Diesel Power
Mobile Icon BtnMobile Icon Btn RO
Newsletter

2015 Chevrolet Silverado HD and GMC Sierra HD

A Fresh Look for 2015

Heavy-duty pickup trucks, defined by a gross vehicle weight (GVW) of 8,500 pounds or higher, account for a quarter of full-size pickup sales in the U.S. Interestingly, about two-thirds of heavy-duty pickups are diesel powered. Because these workhorses are valued for their towing capability and durability, the 2015 Chevy Silverado and GMC Sierra are created to be stronger and smarter.

Recall that 2011 marked inner improvements for the HD Silverado and Sierra with new chassis and fully boxed frames, and an updated Duramax engine and Allison transmission. For 2015, exterior changes and other improvements resembling those that the 1500 line received for 2014 will be implemented. Look for unique chrome bumpers, HD hoods and headlamps, and prominent cooling intakes to differentiate the HDs and also the GMC and Chevy brands. The front is designed for enhanced cooling by enabling the engine air intake to be isolated from the hot engine compartment, keeping intake air cooler. The design also improves aerodynamics for a quieter cabin and overall efficiency. Moving toward the rear, the new CornerStep rear bumper allows for easier cargo access, along with hand assists molded into the bedrail protectors. The downward slam of the tailgate is controlled by an EZ Lift damping system.

The new interiors might look familiar if you’ve been inside a new 2014 Sierra or Silverado 1500. Quiet and insolated (due to inlaid doors and triple door seals), these interiors feature increased space and comfort and extensive storage. The cab is all-new as well, made of high-strength steel and set upon hydraulic body mounts.

Towing and hauling improvements include fully integrated cruise control, auto grade braking, diesel exhaust brake, integrated trailer brake control, hill start assist, hill descent control, and StabiliTrak with trailer sway control. To plan for the unplanned, a driver alert package includes Forward Collision Alert, Lane Departure Warning, available Safety Alert Seat, rear camera, front and rear park assist, and side curtain and seat-mounted side airbags. Also expect best-in-class payload (7,374 pounds), and towing capacities of 19,700 pounds with a factory hitch and 23,200 pounds with fifth-wheel towing.

As for what’s under the hood – well, don’t expect any changes for now, unless you’re looking for a bi-fuel version of the Silverado HD or Sierra HD, which will be available for the 2015 model. The fully-warranted bi-fuel version has a 6.0L V-8 engine with special hardened valves and valve seats that enable it to alternate between gasoline and compressed natural gas (CNG) with the push of a button.

Be on the lookout for these giants to hit dealer floors during the first quarter of 2014.

Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!
203 comments
Nic Bergounous
Nic Bergounous

U knw the point of these pages r so people can talk and share info about there rigs! Its about time some1 starts setn u punks straight!

Nic Bergounous
Nic Bergounous

Some1 always has 2 b a smart ass. I said on a flat road because some people say ya it gets 25mpg. But they dnt tell u it was all down hill! Thanks for youe brilliant comment Chad Kaza

Chad Kaza
Chad Kaza

Cool now all we need is all flat roads!!

Tyrell Laing
Tyrell Laing

454 Chevy burns very clean but is it considered environmentally friendly lol

Tyrell Laing
Tyrell Laing

Burns "clean" but uses way more fuel I don't see how that is good for the environment

Nic Bergounous
Nic Bergounous

I got 21.4 mpg on the freeway all flat! Stock 13 cummins. I thought that was good. Imagine what it wld do with no dpf?

Kent Estes
Kent Estes

Take them signs and shovem up some liberals ass.

Evan Gray Waller
Evan Gray Waller

Yeah it's a shame too my 02 dmax might smoke a bit but shell knock down 24mog all day on highway

Chad Kaza
Chad Kaza

Damn shame the milage SUCKS!! THANKS GOVERNMENT!! BTW we can't read the sign yo.

Karl Barnesjr
Karl Barnesjr

I usually park in the back for more space, but if you insist!

Bob Hall
Bob Hall

I didn't realize Diesel Power Magazine is pro Max.

Bob Hall
Bob Hall

Until you have to work on it.

Mike Oborn
Mike Oborn

No need to Stroke or RAM when you got the Max!

George Slibsager
George Slibsager

At my dealership I just inspected our first 2015 F250. It was a blast to test drive.

Calvin Wold
Calvin Wold

Ya about time. DMAX took it last time LOL

Connor Casper
Connor Casper

In that truck nahhh , u need a truck that actually has power to spin those wheels

Joe Jernigan
Joe Jernigan

Maybe......then it broke down right there!

Eldon Haney
Eldon Haney

Can't wait till the HD shootout goes down... Ford is gonna whoop that azz with 440/860!

Greg Pugach
Greg Pugach

Ugly crap. Ford or Dodge all day. But if you take care of them they all work.

Nathan Robinson
Nathan Robinson

5.9 an 6.7 cummins, 6.7 w/850 ft-lbs stock where you gunna beat that

Abe Cyr
Abe Cyr

That ugly son of a bitch should have a Toyota emblem on the front. First it was being ugly ass new Camaro and now the latest version of the ugly ass Silverado. I believe that Government Motors idea of moving their styling department to China was the wrong thing to do and has definitely given most of their vehicles a strong Asian look

Abe Cyr
Abe Cyr

And just so you know cupped front tires are caused by two things... under inflation of the tires or worn ball joints. Both of which cannot be avoided regardless of what style front end you have.

Abe Cyr
Abe Cyr

Unlike yourself Ben I am an adult. I purchased my own truck with my own hard earned money and must fix it when it breaks with my own hard earned money. I do not drive a Cummins just to look cool and pick up chicks. I drive it because the Cummins is by far the longest lasting and most reliable diesel available and dodge is the only manufacturer who have not permanently stuck their heads in there ass and done away with the manual transmission option as Ford and Chevy have. So go ahead and continue to run your mouth about me only driving a Cummins to be cool

Ben Kainen
Ben Kainen

why mess with the best... gotta let everyone catch up still

Ben Kainen
Ben Kainen

yup so they can be overweight, no more durable, and feel cool, look at the front tires on a dodge or a ford,,, more cups than your cabiniets got

Brandon Laws
Brandon Laws

Damn Garrett, where's your supporting "facts" of that? Because calling me a dumbass don't justify anything. But this is America, and you got the right to be wrong and immature, I guess.

Dean Wesson
Dean Wesson

hahahahahaahhahaha hehehehehe hahahahaha u keep telling yerself that

Diesel Power