Category: Sierra 3500HD

Category: Sierra 3500HD

Discover the ultimate in toughness with GMC Sierra 3500HD: expert reviews, news, and tips for the heavy-duty truck community.

You Can Now Supercharge your Silverado or Sierra HD

Procharger

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 or Sierra 2500HD/3500HD can bolt on a 150-horsepower gain in the comfort of their garage. Procharger L8T 6.6L V8 Supercharger Specs Procharger is offering the kit for enthusiasts to install… Continue reading You Can Now Supercharge your Silverado or Sierra HD

GM Upfitter Auxiliary Switch Photo Courtesy Zac Rister

Auxiliary Switch

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 something peculiar about your optional upfitter auxiliary switches. You know, those handy little switches on the instrument panel that control your auxiliary equipment? Well, it turns out, there’s a small… Continue reading Fix: Auxiliary Switches May Not Illuminate Properly on 2023/2024 Silverado & Sierra

GM Connected Owners Apps Go Haywire - Recommend Hilariously High Tire Pressures

OnStar

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 owners that the tires in their vehicles are “critically low” and instead are suggesting comically and dangerously high recommended pressures. Update: 9/8/23: After reaching out to General Motors, GM-Trucks.com received… Continue reading GM Connected Owners Apps Go Haywire – Recommend Hilariously High Tire Pressures

Under The Radar, GM Invests In DMAX Facility Expansion

DMAX

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 Ohio. You’d be forgiven if you can’t keep up with all of the money GM is investing these days. Even we’re finding it challenging.  The company has recently announced upgrades… Continue reading Under The Radar, GM Invests In DMAX Facility Expansion