How do I clean and maintain this child restraint?

Plastic and metal parts can be wiped clean with mild soap and water and dried with a soft cloth—do not use abrasive cleaners or solvents. The harness can be wiped clean with mild soap and water and air dried. The seat pad can be machine washed in cold water on delicate cycle and tumble dried 10 to 15 minutes on low heat. Never lubricate the LATCH connectors or buckle unless rinsing is permitted.