By on June 1, 2016

2017 GMC Sierra Denali 2500HD

GMC’s got a secret, but it’s keeping it hidden under the hood of its 2017 Sierra Denali 2500HD for now.

The company released photos today of the their updated heavy-duty pickup, and made sure everyone noticed the functional hood scoop above its massive grille.

That scoop hints “at what is beneath” the pickup’s mildly redesigned front end, GMC said. Choosing to be mysterious, the automaker gave no other details about the model and its powerplant, claiming information would be released “in the coming months.”

Truck makers never stop fighting the horsepower war, so it’s probably safe to guess the model’s 6.6-liter Duramax turbodiesel will get a power boost, but needs to breathe better to do it.

Rated at 397 horsepower and 765 pounds-feet of torque, the Duramax is outclassed in terms of torque by the diesel-powered Ram 2500 and Ford F-250 Super Duty.

[Image: General Motors]

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93 Comments on “GMC Teases the 2017 Sierra Denali 2500HD, Wants You to Really Notice That Hood Scoop...”


  • avatar
    Dan R

    Ugly and amateurish.

  • avatar
    DeadWeight

    NEEDS 40% MORE WHEEL!!!

    NEEDS 60% MORE LIFT!!!!!

    NEEDS 90% MORE GRILLE!!!!!!!!!!

    NEEDS 400% MORE MOOOOAAAR!!!!!!!!!!!!!!

    BRODOZERS FOR LIFE!!!!!!!!!!!!!!!!!!!!!!!!!

    • 0 avatar
      bball40dtw

      To be fair to GM, those wheels aren’t that big. 20″ isn’t ridiculous on a vehicle that size. 18s are standard.

      Everything else is ridiculous though.

      • 0 avatar
        Steve65

        The fact that it needs ridiculously large wheels to compensate for its ridiculously overheight styling is not a defense.

        A 3/4-ton truck “needing” 20″ wheels is absurd.

        Everything about modern pickups screams “image over function” and this hideous joke is the newest poster child for the affliction.

        • 0 avatar
          Hummer

          What if the brakes don’t allow smaller rim sizes?

          For the Record I think 20″ rims are ridiculous but to each their own.

        • 0 avatar
          Lou_BC

          Tire wise, there isn’t a big diameter difference or even height difference between a 20 inch wheel and an 18.

          My F150 has 18’s and my brother-in-laws has 20’s. Tire circumference is negligibly different.

          20’s on a 1/2 ton or HD used for work is stupid because less side wall means stiffer ride and a greater chance of tire/rim damage if used anywhere other than a paved road surface.

          • 0 avatar
            bball40dtw

            Most will come with 18s. The 20s will be for business owners and rich guys that tow boats and campers.

          • 0 avatar
            Carlson Fan

            Looks to me like there still quite a bit of sidewall there even with the 20’s. I think my 04′ GMC HD has 16′ wheels.

        • 0 avatar
          bball40dtw

          But 20 inch wheels on an F250 look better proportioned than 18-19 inch wheels on a family sedan. These are not egregious wheels. The square wheel wells…that’s pretty gross.

          • 0 avatar
            Lou_BC

            bball40dtw – agreed. 20’s don’t really stand out on a full sized pickup.
            I was parked next to a 80’s era Dodge regular cab and the stock tires on it looked tiny compared to the stock ones on my truck. My brother’s ’78 Chevy had 215/75/15’s on it and I’m pretty sure that is what that Dodge had.

    • 0 avatar
      ttacgreg

      Careful what you say, a certain Big Trucks Reviewer might develop a big crush on you! :)

    • 0 avatar
      DeadWeight

      It’s an Eminence Front

      It’s an EMINENCE FRONT (it’s a rip-off & a comically hideous monstrosity)

  • avatar
    Quentin

    That is a lot of brightwork.

  • avatar
    JimC2

    Is that the “I have a small weewee” option package?

