The Tire Pressure Monitor tracks your vehicle's tire pressures and can warn you of pressure loss. If tire pressures are set to a new value, the TPM should be restarted to help ensure the most accurate readings. Watch this video to see how.
Runflat tires can let you drive for up to 50 miles at 50 mph even after a total loss or pressure, helping prevent the need for roadside tire changing. And with no spare to carry around, you get more trunk space.