Quote Originally Posted by Ellwein Engines View Post
... I see that from the GM Tech line and using my VIN there is HMI and Radio software for backup camera, (even though the factory did not install it)...
The GM Techline is a telephone number, that connects you to a service representative. I think you are referring to the VIN / CVN database from the TIS2WEB service website.

However the vehicle is currently programmed, is the only way that a GM dealer can program it. There is often optional programming available, but this requires the staff at the GM Techline to update or "release" this programming.

Not all hardware "updates" require a programming change. The rearview camera may or may not require a programming change - have never done one.

It is highly doubtful the EFILive will ever offer a J2534 pass through device - there are many of these already on the market.