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What to Do When Your Tire Light is On

tire light
tire light

Do you have a tire light on now that it is cold?

It’s the first really cold morning of the season and some of you might notice that your tire pressure light is on. Are you wondering why is it on?

Many newer cars have tire pressure monitoring system (TPMS). TPMS is constantly measuring the inflation in each wheel, when your tire pressure deviates from the recommended tire pressure it causes your TPMS to activate.

Tire Light
Tire Light / TPMS Sensor

Changes in weather can affect your tire pressure.

Tire pressure can decrease 1 PSI (pressure per square inch) for every 10 degrees the temperature drops. When its cold outside the air inside the tire condenses, taking up less space, which causes your TPMS dash light to come on.

Whenever your TPMS light comes on the first thing to check is the air pressure in your tires using a tire pressure gauge. If the pressure is low you need to inflated your tires to your vehicle's recommended PSI. You can find this information on your driver's door panel.

It’s a good idea to keep a tire gauge in your glove box. You may find some air pump stations don’t have a tire gauge on the air pump.  To determine the current PSI remove the tire valve cover and press the tire gauge onto the valve. This will tell you what your tire pressure currently is.

Manufacturer Recommended Tire Pressure
Manufacturer Recommended Tire Pressure
Tire Gauge
Basic Tire Gauge- always keep in your car.
Tire Valve Cover
Tire Valve Cover
Tire Pressure
Tire Pressure

Now you can fill your tires until the pressure corresponds with the recommended tire pressure as indicated in your front door jamb.

If you are unsure what to do visit a reputable vehicle repair shop and they can help you. Or of course you can visit us at Star Auto Sales.

Below is a video we made on this topic we hope it helps.

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