2003 Lexus SC 430 User Guide - Page 266

IN CASE OF AN EMERGENCY CAUTION D When lowering the vehicle, make sure all portions of your body and all other persons around will not be injured as the vehicle is lowered to the ground. D Have the wheel nuts tightened by torque wrench at 103 N·m (10.5 kgf·m, 76 ft·lbf.), as soon as possible after changing wheels. Otherwise, the nuts may loosen and the wheels may fall off, which could cause a serious accident. 40sa36 8. Lower the vehicle completely and tighten the wheel nuts. Turn the jack handle counterclockwise to lower the vehicle. Use only the wheel nut wrench to tighten the nuts. Do not use other tools or any additional leverage other than your hands, such as a hammer, pipe or your foot. Make sure the wrench is securely engaged over the nut. Tighten each nut a little at a time in the order shown. Repeat the process until all the nuts are tight. 248