To clean the interior of your Honda Civic Hybrid, start by removing any loose debris and trash. Use a vacuum cleaner with appropriate attachments to thoroughly clean the carpets, seats, and floor mats. For fabric upholstery, use a mild cleaner specifically formulated for automotive interiors. For leather or vinyl surfaces, use a leather cleaner or conditioner. Wipe down hard surfaces with a damp cloth and use a glass cleaner for windows and mirrors.