I had the Yukon towed to my dealer. They have not looked at it yet. My reason for asking the question is that I will feel more comfortable with some thoughts in hand when I hear the response from the dealer. Having read quite a few online comments about similar situations that have turned into recurring nightmares, I fear having the car stop again when I have my Wife and handicapped adult child in the car. I hope that the problem can be fixed.
This was the first time this car has suddenly stopped. The battery still provided power but the car would not even turn over the starter or do anything but cause a small sound under the dash near the passenger side.
The Yukon has 77K miles and has always run well. However, the check engine light comes on from time-to-time without apparently affecting the performance. When I had that checked at the dealer before, they replaced a oxygen sensor on the exhaust and the check engine light came back on within days.