Thanks for the response B&W, and drat!!
Expensive repair. I'm out of manufacturer's warranty. But, I do have an extended warranty. I guess I'll have to call them. Likely to be told that it isn't covered.
The light wasn't on today. As I said, it is intermittent.
And, I've got 900+ miles of road trip coming up beginning the end of next week.

Now I'm forced to reconsider. Argggg.