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I've been towing my #3500 car with tools etc. in a 24' enclosed trailer with 2008 Escalade.Last time out trans temps were rising to the 210-215 range in stop and go highway construction traffic.At one point when accelerating from stopped the engine was up to 4000 rpm and trans wouldn't shift.I hit the tow mode button off and it shifted.I put it back in tow mode and had no more issues there or returning home but I'm concerned. Vehicle has only 11,000 miles but fluid smells slightly burned.Called the dealer to schedule having the fluid and filter pm'd for peace of mind and they laughed because of the low mileage and new Detron VI fluid 100,000 mile interval.Any suggestions?