How do I clean the buckle and harness straps of the SnugRide 35 Lite LX?

For the buckle, place it in a cup of warm water and gently agitate while pressing the red button several times—do not submerge the harness webbing or use soaps and lubricants. Shake out excess water and allow to air dry completely before use. For harness straps, spot clean only or have them replaced if they have cuts, fraying, or are badly twisted. Never immerse harness straps in water or iron them.