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2024 GMC Sierra TurboMax Engine Gets Longer Warranty

For the 2024 model year of the GMC Sierra 1500, the turbocharged 2.7L I4 L3B gasoline engine was given the TurboMax nomenclature in an effort to brand the boosted four-pot. Now, General Motors has extended the TurboMax’s warranty for properly equipped units of the 2024 GMC Sierra 1500.

Designed to highlight GM’s confidence behind the engineering and design 2.7L L3B engine, The General is extending the TurboMax’s powertrain warranty from five years/60,000 miles to five years/100,000 miles, as indicated in the 2024 GMC Limited Warranty and Owner Assistance Information booklet.

It’s worth noting that this update makes the TurboMax’s warranty 40,000 miles longer than those of its competitors, and matches the 3.0L I6 LZ0 turbodiesel Duramax engine’s warranty coverage as well.

“As we’ve said before, we engineered TurboMax to deliver the durability and performance expected by our truck customers,” Assistant Chief Engineer Kevin Luchansky was quoted as saying. “The result continues to turn skeptics into believers with best-in-class 430 pound-feet of torque and 310 horsepower. The whole team is proud of this engine, and this warranty extension exudes our confidence.”

For those who may be unaware, the 2.7L L3B is offered as the starting powerplant option for the 2024 GMC Sierra 1500. Available on Pro, SLE, and Elevation trim levels, the TurboMax is intended to cover owners’ needs. Only offered in the High Output tune, the boosted four-banger develops a maximum output of 310 horsepower and 430 pound-feet of torque, along with an available maximum tow rating of 9,500 pounds.

Other engine options for the 2024 GMC Sierra include the naturally aspirated 5.3L V8 L84 gasoline engine, rated at 355 horsepower and 383 pound-feet of torque, the naturally aspirated 6.2L V8 L87 gasoline engine, rated at 420 horsepower and 460 pound-feet of torque, and the 3.0L I6 LZ0 turbodiesel Duramax, rated at 305 horsepower and 495 pound-feet of torque.

Notably, the 2.7L L3B develops more torque than the 5.3L L84, making the latter powerplant largely obsolete.

Photo of 2024 GMC Sierra logo.

Production of the 2024 GMC Sierra 1500 is now under way at the GM Fort Wayne plant in Indiana and the GM Silao plant in Mexico.

Subscribe to GM Authority for more GMC Sierra newsGMC news, GM powertrain news, and around-the-clock GM news coverage.

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As a typical Florida Man, Trey is a certified GM nutjob who's obsessed with anything and everything Corvette-related.

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Comments

  1. They upped it to what all power train warranties should be. Do they expect a noble prize? What’s next they remove the language in their warranties that says design flaws are out of scope and they make their customers right that bought their bad designs? I guess they would want sainthood for that.

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  2. I know the Titan is finished after this model year, but it has always had a 5 year, 100 thousand mile powertrain warranty

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    1. And still couldn’t sell them, just sayin.

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      1. they were/are butt ugly like everything toyota makes, turdra is hideous

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  3. All GM drivetrains were 5 years/100k miles until recently. GM claimed that they got rid of them because people rarely used them and they were not necessary. LOL. Now that’s fiction!

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    1. I wish GM would offer a warranty that has a longer time frame. I could care less about a hundred thousand mile warranty. I only drive about 6,000 miles a year. So at the 5 year point my warranty expires with my vehicle having approximately 30 thousand miles.

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    2. UAW lol

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  4. I will likely buy the 3.0 Duramax because of the extended warranty. Does it include the transmission and rear end also like it used to?

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  5. GM is not the company they were before bankruptcy. They don’t value loyal customers like they used to. After over 50 years of driving GM vehicles, I’m done.

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  6. The author states:

    “Notably, the 2.7L L3B develops more torque than the 5.3L L84, making the latter powerplant largely obsolete.”

