Remove all trash, ash, and cigarette butts
Take out floor mats and clean them separately
Vacuum seats, carpets, headliner, and crevices thoroughly
Wash or replace cabin air filters
Open all doors and windows to air out the vehicle
Use an odor-neutralizing spray designed for smoke
Clean hard surfaces with an interior-safe cleaner
Shampoo fabric seats and carpets
Steam clean upholstery and carpets if needed
Wipe down vents, dashboard, door panels, and cup holders
Clean the trunk and any storage compartments
Use an ozone treatment if the smell remains
Place activated charcoal or odor absorbers inside the vehicle
Replace heavily smoke-damaged upholstery or carpeting
Repeat cleaning as needed until the odor is gone