 The inside of a parked car can reach fatally hot temperatures within minutes, even on a 70-degree day. Every 10 days, a child dies from heat stroke in a hot parked car. Put your wallet or phone in the back seat as a reminder. Call 911 if you see a child alone in a car. 911, what is your emergency? Never leave a child in a parked car, not even for a minute. Parking safety matters. A message from the International Parking Institute.