Category: Technical Service Bulletins

Access critical Technical Service Bulletins for GM Trucks: expert diagnostics, solutions, and updates. Your resource for vehicle maintenance.

Good News: Your Chevy Colorado’s Leaking Radiator Isn’t Broken. Bad News: The Fix is on Backorder.
Good News: Your Chevy Colorado’s Leaking Radiator Isn’t Broken. Bad News: The Fix is on Backorder.
If you own a third-generation Chevrolet Colorado or GMC Canyon and have noticed your coolant levels dropping, you aren’t alone. After months of owners discussing...
The “Crank No Start” Glitch Plaguing GM V8 Engines
The “Crank No Start” Glitch Plaguing GM V8 Engines
Nothing is more frustrating than climbing into your rig, hitting the ignition, and getting a whole lot of nothing. If your truck is throwing a...
GM Had to Issue a Memo Because You Keep Getting Coins Stuck in Your Window Switches
GM Had to Issue a Memo Because You Keep Getting Coins Stuck in Your Window Switches
General Motors has officially issued a Technical Service Bulletin because far too many owners are getting spare change stuck in their window switches and completely...
What To Do If Your Silverado’s Engine Won’t Shut Off: Inside GM’s Weird New TSB
What To Do If Your Silverado’s Engine Won’t Shut Off: Inside GM’s Weird New TSB
Imagine pulling into your driveway, putting your truck in park, and hitting the ignition button to turn it off. Instead of peace and quiet, the...
Adding a Factory Trailer Brake Controller to a Silverado or Sierra: The Official Answer
Adding a Factory Trailer Brake Controller to a Silverado or Sierra: The Official Answer
You finally found the perfect truck on the dealership lot, but you realize it is missing one crucial towing feature. If you are currently asking...
Why Your Chevy or GMC Lights Flash When You Walk Up (It’s Not an Electrical Bug)
Why Your Chevy or GMC Lights Flash When You Walk Up (It’s Not an Electrical Bug)
If you’ve ever walked up to your Chevrolet Silverado or GMC Sierra and noticed the headlights or taillights quickly flashing at you, it can certainly...
The 255-Press Secret to Fixing Your Dead GM Key Fob
The 255-Press Secret to Fixing Your Dead GM Key Fob
You changed the battery, but your GM vehicle still won’t unlock. The passive entry works perfectly when you pull the handle, and the engine starts...
The Tiny Sensor Causing Big Problems on 2021-2025 GM Full-Size SUVs
The Tiny Sensor Causing Big Problems on 2021-2025 GM Full-Size SUVs
It’s a classic automotive mismatch: a stationary wire and a rapidly spinning drivetrain component. When the two meet, the spinning metal usually wins, and the...
Why Your Newer Silverado HD Headlights Are Randomly Quitting (And GM’s Fix)
Why Your Newer Silverado HD Headlights Are Randomly Quitting (And GM’s Fix)
Having your exterior lights randomly stop working is never a fun experience—especially when you’re relying on a heavy-duty rig after dark. If you own a...
Missing Camera Grid Lines? GM Details Fix for Silverado and Sierra Surround Vision Issues
Missing Camera Grid Lines? GM Details Fix for Silverado and Sierra Surround Vision Issues
GM’s Surround Vision Camera system is easily one of the most useful features on modern trucks. Whether you’re trying to perfectly align a trailer hitch...
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