    • 0 avatar
      IAhawkeye

      No. It’s just a stock truck. There’s a like 5’4 guy in my hometown with a brand new Chevy 2500..monster truck I’d guess you’d say. It’s absolutely ridiculous, quad shocks in each corner, huge wheels and tires, painted the entire underside and frame cherry red, and so on.. It’s hidious, although it’s funny to see him have to legitimately jump to get in it. That’s a compensation truck.

      • 0 avatar
        bball40dtw

        Maybe he just likes the truck and decided to spend his money on one. Nah, it’s because of his d!ck…

        Are we really still doing this when Ford, GM, and FCA sell 200K+ trucks per month combined? It can’t all be about d!cks. My wife is driving an F150 Platinum for a couple days and loves it. What does that say about her genitals?

        • 0 avatar
          IAhawkeye

          Haha, could be true! I just wish he had better taste then! There was a time about halfway through his upgrades where it looked great! But then he kept going..I try and stay away from compensation jokes mostly cause they’re tired, not true, and I’d be dissing myself. It’s hard not to make it when you see a truck like that though. Plus it’s not his money, it’s his dad’s.

          Nothing! That’s a fantastic truck, I’m sure. I can’t imagine what a Platinum’s like, I think the Lariat’s are already incredibly nice.

          • 0 avatar
            bball40dtw

            I think the Platinum is too nice for truck stuff. Perfect for my wife. My C-Max hauls more stuff than most half ton trucks through. I really want an XL with some nice add ons, but my C-Max is getting cheaper by the day.

        • 0 avatar
          Dave M.

          I think you just answered your own question there Sally.

        • 0 avatar
          Joe Btfsplk

          I don’t know… Does she play golf a lot?

      • 0 avatar
        Frylock350

        Can’t people just like trucks? If he was 6’4 would you say he was compensating? What does height have to do with vehicle preference? What does any physical trait have to do with vehicle preference? I really enjoy watching people interpret the same action performed by different people in radically different ways.

        Here’s a few I see/read frequently;

        A short haired woman purchases an Equinox -> nobody bats an eye
        A short haired woman purchases a Forester -> LESBIAN!!!

        A 6′ guy buys an F150 -> nobody bats an eye
        A 5′ guy buys the same truck -> compensating

        A white dude buys an Escalade -> successful businessman
        A black dude buys the same SUV -> drug dealer

        All these things are just ways we express our own prejudices towards others in our society. We interpret the actions of those we discriminate against negatively; those we don’t positively. That’s what you’re doing whether you realize it or not.

        What should he drive in your eyes? A compact sedan and that’s it?

        I initially bought a CCSB truck as it was the closest approximation for the b-body wagon I had. Now I find that I like trucks. They’re fun to drive in their own way. I can’t be the only one who likes driving trucks. The F150 and Silverado wouldn’t be 1 & 2 on the sales chart if that were the case.

      • 0 avatar
        tresmonos

        JimC2, IAhawkeye, you two are doing what psychologists call ‘projecting.’ So are we to draw inferences that you two have insecurity issues regarding genitalia, socioeconomic standing or something regarding your sex?

        • 0 avatar
          DeadWeight

          Tres, my issue with this “look” is that so much of it is superfluous and non-functional.

          I can understand some (even quite a bit) of styling details, hopefully by a talented designer’s pencil, to inject some elements of well-proportioned style into any vehicle’s exterior aesthetics.

          I actually want that (I still think a 2005 Jaguar XJ8 Supercharged looks bad-a$$ in a good way, as does an Aston Martin Vantage, which I’d never buy/own, but is an all time classic, looks-wise).

          But these trucks, from all manufacturers, are over the top ridiculous IMO, with all sorts of forced design elements of the totally unnecessary and garish and idiotic stylistic touches in terms of type and size, that they exceed the limit of rationally allowable excess by an factor of miles.

          But to those wanting/lusting after/buying them, Godspeed. That’s what makes a market.

          I will always find the modern, overstyled, excessively sized, chrome plated-everywhere Brodozer comically sad, however.

