When cold weather is in full effect, vehicles may react differently to the drop in temperature.

Have you noticed that your check tire pressure light has been coming up a lot during the chilly months? Well you’re not alone.

The reasoning behind this is actually quite simple. It is said that for every ten degree drop in temperature, tire pressure decreases 1-2 PSIs. We know that cold shrinks and heat expands, so the cold weather is literally shrinking the air out of your vehicle's tires. This is why your annoying Tire Pressure Monitoring System (TPMS) alert keeps kicking in.

So, in reality your tires may be perfectly fine. Most of the time you see this light during the winter months, it may just be because the cold air is altering the tire pressure. Once you begin driving, the friction caused by the turning of the wheels will generally cause that TPMS light to go off. However, this could be misleading.

It is extremely important to check your tire pressure frequently. Whether it’s with your own gauge at home or at a local gas station, it is important to check the tire pressure at least once a month. The tires should be cold when performing this process.

If you take your vehicle to a mechanic to get the pressure measured, make sure you let your mechanic know that the tire pressure light was on in the morning when it was cold. If you drive your car down to your mechanic’s shop, the tire pressure will rise from where it was in the morning because the tires will heat up.

If you have more questions regarding your tire pressure, make sure to consult an expert.

Categories: Service