[Carl n Susan]

I too would love to know this TSB number. I am on my way home from a visit to the Pacific Northwest and am experiencing a re-gen every 125-150 miles towing the Monty. They don't last long, 12-15 miles, but always seem to occur every time I encounter significant grades. Not great timing as there is a noticeable performance degradation during a re-gen.

I am planning to visit my dealer next week and would like to be prepared. Knowing a TSB would be a good start.