When you turn your vehicle on, does the tire pressure indicator constantly ping on? Have you become accustomed to hearing the chime of low air pressure accompany the start of your vehicle? You are not alone. It happens to people all around the country. But why does your tire pressure light keep coming on? And if it turns off again automatically, do you need to fill your tires?

Temperature Affects Air Pressure in Tires

When temperature changes occur, the rubber your tires are made of may expand or contract. In the cold, the rubber contracts, which can temporarily cause air to leave your tires. In Arizona, both you and I know the temperatures can drop a good amount. There might be a difference of 30 or more degrees between the middle of the night and the middle of the day. This shift in temperature can cause the drop in air pressure, which in turn causes your tire pressure lights to pop on.

When to Put More Air in Your Tires

The warm daytime temperatures may cause air to expand, but warming alone isn’t going to reinflate your tires. If your light pops on in the morning chill, put more air in your tires. Check the pressure again around midday if you’re worried about overinflating, but more likely than not you’ll be in a safe range.

As temperatures continue to drop, you might encounter this issue more than once. It’s just one of those things that happens, especially if you have warmer weather tires. Winter tires are better prepared to handle the cold, so there will not be this kind of air pressure loss. However, driving winter tires in warm, dry weather isn’t recommended, since it causes the tires to wear down faster due to their softer treads.

If you’re interested in new tires or would like to know how best to correct the persistent tire pressure monitor in your vehicle, visit the team at Phoenix Tire.