ACDelco Technical Delivery System is General Motors’ service information, diagnostics, and service programming portal to the automotive aftermarket. We share a common goal with you …

Techline Connect application download and launcherLaunch TLC with administrative privileges Launch Techline Connect

If the PC or network is not within the specifications required, you may encounter some issues with Techline Connect (TLC) or there may be some limitations with the support provided by the …

Sep 16, 2025 · MAKE SURE YOU ALLOW POP-UPS AND TRY AGAIN. ALWAYS LAUNCH TECHLINE CONNECT WITH ADMINISTRATIVE PRIVILEGES.

Techline Connect (formerly TIS2Web) is the internet-based subscription service for GM vehicle calibrations, Global Diagnostic System software, and scan tool hardware updates.

Click on the Forgot Password link to use the self-serve password reset feature. You must know your security questions and answers to use this link. Dealer users unable to use the "Forgot …

Techline Connect - Tech 2 Diagnostics: Tech 2 software updates for GM vehicles. Global Diagnostic System 2: PC based diagnostic software for some 2010 and newer GM vehicles. …

GM TechLine Connect is the next generation of dealership software providing an all-in-one diagnostic and programming tool directly from General Motors. It streamlines various services …

Click on the Forgot Password link to use the self-serve password reset feature. You must know your security questions and answers to use this link. Dealer users unable to use the "Forgot …

Techline Connect link in the App Center Connect can be launched without a second log in to the app. The Techline Connect app can be found in the App Center and under the …