          • 0 avatar
            tresmonos

            I agree with you with respect to design. I think they resemble sand box tonka trucks. That may be why they sell so well, who knows?

            The Super Duty was a marketing gamble that paid off. Ford moves a lot of ‘3/4’ and ‘1’ ton chassis. Now, they are literally changing the fascia of a 15 year old truck. in 199 they made a marketing brand ‘Super Duty,’ placed it all over the truck, differentiated the fascia from the 1/2 line and boom – profit.

            The lame 4ss comments about d1ck size are so mind numbing. There are A LOT of insecure commentators in this thread.

            I drive a P415 and I hate the bed rail height. I guess you could say that I don’t give a flying f*ck about how it looks considering it is a stripped trim level, has about 4 grand worth of body and paint damage on it, no bed liner and has < 45k on the clock and is < 3 years old.

            Give me a '3/4 ton' frame that won't rust away, a durable, powerful powertrain, aluminum body panels that won't rot to bits and a tow hitch and that's my dream truck. I don't care how it looks. You can paint it while purging the booth lines, just leave the flashy chrome off of it or allow me to get a work truck trim package like my P415.

            Oh, make it a plug in hybrid, too. With a V8. Just give me 20 f*cking miles of electric range. It can’t be that hard – the god [email protected] weight savings in Aluminum yields room for a 600lb battery.

          • 0 avatar
            tresmonos

            I honestly think this will sell well. GM marketing is learning.

          • 0 avatar
            DeadWeight

            I agree about the phallus size comments.

            I haven’t made any for a reason; the same thing said of p/you truck buyers could be at least as easily said of Z06, Wraith, etc., owners.

    • 0 avatar
      dividebytube

      Back in the mists of time when I was taking my wife to birthing class, one of the other couples had a huge Ford F250. The guy was a short man.

      I’m tall and was driving a little Nissan hardbody 4X2.

      When he was tailgating me down the parking ramp all I could think of was “compensation”.

      • 0 avatar
        mason

        Whats your reasoning when somebody in a compact tailgates you? Rationalize that he must be hung to his knees and the dam thing got caught under the brake pedal?

        The whole somebody drives something nicer than me and must be compensating for something else rant gets beat to death around here.

        • 0 avatar
          DeadWeight

          BIGGER-BRASHER-GARISH-BRODOZERISH dos not equal “nicer.”

          There’s a beauty in clean lines, functionality, non-garish, “they didn’t let the lowest common denominator stylists tame over the design studio” method.

          • 0 avatar
            mason

            The problem with your statement is it doesn’t matter whether it’s a pick up truck or a sports car or a luxury car. If it’s NICER than what people own, they have an uncontrollable urge to put it down.

  • avatar
    PrincipalDan

    Needs an “air grabber” instead.

    http://tinyurl.com/jsrtnqb

    I know its the wrong brand but still.

  • avatar

    Holy crap, that’s hideous.

    Use your hand to split the image at the A pillar. Tell me you don’t see two completely different trucks.

  • avatar
    dukeisduke

    Needs more square. How about square wheels? Their stylists really have their heads up their asses.

    Another gripe? In one of their commercials, they brag about active noise cancellation, but a disclaimer tells you it’s only available with the 6.2l V8. And who gives a sh-t about magnetic ride control on a truck?

    • 0 avatar
      derekson

      ” And who gives a sh-t about magnetic ride control on a truck?”

      People who use it as a daily driver?

      Seems like a great way to improve ride without sacrificing capability, unlike the RAM pickups that use rear coil springs to get a decent ride.

      • 0 avatar
        mason

        The coil spring rear is more than capable enough for a 3/4 ton pick up, and returns a good ride empty. A friend has a new 3/4 ton RAM with rear coils and the empty/light loaded ride is noticeably smoother than my 3500 SRW truck with leaf springs. We just ran a 500 mile round trip with an enclosed car hauler behind his truck weighing in at over 10,000 lbs. From the passenger seat the truck felt very stable and handled it well.

