Cold weather causes tire pressure to drop, which can trigger your car's Tire Pressure Monitoring System (TPMS) light.
Tires lose about 1 PSI for every 10-degree Fahrenheit drop in temperature. When the air inside your tires cools, it contracts, leading to lower pressure. If this drop causes the pressure to fall below the minimum threshold set by your vehicle's TPMS, the warning light will illuminate.
This information is for general guidance; always consult your vehicle's owner's manual for specific recommendations.
Why does my TPMS light come on in the morning but go off later?
The light appears when the tires are coldest, usually in the morning. As you drive, the tires warm up from friction, increasing the air pressure inside. This rise in pressure can be enough to bring the tires back above the TPMS warning threshold, turning the light off.