My 2024 GMC HD AEVtruck has been at the dealership for the last 3 weeks. I had the left rear blinker not working, but only when the headlights were on. The Field Engineer has been out on 2 separate occasions. Replaced headlights, taillights and BCM. Checked all connections and grounds.
I’m beyond frustrated to be without my $105k truck with no idea if/when I’ll get it back. “They’ve never seen this before”, even though I sent them this link.
I’ll keep you posted.