SPS
Problem: It is a 2021 Cadillac CT5, added 2 keys through VCI200 J2534 and Techline Connect SPS2. Remote buttons work but they won’t start the car. Dashboard shows
Tutorial: GM key programming using GM scan tool and SPS (Service Programming System) online subscription. Model example: Chevrolet Tahoe 2016 (the procedure can be applied to other GMs)