    • 0 avatar
      Johnster

      Well, the Mulsanne hasn’t been as reliable as I had hoped. In retrospect I probably should have bought a couple of extras as spares. In the mean while, until my Bentayga comes in…

  • avatar
    Vetteman

    I am a life long GM new car and truck owner and I find this truck hideous to look at and after just getting rid of my 2013 GMC Denali Duramax 2500 that I could not find a competent dealer in northern california that had a decent diesel tech that could fix the continuous stream of warranty problems that took the truck out of service for weeks at a time . My advice if you must own a GM car or truck make sure you have a dealer who has a competent service department that can properly repair a GM cluster F#*#

    • 0 avatar
      dukeisduke

      What problems with the Duramax? I thought the Duramax engines were pretty reliable.

      • 0 avatar
        Hummer

        We’ve had trouble with the exhaust emissions equipment, pump and all of that is hidden deep in the cowl and requires the door and fender to be removed to gain access.

        Engine also has an overbearing torque management system and an unreasonable delay between hitting the accelerator and seeing it respond, it’s downright dangerous to be honest.

      • 0 avatar
        IAhawkeye

        My friend has had to replace the radiator in his Duramax. But he also tuned the living crap out of it, causing it too run hot. Hardly the trucks fault.

        My dad’s Duramax was flawless in his pretty tough usage of it. Maybe he got lucky? Considering how little you hear about Duramax problems especially after the first few years it was offered, I doubt it.

        • 0 avatar
          redmondjp

          With the stock power levels of these modern diesels, combined with less-than-robust design and emission controls, it is not wise nor necessary to tune a modern diesel engine. And you’ll just start blowing up drivetrain parts that much faster as well.

          It’s not like the good-ol’ days (Cummins 12V) when you had an all-iron engine that could easily output additional power reliably with some modifications.

          My mechanic friend works in a bay next to the guy who does diesel truck repairs all day long (cabs come off most of the time). Repair bills in the $5-8K range are common.

  • avatar
    IAhawkeye

    I kinda like it. But it’s absolutely something that only works on that truck right there. Imagine that hood scoop on the Chevy *shudders*

    I mean is it really worse then the big plastic “Mohawk” they have the last gen HD Sierra’s?

  • avatar
    Lou_BC

    I do not like the looks of the Sierra with the 2016 refresh. The functional hood scoop must be for a new intercooler design which hints at an increase in HP/Torque to play the numbers game with Ford and Ram.

  • avatar
    Hummer

    Needs a decent (read Big Block) gas engine, the diesel is expensive and problematic and the gasser wants to throw the engine out of the hood. Driving in the same style with a heavy trailer nets me 4.3 MPG with the gas engine and 14 MPG with the diesel. A Big Block would get much better MPG and pull with ease compared to the small block.

    • 0 avatar
      bball40dtw

      “You get six liters and that’s it!”

      -GM-

    • 0 avatar
      Big Al from Oz

      Hummer,
      Why buy gas?? Who cares about price when the cost of this is huge.

      Real trucks run diesel, gas is for hairdresser types. The ones who only want to look the part and not be the part. How can you be taken seriously when at the lights in a truck without the rattling of an engine?

      I suppose you don’t like trucks, you only like large cars.

      A six litre gas engine in this Sierra is akin to using a little turbo one litre EcoThirst in a Focus.

      • 0 avatar
        Hummer

        Well Al, if you want to pay the $10,000 premium for the diesel engine, pay for DEF fluids every 10k or so miles, pay more for diesel fuel, pay for the inevitable emissions equipment replacement outside warranty, pay for injectors around 150-200k miles, pay for expensive oil changes, etc, be my guest.
        But a simple 8-10L gas engine would take care of all of my towing needs while being cheap to run and cheap to maintain.

        • 0 avatar
          DenverMike

          BAFO has yet to experience the joys of modern, high tech DEF/SCR diesels. OZ diesel pickups are still pre emissions. Once they’re implemented, fuel economy, reliability and longevity will suffer. Take away diesel subsidies, and they’re right where we are, realizing diesels are totally unnecessary, all classes below big rigs.

