I'll chime in that I've had many of these same errors/issues (drive stalk, radar, reg brake assist etc). I had a tech out for an unrelated issue and mentioned the frequent errors (it happens every few days). He hooked up his computer to check things out and quickly pointed to a software issue...
Yes! I've been told some security/communications error is occurring. A small percentage of vehicles are impacted. It is a known bug, and they are working on fixing it. I'm unsure if they will roll out a patch before the next regular update. You did all the right things, but it doesn't seem...
Put a custom order in for a DM Max w/ blackout, dynamic roof and ocean coast in June.
Sales called last week trying to match me with something similar. I randomly found one in the shop (minus the dynamic roof) and grabbed it. They refunded my $1k custom order deposit. Overall a smooth process.
6/8 I Picked R1S from the shop
6/9 Guide said it is wrapping up production in Normal and expect it to deliver in a few weeks to Brooklyn SC
6/10 SC out of Capital Heights reached out and scheduled a home delivery
6/20 - Tentative date of Delivery
If they hit that delivery date, that would be 12...