Air out the car immediately with all doors and windows open
Remove and wash any affected floor mats, seat covers, and blankets
Vacuum the interior thoroughly
Clean hard surfaces with a mixture of warm water and mild soap
Wipe down upholstery and fabric with an upholstery-safe cleaner
Sprinkle baking soda on carpets and seats, let sit, then vacuum
Place activated charcoal or odor absorbers inside the car
Replace the cabin air filter
Clean the air vents with an odor-neutralizing cleaner
Use an enzyme-based odor remover on fabric surfaces
Wash any removable items that were inside the car
Repeat cleaning if the smell remains
Have the car professionally detailed if the odor persists