Start with the part of the vehicle you want to improve. If the cabin has become the problem, describe the seats, carpets, mats, pet hair, odors, or areas where spills and buildup are most noticeable. If it is the exterior, mention whether you are dealing with dusty paint, neglected wheels, road film, dull trim, bug residue, or a vehicle that has not had a proper clean in a while. A simple description helps the team point you toward the right starting service.
Photos can help when there is a particular concern, especially with upholstery stains, heavier pet hair, cloudy headlights, or paint imperfections. They do not replace seeing the vehicle, but they make the first conversation clearer and help avoid a quote that is too vague to be useful. You do not need perfect photos, just an honest look at the areas you want addressed.
It also helps to say how you use the car. A daily commuter, family SUV, work truck, weekend vehicle, and car being prepared for sale all have different priorities. A detail should leave you with a result that fits the reason you booked, whether that is a cleaner place to spend time, a more presentable exterior, or a fuller reset before the next chapter for the vehicle.