Category: Technical Service Bulletins

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

GM Investigating HUD Settings Glitch on Nine SUV Models
GM Investigating HUD Settings Glitch on Nine SUV Models
Does your GM SUV forget your head-up display settings every time you shut it off? You are not imagining things, and you are not alone....
GM Ends Mandatory Vehicle-Wide Programming on EVs
GM Ends Mandatory Vehicle-Wide Programming on EVs
General Motors just made a quiet policy change that should mean fewer marathon software update sessions at the dealership for EV owners. Effective July 1,...
GM Flags Fuel Pump Module Short in 2021-2024 Trucks, SUVs
GM Flags Fuel Pump Module Short in 2021-2024 Trucks, SUVs
If your late-model Chevy, GMC, or Cadillac cranks but refuses to fire, the problem might not be your battery, your fuel, or your starter. General...
Animated OEM Tail Lamps Jam Trailer TPMS on Silverado HD / Sierra HD
Animated OEM Tail Lamps Jam Trailer TPMS on Silverado HD / Sierra HD
If you tow with a Chevrolet Silverado HD or GMC Sierra HD, the Trailer Tire Pressure Monitor (TPM) system is one of those features you...
You Can Completely Disable A New Chevy Traverse By Bending The Rear Wiper Arm (No, Seriously)
You Can Completely Disable A New Chevy Traverse By Bending The Rear Wiper Arm (No, Seriously)
Quick Facts: GM Bulletin #26-NA-140 Affected Vehicles: 2024–2026 Chevrolet Traverse, 2024–2026 GMC Acadia, 2025–2026 Buick Enclave Primary Symptom: Complete vehicle “No-Crank / No-Start” condition Diagnostic...
P16A7 & P16AF: The Loose ECM Pin Stalling 2019-2026 GM Trucks
P16A7 & P16AF: The Loose ECM Pin Stalling 2019-2026 GM Trucks
There is nothing more frustrating than jumping in your truck, hitting the ignition, and getting an endless crank with no fire. Or worse, having the...
No Sound in Your Silverado or Sierra? How to Test for the Chevy/GMC Audio Bug
No Sound in Your Silverado or Sierra? How to Test for the Chevy/GMC Audio Bug
Is the audio going silent in your Chevrolet or GMC? We see the posts across our forums: the music drops out, the navigation goes quiet,...
2025-2026 Chevy, GMC & Cadillac Models Hit With Super Cruise Subscription Glitch
2025-2026 Chevy, GMC & Cadillac Models Hit With Super Cruise Subscription Glitch
There is nothing more frustrating than merging onto the highway in your brand new vehicle, only to find out your premium hands-free driving tech is...
Cadillac To Optiq Owners: That Emblem Is Not A Button, Stop Pushing It
Cadillac To Optiq Owners: That Emblem Is Not A Button, Stop Pushing It
If you own a new Cadillac Optiq and find yourself fighting to open the charge port door, you aren’t alone. It turns out GM has...
GM Issues TSB for Service AWD Errors on New Traverse, Acadia, and Enclave Models
GM Issues TSB for Service AWD Errors on New Traverse, Acadia, and Enclave Models
If you recently brought home a brand new General Motors midsize crossover and your dashboard is already lighting up with all-wheel drive errors, take a...
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