Designed to recognize and reward dealership technicians for their technical training achievements, the Technician Excellence Program (U.S.) has kicked off enrollment for the 2026 program year. Enrollment takes place through […]
The GM Accessory Rocker Panel Molding Ground Lamps (PN 85155377) may not illuminate after installation on some 2024-2026 Silverado EV and Sierra EV models. (Fig. 3) Fig. 3 The exterior […]
Before replacing the heated steering wheel on some 2021-2022 CT4, CT5; 2022 Enclave, XT5, XT6, Blazer, Silverado 1500 LTD, Silverado 2500HD/3500HD, Tahoe, Suburban, Traverse, Acadia, Sierra 1500 Limited, Sierra 2500HD/3500HD, […]
Some 2022-2025 Silverado 1500, Sierra 1500; 2024-2025 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks may have a bubbling or delaminating condition on the wood trim of the door panel. (Fig. 10) […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar takes a look at how to correct outside door […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the November GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
The Labor Time Group is responsible for warranty repair time studies, accessories and Pre-Delivery Inspections (PDI). Labor time studies are completed for new vehicles as well as new service procedures […]
There may be several audio system conditions on some 2022-2024 Tahoe, Suburban, Yukon; 2022-2025 HUMMER EV; 2022-2026 Silverado 1500, Sierra 1500; 2023 BrightDrop; 2024-2025 Corvette; 2024-2026 Silverado 2500HD/3500HD and Sierra […]
All buttons on one key fob (Remote Keyless Entry transmitter) may be inoperative on some 2023-2026 Escalade, LYRIQ, Corvette, Silverado 1500, Silverado 2500HD/3500HD, Tahoe, Suburban, Sierra 1500, Sierra 2500HD/3500HD, Yukon; […]
The latest CX Connect release includes a number of enhancements and updates that are designed to increase the functionality of the app and make it easier to use. VIN […]
The new SAVI Manager v2.29.0 release provides an update to address USB driver failure. The latest release will correct the issue of the Quectal driver failing to install by automatically […]
GM diagnostic strategy does not support the practice of swapping control modules during the course of diagnosis or to expedite a repair. Features in today’s vehicles are increasingly software configurable. […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar uses the new GE-60503 Thermal Imaging Camera for leak […]
Some 2024-2026 Corvette E-Ray models may have a Service Transmission message displayed on the Driver Information Center along with an illuminated Check Engine MIL. DTCs P1955 (Transmission Fluid Pressure Relief […]
November Service Newsletter from the Experts at GM TAC
Questions About Labor Times?
Stay Updated — IOK Radio Software and Connection Conditions
Key Fob Synchronization
Tips on Identifying Diesel Fuel Contamination
Midtronics Diagnostic Charger DCA-8000P Announced as Essential Tool
Accessing Air Ride Adaptive Suspension Data
Aftermarket Exhaust System Conditions
Lower Case Extension and Oil Pan ComparisonDCA-8000
Troubleshooting
Guide
TAC Newsletter December 2025
TAC Newsletter November 2025
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
All buttons on one key fob (Remote Keyless Entry transmitter) may be inoperative on some 2023-2026 Escalade, LYRIQ, Corvette, Silverado 1500, Silverado 2500HD/3500HD, Tahoe, Suburban, Sierra 1500, Sierra 2500HD/3500HD, Yukon; […]
To avoid wait times for technical support in the dealership, prior to contacting the GM Technical Assistance Center (TAC) and Techline Customer Support Center (TCSC) as well as and other […]
Take a detailed look at a wide range of innovative features and advanced systems found on GM vehicles to gain a better understanding of proper operation. Each short video reviews how a feature works, highlights operating tips and shows ways to customize settings, if applicable.
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