Cold weather lights flash and wipers come on

I have an 06 Dodge Durango. When the weather is cold, say 30 or below, and the engine is still cold, my lights, inside and out, will turn off and then back on quickly. Also, under the same circumstances, my windshield wipers will come on, back and forth 3 times. Never can tell when these things will happen exactly, just that it happens whe it is cold outside and the car is still cold. Took it to a garage, but they couldn’t find a problem.

The light trouble may be due to a faulty switch or in the power to the switch. The wiper problem might be due to a problem in the BCM module. It should be verified before replacing it though as it is an expensive part.