          I do love the manly, “RAW RAW RAW RAW” clatter diesels produce, as it completes the “I’m a big boy” feel of pickups. I was reluctant, going from diesels to gassers, but was shocked, gas engines do the job just fine, at a much lower, over-all cost.

          • 0 avatar
            redmondjp

            Well-stated!

            I reluctantly have come to the same conclusions, after several years. I can put a good used 460 gasser engine in my pickup for the cost of 2-3 diesel injectors.

          • 0 avatar
            DenverMike

            Been there. About ’00, I spent $1,800 at the dealer for a 460, installed, or the price of 3 diesel injectors. I was diesel dude ’til the end, or so I thought, but this ’97 gasser was almost free, unknown miles, lots of blow-by, slipping trans and tired rear end. Fixed it and had my favorite truck of all time. Too bad it was only an F-350 and I really needed the added productivity of an F-450.

            I gave it a Gear Vendors, shift kit, 4.56 gears, and a few other performance upgrades. 10j mpg, who cares.. Miss that truck!

    • 0 avatar
      mason

      Instead of 4.3 mpg hauling you’d be doing good to get 6-7. An improvement yes, but not enough to ever warrant another engine option. Coming from a guy that has towed with big blocks in the past there simply is no replacement for diesel if your gonna tow.

      For those that only tow occasionally the 6.0 is umm, well it’s sufficient.

  • avatar
    johnhowington

    Must be there for the 1.4T from the Cruze. Nice work GMC.

  • avatar
    redapple

    Manhood extender proof.
    Is it me or am I cra – cra.?
    The average F 250 driver is shorter that the average F 150 driver.

  • avatar
    dartman

    Day-um Stephanie! Nothing gets the ladies of TTAC estrogen flowing like a quickie about a big ol’ ‘Murican truck. The lack of testosterone around here is amazing!…

  • avatar
    redapple

    Just an observation.

    Am I allowed ???

  • avatar
    redapple

    Guys that get mad about comments like mine are height challenged I m sure.

    Relax. It wasnt personal.

  • avatar
    MeaMaximaCulpa

    So a truck with a grill the size of the average New York apartment gets a hood scoop? That must be either som really shoddy engineering, or some really poor styling behind this.

  • avatar
    "scarey"

    I can see this thing lowered, with wide whitewalls, white fur interior, and lots of neon cruising through the projects. SUPERFLY IS BACK !!!!

  • avatar
    LIKE TTAC.COM ON FACEBOOK

    Glass must be very expensive, and steel very cheap, because we’re getting too little window and way too much door. Just like a used car salesman, the beltline is practically up to the armpits.

  • avatar
    ttacgreg

    Just add Truck Nuts, a loud muffler, and a peeing Calvin sticker and it would be perfection!

  • avatar
    SnarkyRichard

    And they say the 50s was the age of GORP ! The truck built for nerds who want to drive around in a cartoonish version of Optimus Prime . Or macho idiots that don’t realize just how redunkously nerdy looking their ride is or how small – well you know how the rest of it goes !

    • 0 avatar
      IAhawkeye

      I’m not even old and I wish they would bring back the GMT800’s yeah they rusted terribly(at least our family’s did) and the inside was cheap cheap plastic. But dang did I love they way they looked.

    • 0 avatar
      LIKE TTAC.COM ON FACEBOOK

      Driving to work this morning, I saw a brand new black Camaro (no plates yet) with a pink trunk, pink hood, Transformers decals and TRANSFORMERS in pink letters across the back. Their pre-teen kid probably loves it. Still, I wonder how long it will take for them to have a change of heart and pay to have it restored to stock condition.

  • avatar

    And the less endowed truck buyers cheered.

  • avatar
    Big Al from Oz

    Bonnet scoops do look good on vehicles with a slightly more aerodynamic shape.

