2006 Lexus RX 400h Owners Manual - Page 678

E X P L A N AT I O N OF MAINTENANCE ITEMS M A I N T E N A N C E Nuts and Bolts on Chassis Road Test Retighten the seat mounting bolts and front/rear suspension member retaining bolts to specified torque. Rack and Pinion Assembly Inspect the rack and pinion assembly for damage and loose electrical connections. Tighten connections and if you discover any damage, have it repaired immediately by a qualified technician. Rear Differential Fluid 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 Replace every 120,000 miles. Install new plugs of the same type as originally equipped. A qualified technician should perform this operation. Steering Linkage and Boots Check level and condition of fluid and inspect the rear differential assembly case for signs of leakage at indicated intervals. (The rear electric motor/generator does not require periodic maintenance.) Any service that requires inspecting or replacing transmission/front differential fluid should be performed by a qualified technician following procedures in Lexus service and repair publications. Please refer to the important safety precautions found on the inside front cover of this booklet. 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. Timing Belt Replace every 108 months or 90,000 miles. A qualified technician should perform this operation. 71 S c h e d u l e d M a i n t e n a n c e L o g