One problem related to wiring has been reported for the 2013 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Toyota Corolla based on all problems reported for the 2013 Corolla.
When I am driving the vehicle the radio/navigation system turns off without warning and restarts in about 10 seconds. This happens a couple of times a day. The radio/navigation also freezes and you have to turn the car off and back on to unfreeze it. It does this on all type of roads, smooth or rough, straight or curved. Took car to the dealer several times and they say its a known problem and they are waiting for a fix from Toyota USA. After the third complaint they said they replaced the head unit and in a week the problem returned. I suspect its a problem in the wiring harness.