The tire pressure light came on solid, indicating low pressure and not a malfunction with the system. I've looked at the prius in the garage and can't see any tires that are low. We've been driving with the pressure as is from the dealer. I find it a little suspicious that this happens when the weather has turned quite cold, in the low 30's and lower sometimes. If I check my tire pressure and add any required air, will the pressure light go out on it's own?