Undiagnosable/unrepeatable transmission issue

[Dewi2005]

Hello, I have my 03 H2 in the shop for an issue that I had while on a long x-country road-trip. While driving into a headwind at approx 75 mph for about 3-4 hours, it seemed that my trans lost 4th gear, and 2nd gear.

This would only happen after the 3-4 hours I mentioned, and has not happened again since I returned home.

One thing that now seems to be worse is the crazy annoying downshift on small inclines. I can understand the trans leaving overdrive, but going down to 2nd???

The dealer says they cannot find a code, and obviously cannot duplicate, therfore willnot/canot do anything.

My worries are that the odometer is now at 30k and quickly approaching the 36k warranty limit and 'Murphy's Law' says my transmission will die shortly after the warranty expires and Ill be stuck with the bill!

Any ideas on what I should do, or where I should direct the dealer to research to resolve?

Thanks everyone for any and all assistance on this one.