How do I clean the seat cover and harness?

Machine wash soft goods (headrest pad, seat pad, head pillow, body pillow, harness covers, and Quick Clean Covers) separately in cold water on a delicate cycle with no chlorine bleach, then tumble dry for 10–15 minutes on low heat and remove immediately. The harness can be wiped clean with mild soap and water and allowed to air dry — do not immerse the harness, buckle, or LATCH/UAS connectors in water. Plastic and metal parts may be wiped with mild soap and water and dried with a soft cloth; do not use abrasive cleaners or solvents. (Page 113)