The installer will begin downloading the full core package. This includes GDS2 component files, MDI drivers, and security certificates.
Windows 10 Professional (64-bit) or Windows 11 Professional.
Q: How do I update GM Techline Connect software? A: The software will automatically notify you of any updates, and you can update the software by following the on-screen instructions.
If you are a home mechanic without access to a paid subscription, there is no legal free alternative that offers programming. For basic code reading, you can use a generic OBD2 scanner, but you cannot reprogram modules or perform SPS functions.
If Techline Connect does not see your VCI, open the MDI Manager software locally on your PC to update the firmware of your hardware unit manually.
The software is useless without the hardware interface. GM uses the or the newer MDI 2 .
Log into ACDelco TDS and navigate to the subscriptions page. You must purchase a subscription based on your needs:
Once logged in, navigate to the or Service Information / Diagnostics tab.
Access to comprehensive repair manuals, wiring diagrams, and technical service bulletins (TSBs).