Category: Technical Service Bulletins

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

Traverse, Acadia, Enclave Stuck in 1st: GM Has the Fix
Traverse, Acadia, Enclave Stuck in 1st: GM Has the Fix
Picture this: you’re rolling onto a highway on-ramp in your Chevrolet Traverse, foot in the throttle, and the engine climbs toward redline while the transmission...
Chevy/GMC Bulletin Blames Spilled Coffee for Stuck Shifters
Chevy/GMC Bulletin Blames Spilled Coffee for Stuck Shifters
Got a shifter button that feels stuck on your Silverado, Sierra, or Hummer EV? Maybe a check engine light to go with it? Before you...
The 8-Speed Shudder Saga Takes Another Turn
The 8-Speed Shudder Saga Takes Another Turn
The infamous 8-speed shudder is back in the service bay spotlight. General Motors has issued a new preliminary information bulletin, PIP6127, dated July 2026, that...
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,...
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