Sure, thermal creep. You will need to have the cruise amp pulled and checked for cold soldered joints. When the amp is warm, ie. above 55, then the intermittent contact is not a problem. When it is cold, the metal will contract and produce open circuits. Of course, having said that, make sure the actuator connector is firmly seated and not corroded..

__________________
Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.