    I don’t understand why large US pickups are not aerodynamic. Producing a shape that slides through the air easier would be cheaper than these gazillion speed transmissions and engines that shut down 4 cylinders, etc.

    I’m glad pickup truck designers are not in the aerospace industry.

    I do believe the little d!ck grilles and pickup shapes must be connected to a person that is appendage challenged.

    • 0 avatar
      DenverMike

      There’s too much wind resistance and turbulence, under, around, in the bed and after abrupt cabs and tailgates. An airplane fuselage would be zero use, only making the pickup longer. There’s nothing you can do to change those features, and it still be a useful, functional pickup, with efficient use of footprint/shadow.

      • 0 avatar
        heavy handle

        Useless trivia of the day: pickups have less drag with the tailgate up.

        That being said, Big Al is just assuming that the shapes aren’t optimized, given the operating requirements. You need lots of cooling for 700+ lb-ft of torque, ground clearance is high, heavy duty suspensions take-up a lot of space, and a tapered bed wouldn’t be practical.

    • 0 avatar
      Drzhivago138

      Way to keep it classy, Al.

  • avatar
    mason

    Just saw one of these at a restaurant I stopped in for lunch. It was parked near the front door, windows rolled up and idling with nobody in it. I came back out after eating and it was still sitting there, and still idling. I’m guessing the owner wanted his air conditioned seats nice n cool when he came out.

    Truck admittedly looked really good but short of hitting the mega I could never see myself owning one. Even then it would not be a GM.

    I ordered my truck with the (cheap) leather as it is easier to keep clean than cloth with the vinyl floor. I use my truck alot and it gets dirty alot, but I still like to keep it as clean as possible. It’s the best combo for a work truck IMO.

  • avatar
    Shiv91

    It’s the 2017 Caprice Brougham!

  • avatar
    DenverMike

    It’s a real sharp looking truck, except for the front. Cheap, poverty spec, “chrome delete” bumper, grill and headlights would be an excellent addition, borrowed from a base Sierra.

    Except Sierras don’t come in a true, poverty spec, bottom feeder, cheapskate pickup. They force all-chrome and hideous cat-eye headlamps, halogen of course, on all trucks.

    • 0 avatar
      SC5door

      “They force all-chrome and hideous cat-eye headlamps, halogen of course, on all trucks.”

      LED Headlamps and foglamps are optional on the Sierra 1500 for 2016 and 2017 for the 2500 & 3500.

      http://www.gmc.com/sierra-1500-pickup-truck.html#Exterior

  • avatar
    LIKE TTAC.COM ON FACEBOOK

    Just wondering… first of all, does the hood scoop actually improve airflow into the engine, or is it just for looks? The air has to go through the ducting and the air filter anyway, and the vacuum from a several hundred horsepower engine is likely to be sufficient to bring in all the air that is needed.
    Assuming the extra oomph is actually helpful, is there more air pressure to push the air in at the front of the hood, or nearer to the base of the windshield?

  • avatar
    Lightspeed

    If the price of oil hadn’t crashed and if Fort Mac hadn’t been burned in the wildfire, you could count on my Alberta brothers to buy up most of these. Having said that, when did we decide we need pickup trucks with as much torque as some highway tractors? Who is hauling 20,000lb on a regular basis?

    • 0 avatar
      Hummer

      As someone that has pulled 15k #s with one of these trucks (2012 duramax) all that torque is more than welcomed, the more torque the better the fuel economy, the less it has to downshift and raise the RPM the less fuel it takes. Plus being able to pull a 8-9k truck and a 10k # trailer from 0-60 in what feels like 12-14 seconds never gets old.

    • 0 avatar
      mason

      Cummins ISB 6.7 – 385HP, 900 lb ft torque.

      Cummins ISX15 – 600 horsepower, 2,050 lb of torque. AND a 7 yr/500,000 mile FACTORY warranty to boot.

      No comparison between PICK UP truck and tractor.

  • avatar
    415s30

    Wow these are hideous. I would go for the diesel Titan.

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