09 Forester X. The temperature was minus 18C. I drove about a mile from cold. Stopped to go into store to buy newspaper. Restarted car. Direction signals not working and no reading of outside temp or fuel consumption on dash - clock still working. After about 30 seconds signals would work again and temp and fuel reading came back up. 3 days later there has been no repeat of this behaviour. Can anyone make a suggestion on what might have caused this problem?