Category: GMC Sierra HD

The definitive resource for GMC Sierra 2500HD and 3500HD owners. From breaking news and hands-on reviews to technical breakdowns of the 6.6L Duramax and Allison transmission, we cover the entire heavy-duty lineup. Whether you are maximizing your fifth-wheel towing capacity, researching Denali Ultimate features, or troubleshooting a service code, find the expert insights you need to keep your Sierra HD working hard.

The UAW Strike Is About To Get Far Worse For General Motors: Day Four Update
The UAW Strike Is About To Get Far Worse For General Motors: Day Four Update
The automotive sector is navigating through turbulent waters as the UAW strike unfolds, impacting the Big Three—General Motors, Ford, and Stellantis. This situation presents a...
2024 Silverado HD & Sierra HD Facing Steering Shaft Recall
2024 Silverado HD & Sierra HD Facing Steering Shaft Recall
General Motors is recalling 3,893 2024 Silverado HD and GMC Sierra HD pickups due to an improperly heat-treated steering shaft. The defective part may crack...
You Can Now Supercharge your Silverado or Sierra HD
You Can Now Supercharge your Silverado or Sierra HD
Procharger is letting Silverado and Sierra HD pickup owners in on the supercharging fun. Now, anyone with a (L8T) 6.6L Gasoline engine in their Silverado...
Fix: Auxiliary Switches May Not Illuminate Properly on 2023/2024 Silverado & Sierra
Fix: Auxiliary Switches May Not Illuminate Properly on 2023/2024 Silverado & Sierra
If you’re the proud owner of a 2023 Silverado 1500, Sierra 1500, or the 2024 Silverado 2500/3500 and Sierra 2500/3500 models, you might have noticed...
GM Connected Owners Apps Go Haywire – Recommend Hilariously High Tire Pressures
GM Connected Owners Apps Go Haywire – Recommend Hilariously High Tire Pressures
Something funky and hilarious is going on inside General Motors OnStar-powered connected owners apps. myGMC, myChevrolet and possibly myBuick and myCadillac, have errantly started alerting...
Under The Radar, GM Invests In DMAX Facility Expansion
Under The Radar, GM Invests In DMAX Facility Expansion
General Motors is making an under-the-radar investment in it’s Duramax Engine facility that will ensure the next-generation HD Diesel engine continues to be manufactured in...
GM Will Invest $1 Billion To Upgrade Flint For Next Gen HD Trucks
GM Will Invest $1 Billion To Upgrade Flint For Next Gen HD Trucks
General Motors is investing $ 1 billion into its Flint Assembly Plant and Metal Shop to produce next-generation Heavy-Duty Pickup Trucks. The company announced a...
Sure Looks Like The 2024 GMC Sierra HD AT4X Is A Thing
Sure Looks Like The 2024 GMC Sierra HD AT4X Is A Thing
The updated 2024 GMC Sierra HD will come in an off-road focused AT4X trim level if this prototype is any indicator. 2024 GMC Sierra HD...
Stop Sale Order Lifted On Silverado HD & Sierra HD With Duramax Diesel Issues
Stop Sale Order Lifted On Silverado HD & Sierra HD With Duramax Diesel Issues
The recent stop-sale order that covered 3,500 Duramax diesel pickups has been lifted and the vehicles can once again be sold. Yesterday, April 26th, GM...
First Look: 2024 GMC Sierra HD Interior Keeps Surprising Feature
First Look: 2024 GMC Sierra HD Interior Keeps Surprising Feature
The 2024 GMC Sierra HD is slated for a makeover similar to its smaller version, the Sierra 1500. The biggest question is, “Will the HD...
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