GM Diagnostic/Programming (TIS2Web)

To maximize your shop's potential, you need cutting-edge diagnostic technology. ACDelco's Techline Information System (TIS) provides the essential tools and insight necessary in our ever-changing automotive service industry.

TIS2Web is the Internet-based subscription service for GM vehicle calibrations, Global Diagnostic System software and Tech2 diagnostic software updates. Trust ACDelco to empower your techs and bring your repairs to life. With over 100 years experience, ACDelco is one of the most qualified and committed champions of automotive service technicians

  • Speed service repairs and control costs with TIS2Web – designed to support and grow any size business
  • Save time when you diagnose GM vehicles quickly and accurately
  • Improve profits by bringing diagnostics and repair in-house
  • Access trained experts for time-sensitive diagnostic questions and concerns

TIS2Web Subscriptions

Subscription options are available for diagnostics and programming. Click the "Subscribe To TIS2Web Now" on the right side of this screen to access the ACDelco Technical Delivery System Website. Once in the ACDelco Technical Delivery System Website, click "Service and Programming Information" to view subscription options.

Note: Click the "Which Diagnostic Scan Tool To Use" link on the right side of the screen to assist with determining what diagnostic subscription is needed.


For questions, please call 888.212.8959, Monday through Friday, 8:00 a.m. to 8:00 p.m. EST.