New here;
Hi all. So the other day my 2020 2500 Sierra decided to start acting up. My service esc, 4WD, Parking brake and TCM lit up.
Then I got the message of reduced power to protect the vehicle!. Low and behold, after trying some different tactics decided to play with the remote starter fob and VOILA.. Truck issues all better. The morning my problems started, I had remote started the truck with the FOB and it ran the full cycle; before I actually started to leave for work! So when it shut off, it went into a funky chicken Valet mode or something and messed the computer.
P.S. I have one minor annoying issue still. If someone could help me, I would be grateful!
My Parking brake goes on automatically when I shift to PARK. Anyone know how to reset that feature?
Cheers,
JO