3. Lift the vehicle with the jack, making sure the jackspans at least two of the crossmember ribs (B).For more information, seeDoing Your Own ServiceWork on page 5-3.If a Tire Goes FlatIt’s unusual for a tire to “blow out” while you’re driving,especially if you maintain your tires properly. If airgoes out of a tire, it’s much more likely to leak outslowly. SeeTires on page 5-50 for additionalinformation.Your vehicle, when new, had run-flat tires. This type oftire can operate effectively with no air pressure, soyou won’t need to stop on the side of the road to changea flat tire. You can just keep on driving. The shorterthe distance you drive and the slower the speed,the greater the chance that the run-flat tire will not haveto be replaced. Run-flat tires perform so well withoutany air that a Tire Pressure Monitor (TPM) is usedto alert you if a tire has lost pressure. SeeRun-Flat Tireson page 5-56 andTire Pressure Monitor System onpage 5-58.5-73