The GM Service Guy

Why Is My GMC Losing Power? Causes & How to Fix It A noticeable loss of power — whether it's sluggish acceleration, a sudden drop while driving, or reduced power...

How to Fix GMC Limp Mode Limp mode (sometimes called limp home mode) is a protective state your GMC's computer activates when it detects a fault serious enough to risk...

How to Fix a GMC Key Fob That's Not Recognized There's an important difference between a fob that's unresponsive (no functions work) and one that the vehicle simply doesn't recognize...

How to Fix a GMC Key Fob That's Not Working A key fob that's completely stopped responding to any button press is worth troubleshooting in a specific order, since the...

How to Do a Hard Reboot on Your GMC Infotainment System When a soft reset (holding the power/volume knob) doesn't clear a persistent infotainment glitch, a hard reboot — fully...

How to Fix a GMC Cooling Fan That's Not Working Your engine cooling fan kicks in when the engine gets hot enough (or when the AC is running) to pull...

How to Fix a GMC Remote Fob That's Not Working When your fob's remote functions — lock, unlock, remote start — stop responding, the cause is usually simpler than a...

How to Fix GMC Fuse Box Problems A single non-working accessory, light, or system on your GMC is very often traced back to a single blown fuse, and knowing how...