There are two limitations on the per-vehicle programming. The subscription expires based on whichever of the following occurs first: 1. 24 Months. 2. The number of programming equals the number of programmable modules in the vehicle.
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. Also available for Medium Duty Vehicles. A Light Duty subscription is required to activate the Medium Duty Purchase option.
