RogerR

My mechanic recommended pulling over, putting it into park with the Air off and let it idle. You may also open the hood which may help airflow.

The really important thing is the transmission fluid may be damaged if you went over temp. I would have it changed immediately. Fluid costs a lot less than a tranny rebuild!

On my Jeep Liberty diesel they recommend turning off overdrive if there are frequent downshifts as that puts a lot of heat and strain on the transmission. You may have the same problems in extended stop and go traffic.