The GM Service Guy

Battery dead every morning even though the vehicle ran fine the night before? Here's how to find what's draining it while you're not driving.

Phone won't pair, calls keep dropping, or audio cuts out mid-song? Here's how to work through the most common causes on GM's infotainment systems.

Random inputs, phantom touches, or a screen that's gone completely black — GM infotainment failures are almost always the touch layer, not the computer underneath. Here's how to fix it.

A clunk over bumps is easy to dismiss until it isn't. Here's how to tell a worn strut mount from a failing sway bar link before either one gets worse.

A rhythmic clicking that only happens while turning is one of the most reliable diagnostic signs in the business. Here's what's wearing out and what it costs to fix.

A humming noise that changes when you weave the wheel is the classic wheel bearing symptom. Here's how to confirm it, and why waiting makes the repair more dangerous, not...

Magnetic Ride Control gives the Corvette and Camaro adaptive damping without traditional adjustable shocks — but its magnetorheological fluid and sensors have their own failure points.

Nearly 800,000 Silverado and Sierra trucks were recalled for a power steering assist fault tied to a voltage drop, not a fluid or pump problem. Here's what owners need to...