Just had the transmission serviced a few hundred miles ago. Truck has been running fine. Today while idle in drive through, got the Transmission hot Idle Engine, followed by traction control off, stabilitrak off. Then the Drive position disapeared from the dash. You could no longer see that it was in drive. While trying to get it to a parking spot, the throttle was not responsive. Any ideas? This is the info i was given, i was not driving it at the time. I should have asked the driver to cycle through and check transmission temp. Temp on the dash was normal at 210.