Your Tire Pressure Monitoring System warning light goes off when a tire is 25 percent under inflated. If your recommended pressure is 32 psi, 25 percent below means you are at 24 psi; which is severely under inflated. At that low pressure, your safety is at risk, your fuel economy is hurt, and your tire is wearing out too fast. Check your pressure at least once a month.
Wheel balance weights can fall off and cause vibrations. When this happens you need to get the wheel rebalanced. It’s estimated that 70,000 tons of lead weights are lost each year worldwide. Many states are banning the use of lead wheel balance weights for environmental reasons. Alternate materials such as zinc are now being used.