2011 CHEVROLET SILVERADO HD
STRONGER, STURDIER, MORE SECURE
STRONGER
The new Silverado HD is powered by an improved version of the Duramax Turbo-diesel and Allison transmission. It has more power, class leading fuel-economy and greatly reduced emissions. In the end, the 2011 Silverado HD is the most powerful heavy duty ever made.
STURDIER
An all-new high-strength steel fully boxed chassis delivers greater capabilities, including best-in-class conventional towing capabilities, class-leading 5th wheel towing capabilities and best-in-class payload.
MORE SECURE
With new standard StabiliTrak on all SRW models, Chevy has incorporated important new technologies that improve overall driver confidence and control. Trailer Sway Control. Hill Start Assist, a “Smart” Diesel Exhaust Brake system and Intelligent Brake Assist join Tow/Haul mode and the available Integrated Trailer Brake Controller to make driving and hauling a heavy load more secure than ever.
Power & Performance
• The most powerful heavy duty diesel pickup ever made with segment-leading 397 hp and 765 lb.-ft. of torque for the 6.6L Duramax.
• Segment-leading Chassis Cab diesel power of 335 hp and 685 lb.-ft. torque.
• Unsurpassed Duramax cold start performance of under 3 seconds down to minus 40°F.
• Up to 11% greater diesel highway fuel economy. 
• B20 biodiesel capable. 
• Cleanest Duramax ever built with new SCR/DEF emissions system.
• Standard 360 hp/380 lb.-ft. Vortec 6.0L gasoline engine.
Ride & Handling
• Segment-leading conventional towing capacity of up to 17,000 lbs.
• Segment-leading 5th wheel towing capacity of up to 21,700 lbs.
• Segment-leading payload capacities of up to 4,192 lbs. for 2500HD and 6,635 lbs. for 3500HD.
• All-new fully boxed frame, redesigned front and rear suspension, revised steering and stronger brakes.
• Every 4WD Silverado HD can be equipped with the Snow Plow Prep Package with FGAWR ratings of up to 6,000 lbs.
• StabiliTrak is standard (SRW) with new Trailer Sway Control and Hill Start Assist.
• New “smart” diesel exhaust brake (standard on Duramax).
• New Intelligent Brake Assist.
• Available Integrated Trailer Brake Controller.
• Available automatic locking rear differential.
Styling, Comfort & Convenience
• Bold new front-end design.
• All-new 17", 18" and 20" wheels and tires.
• Split-bench seat with lockable underseat storage and 12-volt power outlet.
• Available EZ-Lift Tailgate.
• Wide-opening (to 170 degrees) Extended Cab rear doors.
• Flat rear load floor on Extended and Crew Cabs.
• Standard OnStar Directions & Connections Plan (available WT).
• Available Chevrolet Wi-Fi by Autonet.
• Available Bluetooth for Phone.
• Available Rearview Camera System.
• Available USB port for portable devices.
Quality, Reliability & Durability
• 5-year/100,000-mile powertrain warranty with roadside assistance and courtesy transportation.
• IntelliChoice Best Truck Value Over $28,000 for 2010.
• Remarkably quiet diesel engine operation.
• Oil Life Monitor System and OnStar Vehicle Diagnostics.
Safety & Security
• Standard OnStar (available WT).
• Available head-curtain and seat-mounted side-impact air bags on select models.
• Standard dual frontal air bags.
• Std. safety belt pretensioners and Energy Management Retractors.
Duramax
New System Reduces Tailpipe NOx Emissions
The enhanced, legendary Duramax 6.6L Turbo-Diesel is the most powerful Duramax ever built generating more horsepower and torque than any competitor. This proven powerplant gets the job done while being friendlier to the environment.
The improved Duramax uses the latest emission control technology, reducing Nitrogen Oxide (NOx) emissions by a whopping 63%, when compared to the 2010 model. GM engineers determined the best way to accomplish this remarkable reduction of diesel emissions was to employ a Selective Catalytic Reduction (SCR) system that uses Diesel Exhaust Fluid (DEF)
The new Duramax is capable of running on a clean burning alternative fuel blend that uses 20% biodiesel and 80% petroleum diesel fuels. Biodiesel is produced from domestic, renewable resources. B20 has demonstrated significant environmental benefits—its use reduces unburned hydrocarbons, carbon monoxide and particulate matter. B20 delivers these benefits with a minimum increase in cost.
Selective catalytic Reduction (SCR)
The SCR system is an after-treatment system, since it treats the vehicle’s exhaust after combustion.
Here’s how it works:
-A fine mist of DEF is injected into the exhaust while the engine is running.
-The heat from the exhaust converts the DEF into ammonia.
-When the ammonia, mixed with exhaust gases, reaches the SCR catalyst, the NOx emissions are broken down.
-The Diesel Particulate Filter (DPF) then captures soot to incinerate it during regeneration cycles.
-Water vapor, nitrogen and reduced emissions exit the exhaust system.
Allison Transmission
You can’t afford an unproven transmission when you’re towing up to 21,700 lbs. That’s why Chevy has beefed up the already legendary and nearly bulletproof Allison transmission. It’s been strengthened to handle the higher torque output of the new 6.6L Duramax engine, while also helping to improve fuel economy and provide seamless assistance with the new Exhaust Brake System. For the 2011 model year, the following improvements and features are included with the Allison transmission:
› A larger-diameter output shaft and more robust clutches
› Two overdrive gears for optimal efficiency
› Driver Shift Control (DSC) with tap-up/tap-down shifting
› Tow/Haul Mode for better control and improved cooling when towing or hauling heavy loads
› Cruise Grade Braking
› Power Take Off with a class-leading 250 lb.-ft. of torque