I have had my CT (white diamond with ivory interior EX-L AWD) since early September and it's been troublefree. Suddenly yesterday I started having a strange problem. When I driving along, the dome light suddenly goes on for maybe 30 seconds and the driver's door clunks (presumably, the lock solenoid actuating). It happens when I turn or when I go straight. Sometimes it happens every couple of minutes , other times it will only happen once during a 20-minute drive. I'll be taking the car to the dealer about it, but wondered if anyone else has experienced such a situation?