2003 Lexus GX 470 Maintenance Schedule 3 - Page 8

E X P L A N AT I O N OF MAINTENANCE ITEMS M A I N T E N A N C E Rack and Pinion Assembly Timing Belt Inspect the rack and pinion assembly or steering gear box for signs of leakage. If you discover any leakage, have it repaired immediately by a qualified technician. Road Test Replace every 90,000 miles or 72 months. A qualified technician should perform this operation. Tire Rotation While driving the vehicle, check for proper operation of engine, transmission, brakes and steering. Also check for abnormal noise or vibration from any part of the vehicle. Spark Plugs Tires should be rotated according to the instructions in your Owner's Manual. When rotating tires, check for damage and uneven wear. Transmission, Transfer Case and Differential Oil Install new plugs of the same type as originally equipped. A qualified technician should perform this operation. Steering Linkage and Boots Check for correct fluid/oil level and inspect each component for signs of leakage. If you discover any leakage, have it repaired by a qualified technician immediately. For correct fluid/oil, refer to your Owner's Manual. Wheel Bearing and Drive Shaft Bushing Grease With the vehicle stopped, check for excessive freeplay in the steering wheel. Inspect the linkage for bending and damage and the dust boots for deterioration, cracks and damage. Replace any damaged parts. A qualified technician should perform these operations. Repack the wheel bearings with wheel bearing grease and the front drive shaft bushings with molybdenumdisulfide lithium-base chassis grease. A qualified technician should perform these operations. 89 M a i n t e n a n c e L o g s