Engine light + 14 new codes after full 6L80 rebuild - 2017 Silverado 1500 Z71

[AFournier]

Just had a full rebuild on a 2017 - they took a 2016 core and swapped out with my 2017 6L80. They gave it the works - shift kit, billet torque converter, new TECHM, etc.Now have 14 engine codes (saw mechanic plug computer in). I don't know what the codes are. Just wondering if anyone has any experience or insight - ie. is the ECM fried? What could cause so many codes to go off? They let me drive it home and want me to drive for a few hours and bring it back in but I'm wondering if anyone has any other advice. Thanks if advance.

[64BAwagon]

Personally I wouldnt drive it anywhere but back to the shop that rebuilt it and not a foot more. Obviously there are issues and many of these types of things can wipe out a perfectly good trans. It looks like they may have skipped a step in learning the new trans to the truck. 

[newdude]

Did the shop bother to program the TECHM?  Because that requires programming.  

[AFournier]

1 hour ago, newdude said:

Did the shop bother to program the TECHM?  Because that requires programming.  

Yessir they had to replace the TECHM and have a programmer who came in the shop to program it.

[It's Tim]

2 hours ago, 64BAwagon said:

Personally I wouldnt drive it anywhere but back to the shop that rebuilt it and not a foot more.