What does it mean when your car says tire pressure low?
Low pressure could result from a leak or simply from the tendency of a tire to lose about a pound of air pressure every month, as well as a pound for every 10-degree drop in temperature. Once the tires are properly inflated, the light may go off after you’ve driven a few miles.
Why do you think the low tire pressure light comes on in a car on a cold day?
It’s not due to air escaping, but rather the air inside the tire condenses, taking up less space when it’s cold. This is what triggers the sensing transmitters inside your tires to illuminate your TPMS dash light. Whenever your TPMS light comes on, have your air checked and bring your tires up to the proper pressure.
What causes a low tire pressure warning light?
1. “Low Tire Pressure” Warning Light If the low tire pressure warning light is on in your vehicle—the warning light with the icon of a tire with an exclamation point in the middle—the most likely cause is low tire pressure. This warning light could be caused by any of these:
What to do if your tire pressure is low?
To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information. Please try again later. Next step in the process is to press the located button for three seconds. Once the light blinks for three times on the dashboard, this means the TPMS is reset.
Why does my tire pressure go down when it’s cold?
Conversely, if you last checked the tires on a warm fall day and they were fine, a sudden cold spell can make the tire pressure too low (low enough to signal the ECU). The tire pressure drops by about 1 psi for every 10 degrees F the temperature drops, since cold air takes up less space than warm.
What happens if your tire pressure is below 25%?
If your tire pressure is below 25 % of the recommended pressure, the lights will illuminate. Cold weather may compromise the tire pressure. As you take a short drive, the tires may heat up and restore the pressure. Suppose you end the above step and nothing happens, proceed to step two.