One problem related to transmission shudder has been reported for the 2017 Chevrolet Silverado. The most recently reported issues are listed below.
Transmission shudder at speed. Hard shifts at slow speed. Appears to be well documented across this site and other forums. It appears the oil used in the transmissions was defective (per chevy) . TSB - 16-na-175 and TSB 18-na-355. Hopefully adding to the long list of complaints helps get chevy to issue a "recall" or something similar to resolve the issue with the flush procedures or similar fixes.