For immediate release
GMC SIERRA HYBRID
New for 2010
Side curtain air bags and seat-mounted side air bags standard on all 1500 models
Revised interior door trim
Model Lineup
Engine Transmission
Vortec 6.0L V-8 2-mode hybrid with
(LZ1) four fixed gears
Silverado Hybrid s s
Key
Standard s
2010 SIERRA HYBRID FUEL ECONOMY IMPROVES 25 PERCENT, THANKS TO
GMC’S ENGINEERING EXPERTISE
The GMC Sierra Hybrid is a powerful, full-size pickup that achieves 40-percent greater
city fuel economy and a 25-percent improvement in overall fuel economy than non-
hybrid models, while delivering the capability expected of a full-size truck – including a
6,100-pound (2,767 kg) towing capacity.
Partnering General Motors’ patented two-mode hybrid system and a powerful 6.0L gas
V-8, the Sierra Hybrid delivers highly efficient performance, including all-electric driving
up to 30 mph (48 km/h). That saves fuel even when the truck is fully loaded or towing a
trailer.
EPA-estimated fuel economy for both 2WD and 4WD models is 21 mpg in the city and
22 on the highway. With the 26-gallon (98 L) fuel tank, Sierra Hybrid delivers a cruising
range of more than 500 miles.
The Sierra Hybrid is offered in the Crew Cab body style on both 2WD and 4WD models.
Each model is equipped with several standard, popular features, including StabiliTrak
electronic stability control system, a locking rear axle and a trailering package. Sierra
Hybrid also offers dual-stage frontal air bags and head curtain side air bags, and it is the
only full-size truck with five-star side-impact ratings in federal crash tests.
Hybrid details
The Sierra 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
system not only enables the Sierra to launch and drive up to 30 mph 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 Sierra Hybrid, the hybrid system itself generates the electricity used to propel the
vehicle. When the brakes are applied or the vehicle is coasting, the electric motors within
the hybrid system create electricity that is stored in the 300-volt battery. This stored
energy moves the vehicle and the regenerative braking cycle is renewed.
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 with high levels of capability. The 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 Sierra is seamless – the battery pack is beneath
the rear seat – and delivers a quiet driving experience. Contributors to this include:
New 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 steering 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 with quietness, the Sierra Hybrid also delivers exceptional driving smoothness,
thanks to specifically tuned shocks for its Z85 suspension and a hydraulic body mount.
Located on the passenger side of the chassis, the hydraulic mount provides a dramatic
improvement in highway driving smoothness, particularly on rough or choppy road
surfaces.
Trailering performance
In addition to increased fuel economy, the Sierra Hybrid’s electrically variable
transmission also provides tremendous trailering capability, enhancing driving
smoothness and quality when towing. Towing capacity is 6,100 pounds (2,767 kg) with
2WD models and 5900 pounds (2,676 kg) with 4WD models.
Electric drive is enabled up to approximately 30 mph (48 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 Sierra 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.
###
CONTACT(S):
Dayna Hart
GMC Communications
Office: 313-667-0092
E-mail: dayna.hart@gm.comJim Hopson
Brian Corbett
GM Hybrid Technology Communications
Office: 586-857-0323
E-mail: brian.corbett@gm.com
Teresa Cid
Gerente de Relaciones Públicas y Comunicación
General Motors de Mexico
Office: 011-5255-5901-3706
E-mail: teresa.cid@gm.com
For immediate release
SPECIFICATIONS
Overview
Model: GMC Sierra Hybrid
