Don’t be surprised if your vehicle’s  Tire Pressure Monitoring System (TPMS) light comes on as winter weather arrives in earnest and the temperatures outside turn truly frigid. Most modern-day passenger-vehicle tires are supposed to be inflated to around 32 psi (pounds per square inch), but that pressure drops by roughly 1 psi for every 10-degree … Continue reading Cold Snap: Why Your Tire Pressure Warning Light Is On