    Is this guy for real? The 5.3L will run circles around this engine. It has a 45 HP advantage and 4 more cylinders for less stress/work!! Come on man, know what you are talking about before spewing propaganda to try and upsell this motor!!

    I have nothing against this new motor either, but don’t try to compare it to a 5.3L proven engine, that “YOU” think is obsolete….SMFH

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    1. 5.3L? 5.3 & 6.0 class action lawsuit. Oil pressure, misfire, lifters, cams. GM left me hanging with 67k one-owner miles. 5th new Denali purchased. Last one had 67k miles, same notorious problems. P0307 misfire, lifter noise, low/no oil pressure. Dealer quoted “could be as high as $9300”. (probably only need one lifter) GM wouldn’t help b/c vehicle was over on time. All maintenance always done at GM dealers. Faulty design, defective engine since new. GM Knew it & wouldn’t help. Done with GM forever. Besides, new Denali’s are $100k and now made in Mexico instead of Janesville, WI. The new Toyota I’m buying is at least assembled in Indiana, same size as new Denali, awd, tows over 5000 lbs (all I need) , 36mpg. costs $35k less than new Denali. GM’s refusal to help caused me to wake up and stop being such a dedicated sucker to GM.

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      1. Engine failure is because 0 viscosity on 0w 20 really means no viscosity as startup. I hate to think that a bottle of Lucas oil treatment is the solution since I don’t use the product. But I have seen people use Lucas to thicken their 0w 20 oil on 4 and 8 cylinder engines. I know one RAV4 Still going strong at 200,000 with it. So maybe that is one solution to those failing GM V8 engines is to move back to 5 -30 and forget about that 1 mpg they are saving with the low viscosity oil.

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        1. I had a 2018 Silverado until recently. I pulled a 5,000 pound travel trailer all over the Rocky Mountain West-up 7,000 foot passes regularly with the motor running 0W/20W-with zero issues.
          It’s not the motor oil if there are issues….

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      2. Change your oil at 40-50% and turn that deactivation crap off and 90% of the lifter problems will go away.

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        1. You are right. At 50% engine oil life you are right at 5000 miles on some vehicles. Some people I know have are convinced that mobil 1 means 10,000 mile intervals. What is this world coming to.

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        2. I always change at 5000 miles even with full synthetic oil. Engines are expensive, oil is cheap.

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      3. ggmeade,

        Not sure where to start. You don’t buy new yet talk about 5 new Denali’s (you have no idea the abuse that was done before, neglect and improper care are the biggest reasons for lifter failures). The Denali isn’t 100k in half ton model that you are driving. You are past the warranty by far and wants them to cover? It isn’t a faulty design, most don’t have an issue (the failure rate is in the low single digit with the millions they make a year and many of those are neglect/improper maintenance.

        So you are American proud it seems as you talk about assembled location yet you buy a Toyota where all the money goes back to Japan. I don’t think you understand how corporations work…

        Anything Toyota makes that gets 36 mpg isn’t the same size as the Denali (with a 5.3 or 6.2 is has to be a Sequioa or Tundra). So do you just make up stuff to try and strengthen your point or do you just not know and fail to do research?

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        1. Abuse?? This vehicle is my wife’s baby. It’s kept in a heated garage. I’ve always had all maintenance done at GM dealerships by “factory trained techs” (who, by the way, made numerous blunders such as over-filling the oil by 1 to 1.5 quarts a number of times, had to return many time b/c they couldn’t rotate the tires to the correct position, had a brake inspection & said brakes were ok and a month later rear brakes were both grinding metal to metal, they left the lug nuts loose which caused damage and towing, also, forgot to tighten the straps on the front driveshaft after service operation requiring a tow back to the dealership, etc. etc.) Once a year I would tow my 17′ fishing boat a few hundred miles to a resort and back and then it went back to normal operation which is suburban driving by my wife driving to work 6 miles each way, to the grocery store and church. Waxed and polished twice a year. All I was looking for was some consideration, some assistance, asking GM to pay some percentage of the repair bill since these 5.3 and 6.0 DOD engines were notorious for oil pressure and lifter issues – hoping for 50-50 but would have settled for less. GM would not authorize any help up front whatsoever. Having been a corporate business owner and corporate manager of retail businesses overseeing hundreds of employees I’d say I have a pretty good knowledge of how corporations work. A muscle car and and drag race enthusiast from the 60’s, I’ve torn down and modified many engines – Mopars and Chevys. This engine was a defective design since new and I just felt after my long, dedicated history of buying GM vehicles, they could show me a little respect and help out. Toyota is employing thousands of well-paid hard working Americans in our country and that money gets spent here. GM is no longer dedicated to America or its customers. If they don’t wake up and mend their ways, they’ll be begging for another bail-out. I’m done.

