TechLink

TCSC Top Issues This Week

The Techline Customer Support Center (TCSC) is available to help dealerships with diagnostic and programming issues related to Techline Connect (TLC) and the Service Programming System (SPS). TCSC has now […]

December 18, 2025 —

Enroll Today in the 2026 Technician Excellence Program

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 […]

December 16, 2025 —

Verify Vehicle Settings After Rocker Panel Ground Lamps Installation

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 […]

December 16, 2025 —

Heated Steering Wheel Replacement

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, […]

December 16, 2025 —

Door Panel Wood Trim Condition

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) […]

December 16, 2025 —

GM Service Know-How Emerging Issues

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 […]

December 16, 2025 —

November Service Newsletter from the Experts at GM TAC

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 […]

November 30, 2025 —

Questions About Labor Times?
Answers to the Latest FAQs in Service Information

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 […]

November 26, 2025 —

Stay Updated — IOK Radio Software and Connection Conditions

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 […]

November 26, 2025 —

Key Fob Synchronization

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; […]

November 26, 2025 —

CX Connect Features Updated in Latest Release

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 […]

November 19, 2025 —

New SAVI Manager Release Updates USB Driver

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 […]

November 19, 2025 —

Do Not Swap Control Modules

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. […]

November 19, 2025 —

GM Service Know-How Emerging Issues

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 […]

November 19, 2025 —