The video explains how to reset check engine light, and how replacing my gas cap with a Stant gas cap solved the problem when the yellow check engine light stayed on and I was unable to clear check engine light.
This car is a 2014 GMC Terrain.

Video Chapters
0:00 Introduction
0:41 Check engine light stays on
1:04 Check engine light flashing
1:53 Stant gas cap replacement
3:18 Testing
3:39 Check engine light reset procedure
4:21 Attaching gas cap tether