2006 300 touring. All lights on instrument panel light up and heater blower stops, headlights go off and then they come on and go off and then everything returns to normal. Happens every now and then. Any idea's what could be causing this. Thanks

 

Go to a dealership and have the trouble codes read, You are likely to find a "Can Bus" performance code stored in TIPM.

I say dealership because independent shops and "Free Scan" auto parts stores are unlikely to have the necessary equipment to extract codes from Non OBD systems.