At4 6.2 Engine Temp Light

[Fast_AT4]

Light came on switched to transmission temp display, seemed to go from 143 - 156 max. Let cool, checked coolant and was above min but below max. Heating and AC proper. Started it up and took it around the block for a few laps and then let sit idle (giving it a little gas here and there) and seemed to normalize at 153. No CEL or any data on GMc app. Drives/idles as expected. Anything else to check and/or keep an eye on?

 

[Fless]

Are you talking about engine temp or tranny temp? Engine uses coolant; tranny uses tranny fluid.

 

[Fast_AT4]

Are you talking about engine temp or tranny temp? Engine uses coolant; tranny uses tranny fluid.

Figured the tranny temp would be an indicator of the engine temp. Shouldnt a CEL been thrown for a engine temp light coming on?