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.

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...
GM Storing Unfinished Trucks In Muddy Field, Moving Them With Forklifts & Bulldozers
GM Storing Unfinished Trucks In Muddy Field, Moving Them With Forklifts & Bulldozers
Photos have emerged that show how GM is storing unfinished Silverado HD and Sierra HD pickups in muddy fields and allegedly moving them with a...
New 2023 Silverado HD & Sierra HD Photographed Without Grille Coverings
New 2023 Silverado HD & Sierra HD Photographed Without Grille Coverings
The redesigned 2023 Silverado HD and Sierra HD are continuing their development and inching closer to being production-ready. Over the weekend, a pair of camouflaged...
Refreshed 2023 GMC Sierra HD Prototype Caught With Production Headlights
Refreshed 2023 GMC Sierra HD Prototype Caught With Production Headlights
We’ve captured a 2023 GMC Sierra HD prototype undergoing testing with what appears to be production-ready headlights- giving us the best look yet at what...
The Ongoing Chip Shortage Just Added HD Radio To Its List of Victims
The Ongoing Chip Shortage Just Added HD Radio To Its List of Victims
Earlier this month, we reported that General Motors would be producing certain full-size pickup trucks and SUVs without stop-start technology. The fuel saving feature relies...
Interesting 2023 GMC Sierra HD AT4/Denali Prototype Photographed
Interesting 2023 GMC Sierra HD AT4/Denali Prototype Photographed
Spy photography of the refreshed 2023 GMC Sierra HD has been captured once again. This time, the truck captured is an interesting mix of trim...
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