2017 T87 Silverado Calibration Support?

[Doc]

Just had a customer calling in requesting tuning for his 2017 Silverado. He claimed or rather suggested that full support by other vendors is not online yet....Just checking to see if anyone can verify?

Thanks,

Doc

[GMPX]

We don't support them.

[Doc]

Possible future?

[GMPX]

Can't even get a TCM to work on