It is a common rule that you must provide at least three hours to your tires before checking the tire pressure. This is why it is recommended that you should check your tire pressure in the morning. If it is not possible, park your car in the shade and let the tires cool down. If you are taking your vehicle to a pump to get the tire pressure checked, make sure that you get it to the nearest within one mile; else, the tires will start heating up.