Follow the below steps:

1) Pre Rinse
Using a hose, rinse the whole wrap with clean water. This helps remove the loose dirt particles and helps avoid scratching the graphics.

2) Wash
Gently wash the vehicle with a mild soapy water solution using a soft cloth or a synthetic or natural sponge. Start from the top of the vehicle and work down. Avoid abrading the surface with unnecessary scrubbing.

3) Rinse
Rinse thoroughly with clean water.

4) Dry
Let the wrap dry naturally. To avoid water spotting, use a silicone squeegee to remove water then finish drying with a micro-fiber or soft, non-abrasive towel.