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479 6 6-3. Do-it-yourself maintenance Ma nc e and care Replace the tires if the treadwear indica- ■ When to replace your vehicle’s tires Tires should be replaced if: ● The treadwear indicators are showing on a tire. ● You have tire damage such as cuts, splits, cracks deep enough to expose the fabric, and bulges indicating internal damage. ● A tire goes flat repeatedly or cannot be properly repaired due to the size or loca- tion of a cut or other damage. If you are not sure, consult with any author- ized Lexus retailer or Lexus authorized repairer, or any reliable repairer. ■ Tire life Any tire over 6 years old must be checked by a qualified technician even if it has sel- dom or never been used or damage is not obvious. ■ Proper storage of the spare tire (RX350L) As an improperly stored spare tire may cause damage to the wire cable that holds it, check that the spare tire is stored prop- erly on a daily basis. ● If the stored spare tire appears to be slanted or rattles while driving, the spare tire may not be properly stored. Store the spare tire again by performing the follow- ing tire change procedure correctly: 1 If the spare tire is slanted, the hoist assembly may be stuck in the wheel opening. If the spare tire rattles while driving, it may not be fully raised. Lower the spare tire to the ground and make sure that the hoist assembly is perpen- dicular to the wheel opening. 2 Raise the tire slowly and steadily until a click is heard and the jack handle skips. If the spare tire cannot be lowered, the wire cable may be severed. Have the vehicle inspected at any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer. ■ If the tread on snow tires wears down below 4 mm (0.16 in.) The effectiveness of the tires as snow tires is lost. WARNING ■ When inspecting or replacing tires Observe the following precautions to prevent accidents. Failure to do so may cause damage to parts of the drive train as well as danger- ous handling characteristics, which may lead to an accident resulting in death or serious injury. ● Do not mix tires of different makes, models or tread patterns. Also, do not mix tires of remarkably different treadwear. ● Do not use tire sizes other than those recommended by Lexus. ● Do not mix differently constructed tires (radial, bias-belted or bias-ply tires). ● Do not mix summer, all season and snow tires. ● Do not use tires that have been used on another vehicle. Do not use tires if you do not know how they were used previously. ● Vehicles with a compact spare tire: Do not tow if your vehicle has a compact spare tire installed. |