Body style / driveline: full-size, 4-door pickup; front-engine, 2WD & 4WD
Construction: body-on-frame, all-welded, fully-boxed, ladder-type channel
design, with hydroformed front and rear sections
EPA vehicle class: full-size pickup
Manufacturing location: Silao, Mexico
Engine
Type: Vortec 6.0L V-8 FlexFuel (LZ1)
Application: Sierra Hybrid
Displacement (cu in / cc): 364 / 5967
Bore & stroke (in / mm): 4.00 x 3.62 / 101.6 x 92
Block material: cast aluminum
Cylinder head material: cast aluminum
Valvetrain: overhead valve, two valves per cylinder, variable valve timing
Ignition system: coil-near-plug ignition, iridium electrode tip/ iridium core spark
plugs, low resistance spark plug wires
Fuel delivery: Active Fuel Management™; sequential fuel injection
Compression ratio: 10.8:1
Horsepower (hp / kW @ rpm): 332 / 248 @ 5100*
Torque (lb-ft / Nm @ rpm): 367 / 498 @ 4100*
Recommended fuel: regular unleaded
Maximum engine speed (rpm): 6000
Emissions controls: close-coupled catalytic converter, Quick Sync 58X ignition,
returnless fuel rail, fast-response O² sensor
EPA estimated fuel economy 2WD: 21 / 22
(city / hwy): 4WD: 21 / 22
Transmission
Type: 2-mode continuous electric ratio hybrid transmission with four
fixed gears
Gear ratios (:1):
First: 3.69
Second: 1.70
Third: 1.00
Fourth: 0.73
Reverse: infinite – 1.70
EVT1: infinite – 1.70
EVT2: 1.70 – .5
Final drive ratio: 3.08
Vehicle Power System
Power electronics system: 300-volt (transmission, air conditioning); 42-volt (power
steering); 12-volt (vehicle accessories)
Batteries: 300-volt (hybrid system); 12-volt (vehicle accessories)
Chassis / Suspension
Front: independent, coil-over-shock
Rear: two-stage leaf spring
Steering type: 42-volt electric power-assisted rack-and-pinion
Steering ratio: 17.75:1
Steering wheel turns, lock-to-lock: 3
Brakes
Type: power-assisted four-wheel discs with fully blended
regenerative braking control, standard stability control,
traction control and four-channel ABS; vented front discs,
solid rear discs; twin-piston front calipers, single-piston rear
calipers
Rotor diameter x thickness (in / mm): front: 13 x 1.18 / 330.2 x 30
rear: 13.5 x 0.79 / 345 x 20
Wheels / Tires
Wheel size and type: 18 x 8-inch chrome-clad aluminum
Tires: P265/65R18 AL2
Dimensions
Exterior
Wheelbase (in / mm): 143.5 / 3645
Overall length (in / mm): 230 / 5844
Overall width (in / mm): 79.9 / 2031
Overall height (in / mm)
2WD: 73.8 / 1875
4WD: 74 / 1880
Track (in / mm)
Front: 68.1 / 1732
Rear: 67 / 1702
Min. running ground clearance (in / mm): 9 / 229 (2WD, 4WD & AWD)
Ground to top of load floor (in / mm):
2WD: 33.5 / 851
4WD: 33.8 / 860
Step-in height
2WD: 22 / 561
4WD: 22 / 561
Approach angle (deg)
2WD: 15.3
4WD: 15.5
Breakover angle (deg)
2WD: 19.3
4WD: 19.6
Departure angle (deg)
2WD: 22.8
4WD: 23.1
Interior
Crew Cab, Front Crew Cab, Rear
Headroom (in / mm): 41.2 / 1048 40.5 / 1030
Legroom (in / mm): 41.3 / 1049 39 / 991
Shoulder room (in / mm): 65.2 / 1657 65.1 / 1655
Hip room (in / mm): 64.3 / 1635 65.4 / 1663
Curb weight & payload
GVWR Curb Weight Max. Payload Weight
(lb / kg) (lb / kg) (lb / kg) Distribution
(% front / rear)
2WD:
Crew Cab Short Box 7100 / 3220 5641 / 2559 1459 / 662 59 / 41
4WD:
Crew Cab Short Box 7300 / 3311 5882 / 2668 1418 / 643 59 / 41
Cargo box
Cargo volume (cu ft / L): 53.2 / 1506
Length at floor (in / mm): 69.3 / 1760
Width at floor (in / mm): 62.4 / 1586
Width between wheelhousings (in / mm): 50.6 / 1286
Tailgate width (in / mm): 61.5 / 1564
Inside height (in / mm): 21 / 553
Capacities
Seating: 5 or 6
Fuel tank (gal / L): 26 / 98
Engine oil (qt / L): 6 / 5.7
Cooling system (qt / L): 14.4 / 13.6
GCWR (lb / kg): 2WD: 12000 / 5443
4WD: 12000 / 5443
Trailer towing maximum with ball hitch (lb / kg): 2WD: 6100 / 2767
4WD: 5900 / 2676
* SAE certified.
Note: Information shown is current at time of publication.