The GM Service Guy

Google Gemini in GM Vehicles: What It Is, Which Cars Have It & How to Set It Up GM made a major move in April 2026 — rolling out Google...

Chevy Silverado & GMC Sierra Towing Capacity by Year, Engine & Trim (Complete Guide) Towing capacity is one of the first things Silverado and Sierra buyers check — and one...

GM AFM/DFM Lifter Failure: Symptoms, Causes & What To Do If you own a GM or Chevrolet truck or SUV with a 5.3L or 6.2L V8, you've probably heard of...

OnStar Not Working? Common Causes & Fixes for GM Vehicles OnStar is one of GM's most valued features — but when it stops working, it can be a real headache....

Best Oil for Chevrolet Silverado 5.3L: What GM Actually Recommends The 5.3L V8 EcoTec3 is the heart of millions of Silverados on the road today — and keeping it healthy...

How Long Do GM Transmissions Last? (And How to Make Yours Last Longer) If you're buying a used GM truck or SUV — or you've got a higher-mileage vehicle and...

GM Check Engine Light Codes: Most Common & What They Mean The Check Engine Light (CEL) is the most misunderstood warning on any GM or Chevrolet dashboard. It can mean...

Chevy Silverado Won't Start — Common Causes & How to Fix It Nothing's more frustrating than climbing into your Silverado and getting nothing — or a click, or a crank...