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.

One of GM’s Smallest Recalls Ever: 8 HD Trucks, Wrong PSI
One of GM’s Smallest Recalls Ever: 8 HD Trucks, Wrong PSI
UPDATE, August 21, 2026: When we first published this story, GM was handling the issue as a dealer field action with no NHTSA campaign attached....
Husky Liners Launches $399.99 Lift-Out Freedom Bed Liner
Husky Liners Launches $399.99 Lift-Out Freedom Bed Liner
There’s a new option in the never-ending bed protection debate, and this one splits the difference between a drop-in and a spray-in. Husky Liners, the...
GM Surround Vision Recorder: The Complete Owner’s Guide
GM Surround Vision Recorder: The Complete Owner’s Guide
Owners have been asking for this one for the better part of a decade. Your Tahoe has cameras at every corner. Your Escalade watches the...
GM Flags Fuel Pump Module Short in 2021-2024 Trucks, SUVs
GM Flags Fuel Pump Module Short in 2021-2024 Trucks, SUVs
If your late-model Chevy, GMC, or Cadillac cranks but refuses to fire, the problem might not be your battery, your fuel, or your starter. General...
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,...
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