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.

GM Recalls 2,700+ Trucks For Airbags That Can Explode While Parked – How To Check Your VIN
GM Recalls 2,700+ Trucks For Airbags That Can Explode While Parked – How To Check Your VIN
If you have a 2018 or 2019 Chevy or GMC truck sitting in your driveway, you need to head over to the NHTSA site and...
Should You Use Engine Fuel Additives In Chevy or GMC? Here’s GM’s Official Statement.
Should You Use Engine Fuel Additives In Chevy or GMC? Here’s GM’s Official Statement.
If you have ever stood in the auto parts store staring at a wall of “tune-ups in a bottle” promising better fuel economy and instant...
The Simple $43 Corvette Mod That’s Driving Silverado & Sierra Owners Crazy
The Simple $43 Corvette Mod That’s Driving Silverado & Sierra Owners Crazy
Truck owners are notorious for finding clever ways to upgrade their rigs with parts from other vehicles. If a part bolts up, looks better, and...
GM Truck Lug Nut Torque Specs: Silverado, Sierra, Tahoe, Yukon, Suburban & Escalade (1999–2026)
GM Truck Lug Nut Torque Specs: Silverado, Sierra, Tahoe, Yukon, Suburban & Escalade (1999–2026)
You came here because you need to torque your wheels, and the answer should be one number. For most of you, it is: 140 lb-ft....
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...
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