Has anyone come to a solution on this issue? My 2014 TH just started with all of these symtoms after no issues in the past whatsoever. Currently have 76k on the odometer. Started noticing the blower alternating from low to high on a trip back from Mammoth and now it slowly cycles off completely after running for 10-15 minutes or so. Like others in the thread have mentioned, when it's running its cold air but then slowly shuts down.