear
camera system, a Bose Centerpoint Surround Sound System and three
years of real-time XM NavTraffic.
A comprehensive safety package of crashworthiness and
crash-avoidance features includes front- and side-impact air bags,
anti-lock brakes and StabiliTrak with traction control. The Yukon
Denali Hybrid also is equipped with GM’s MagnaRide suspension, the
first application of this advanced technology in a Yukon. MagnaRide
uses magnetic particles in the shock absorber fluid to adjust the
damping rate of the shock absorbers – based on road conditions and
vehicle dynamics – to help keep tires in contact with the road.
Patented, industry-leading 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 with the standard 6.0L V-8 gasoline
engine with Active Fuel Management (AFM) and late intake valve
closing (LIVC) technology. GM’s hybrid technology system enables the
Yukon to launch and drive up to 27 mph (43 km/h) on electricity
alone and 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 as part of the vehicle’s
emission control system.
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.
First introduced on the 2008 Yukon Hybrid, the two-mode 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
for and is still used in 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 vehicles with high levels of capability. The
two-mode system 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
• 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 steering
reduces vibration and provides up to a 0.5-mpg fuel economy
improvement by reducing parasitic losses common in belt-driven
• Energy Storage System (ESS) cooling system internal fan is
tuned to be quiet at low vehicle speeds.
Along with quietness,
the Yukon Hybrid also delivers exceptional driving smoothness,
thanks to specifically tuned shocks, or in case of the Yukon Denali
In addition to the eight-year/100,000-mile warranty on the Yukon
Hybrid’s Energy Storage System, GMC’s Five-Year/100,000-mile
Powertrain Limited Warranty continues to make GMC a better choice
for customers. 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, GMC offers free courtesy transportation and roadside