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.

What a Reddit Thread Reveals About the Fascinating Psychology of GMC versus Chevrolet
What a Reddit Thread Reveals About the Fascinating Psychology of GMC versus Chevrolet
Why do buyers choose a GMC over a Chevrolet? Although the Silverado outsells its Sierra brother by a large margin, those who buy each brand...
No Sound in Your Silverado or Sierra? How to Test for the Chevy/GMC Audio Bug
No Sound in Your Silverado or Sierra? How to Test for the Chevy/GMC Audio Bug
Is the audio going silent in your Chevrolet or GMC? We see the posts across our forums: the music drops out, the navigation goes quiet,...
Inside GM’s 1-Billion Mile Super Cruise Record: Our 5,300-Mile Real-World Test.
Inside GM’s 1-Billion Mile Super Cruise Record: Our 5,300-Mile Real-World Test.
General Motors just crossed a massive technological milestone… and honestly, you’re welcome, GM. As of this week, drivers have officially logged 1 billion hands-free miles...
GM Says Burning 1 Quart of Oil Every 2,000 Miles is Normal. Owners Disagree.
GM Says Burning 1 Quart of Oil Every 2,000 Miles is Normal. Owners Disagree.
If you have ever pulled the dipstick on your Chevrolet or GMC truck and noticed the oil level sitting a little lower than expected, you...
GM Would Like Everyone to Stop Panicking About Ticking V8 Engines
GM Would Like Everyone to Stop Panicking About Ticking V8 Engines
General Motors has a message for modern truck and SUV owners: that ticking sound coming from your V8 engine is completely normal, so stop asking...
The Great GM Truck Oil Debate: Should You Actually Trust Your Oil Life Monitor?
The Great GM Truck Oil Debate: Should You Actually Trust Your Oil Life Monitor?
If you want to start a fiery debate in a room full of modern Chevrolet Silverado and GMC Sierra owners, you do not need to...
American Made: 27 Million Trucks Built at Fort Wayne and Flint
American Made: 27 Million Trucks Built at Fort Wayne and Flint
March 2026 is officially a month for the history books at General Motors, Chevrolet & GMC. Recently, two of the most important manufacturing plants in...
“Service Forward Collision” on a Silverado or Sierra? Try Cleaning the Glass, Dummy.
“Service Forward Collision” on a Silverado or Sierra? Try Cleaning the Glass, Dummy.
Imagine the sinking feeling: you are driving your late-model, high-tech Chevrolet Silverado or GMC Sierra, and suddenly the dashboard lights up with a “Service Front...
The “Crank No Start” Glitch Plaguing GM V8 Engines
The “Crank No Start” Glitch Plaguing GM V8 Engines
Nothing is more frustrating than climbing into your rig, hitting the ignition, and getting a whole lot of nothing. If your truck is throwing a...
GM is Recalling Almost Every 2026 Model (But Probably Not Yours)
GM is Recalling Almost Every 2026 Model (But Probably Not Yours)
What if General Motors just woke up one day and decided to recall every single model they make all at once? If you look at...
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