door locks power lock / unlock works well with cabin temperatures below about 70f degrees above 70 the power unlock doesn't work for three doors only drivers door lock works at any temperature. Obviously an expansion / contraction problem - - suggestions of where to start

70F is commonly considered ambient temperature. You shouldn't have problems at those temps.

Is this a problem with the door panel switch or using the key on the outside of the door?
Have you spilled any liquid on the control panel?
Slammed the door or been in an accident?
Recently install any new audio equipment that required you to pull off the door skin?

Sounds like a loose connection somewhere. But I'm not certain.

both switch and door key act the same (depending on temperature neither works to unlock the other three doors)