Believe it or not it’s a known problem for that model. https://m.carcomplaints.com/Chevrolet/Trax/2016/accessories-interior/clock_doesnt_keep_correct_time.shtml It’s mentioned on Trax forums too. https://www.traxforum.com/threads/time-is-continualy-incorrect.5178/ You’re probably beyond the warranty period so you can either live with it (cheap) or have a car stereo place replace the head unit (not cheap).