Well, it happened to me after everything was going so well....
Walked outside this morning about 0450 and started the Jeep after unplugging the block heater. Outside temp was 18F. Cranked right up, but with a new addition to the menu. "Service Electronic Throttle Control" and check engine light. 872 miles on the odo.
I sat there pondering my options and reviewed the previous thread on this topic. Wound up trying to restart a few times. No bueno. Went into reverse just fine, but the only forward gear that I could achieve was 3rd.
Parked it and called roadside assistance, they came and picked it up about 0730. I called the dealership to let them know that it was inbound. I haven't purchased the MaxCare yet (I got a quote from Ziegler yesterday, a little irony there) but the dealership went ahead and got me a rental with no prompting whatsoever. We have purchased multiple vehicles from them due to their good sales and service, so I have no fears on that end.
I'll let you guys know what codes it threw and the resolution of the issue. I suspect that it will be similar to the other gent's issue with the DEF heater relay or a wiring harness issue.
And there I was bragging to my wife about how nice a vehicle it is
I'm sure it'll all get sorted out.