Look at this document, might help. Helped me with my 2017 Grand Sport.
2014 Corvette: GM TechLink Article: Power Memory Seat Operation
Thank you for your feedback. I did read that post earlier re the GM Tech Article. Guess I surmised that the dealer would also have access to all current literature. I will pursue with dealer.
I have 2016 and trouble with settings as well. Mine would jump from setting 1 to 2 or vice versa. Problem turned out because I had 2 keys with different settings. When my wife got in the car with her key in her purse it would change my setting.After repeated attempts to set (and retain) seat memory settings (with the dealer of no help), please offer suggestions to correct.