The manual states to press and release the set button and then immediately press 1 or 2 until it beeps to retain the setting - try pressing and releasing the set button and not holding it simultaneously. Hope this helps.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Stingray Corvette Forum
We’re a forum community dedicated the Corvette Stingray. Come join the discussion on performance modifications, accessories, purchasing, maintenance and more!