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        2. Oh look it is lacks commonsense

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      4. So then why are you still here ?

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      5. Ditto. My 2021 Sierra failed at 50k. Lifters and camshaft. They fixed it and extended the PT warranto to 110k. I still love the power of the 6.2 though

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    2. I had a 2020 5.3 with the 10 speed for 3 years. Currently in a 2023 with the 2.7L. Having owned both, the 5.3 absolutely does NOT run circles around it. I get better MPG both while towing my 7400lb travel trailer, and also while not towing, and the down low torque is straight up impressive. It’s quite easy to point out comments from someone who has never drove one.

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      1. Good to know.

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    3. TNT, yes he is for real. The 2.7 out performs the 5.3 in 90% of the situations. It drives better on the daily, tows at low speeds, get better mpg and is nearly as fast. No propaganda, just facts. Sure is hard getting that stuff across the old school V8 or nothing crowd, what are you going to do in two generations when the V8 is dead? It already is with Dodge and Toyota, Ford won’t be far behind…

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      1. Dodge is the leader in V-8 Power
        TRX, Challenger, Charger, 1500-Hemi, 2500 Hemi, Demon etc

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  7. Nice post Bob P, but why did the thumbs up I pressed on ZERO out the nu,ber count? Must be another way for GM to not get the real totals of what their readers are posting! Tomg

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  8. I just keep wondering what drives GM to do stupid things as to make the Colorado and Canyon a one shoe fit all. The interior is hideous with straight lines of hard plastic and circular vents. The gauges are tiny and mediocre with lines and not numbers giving the temperatures. The display is tiny also compared to the center entertainment center display. The rear seating is still too cramped up. Not much better than the outgoing model. It can’t even get out of the way of a train because of the turbo lag. Not like my 2004 5.3. So front bumper is hard plastic. No remote start and driving safety features. No sensors to unlock the doors without using the remote. No AC plug in the bed. I can go and on. The design team and leader really screwed this model up. I feel so bad to what they are doing to the GM brand. It is completely absurd, disrespectful and inconsiderate to loyal GM buyers.

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  9. They are doing the 100,000 mile warranty to try to get people to buy them, no one wants a 4 cylinder in a full size truck! They say the towing is 9,500 pounds is that just 1 time, you can’t do it every day and expect that motor to last!

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    1. It is selling well, well reviewed and tested. Went up the ike with 7k on the hitch in a perfect time and that motor was noted as being on of the hardest to kill in durability and torture testing. This isn’t a ploy to sell what isn’t selling, it is a tactic to get others to try and and see as this is the direction all manufacturers are going. This might entice someone to just test it and they will be surprised…

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      1. If it was selling well they wouldn’t have rebranded it as TurboMax & extended the warranty.
        Seriously get some real common sense.

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  10. Mike.. that’s is my also my thought. GM is frightened I am sure with the new models from Toyota and Ford midsize trucks rolling out. Ford has a four banger with good mpg and two strong excellent V6 engines. Toyota has all of the features of A Lexus built into a truck. What to do? TRD Pro and Raptor vs ZR2 with a 4 banger? Oh! but GM’s truck looks better. Yes it does. Nice looking. I myself am considering buying the new trax and just adding a trailer to the hitch. Serves the same purpose for less money and better fuel economy.

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    1. The Tacoma I believe wil also only have a four banger option. 🤦🏼‍♂️

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      1. Yet it will offer a Hybrid max option that gets 40% better fuel economy than GMs 2.7 Turbo & offer more power/torque.

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  11. I feel like I might have written this. Spot on!

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  12. I think it’s great that you have some options when it comes to 1/2 ton engines. When I bought my ’23 Sierra Elevation in July, my dealer had Elevation’s with each engine option (5.3L, 3.0L Diesel, 2.7L Turbo). They had some SLT’s with the 6.2L as well. The one that had everything that I wanted had the 5.3L in it…after about 1800 miles, I am not disappointed.

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  13. What good is an engine if you can’t keep a transmission in it. My 2017 Sierra 1500 transmission went out at 110k miles. Not a.work truck. Cost me 8k to get a new.one in it. I have to drive it for another 6 years to get my money out of it

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  14. I wouldn’t have a problem with a 2.7 4 cylinder, It’s the 8 speed transmission that lives behind it that I can’t accept.

    Reply
  15. I really like this “GM Authority” site. It speaks about product improvements, product defects, and comparisons about other brands as well, and I believe, it is the only one of the big three that actually discusses issues, problems, and improvements about their products. In addition, I have not seen GM say anything detrimental of any other manufacturers products on this site. I have been driving Chevy Trucks since 1973 with a ’73 Blazer; a ’77 Blazer; an ’87 S-10 Blazer; an ’87 Suburban [254K] ’90 Blazer; a ’95 Blazer; an 03 Silverado [that clocked over 300k on a 4.8 liter] and a 13 Silverado with 247K 5.3 which I still own and drive daily. I’m still waiting to own a “bad” Chevrolet or any other GM product, for that matter, that I have owned throughout the years. I’ve also owned an F-150, Explorer and a Ranger. None of which were worth a crap. 3 strikes Ford, and you are out, but, I gave them 3 chances. I’ve had a Subaru, and Dodges each with their own problems, as well. It is interesting to note, that all of you who really hate GM are reading the articles on this site in the first place. And when you reply, it is just your opportunity to bash GM for whatever they do never giving them any credit for anything they do. Did you ever think that maybe some of these new innovations may be great products? And guess what? They actually publish your comments good or bad. A woman actually wrote and mentioned that GM should have a class action lawsuit posed on GM because her door handle on her Silverado broke after 13 years. Really?!! And another indicating a class action lawsuit stating his transmission failed after 185, 000 miles. For some of you, GM could offer you a bumper to bumper warranty FOREVER and you still would not be satisfied. All manufacturers have their issues, including the Almighty Ford and Japanese brands as well. ALL OF THEM. Can you just imagine how many millions of 5.3 engines have been made and still on the road. And keep in mind, that GM also sells more trucks that any other manufacturer. Yup, according to you GM haters, they are all a “defective design.” Sorry Ford lovers, look at the figures.
    Granted, I, too, would be upset if I had some of the major problems many of you have encountered, but I have not had that issue yet. Some of which can be traced to poor maintenance; I’m not stating that all of the issues are because of that but many are. And sometimes the dealer themselves can be a detriment rather than a help. My question remains: If you hate GM that much, why are you on this site?

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    1. BTW, Jim, this is GM Authority and not General Motors. The only person directly connected to General Motors is the dude who calls himself Commonsense. GM has nothing else to do with this site, so if people bash GM, they don’t edit their comment. I HAVE seen times when a person or two claim to have been edited, but if so, perhaps it was done by GM Authority.

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  16. Jim,We, as a collective group, who spend millions of dollars to first hand test GM products, use this platform to give positive criticism. And that means that if a new old model doesn’t suit us, then we are obligated to complain in the name of GM loyal customers. So yes their trucks and cars have been sucking of lately.

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  17. Lets just bring back the old reliable 283. Great milage and bullet proof.

    Reply

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