1. Take note of any damage. It doesn't hurt to take quick photos of your car and any existing damage. 2. Turn off all alarm systems. 3. Remove personal belongings and any decorative items which are removable (i.e. spoiler,mirrors, fog lights). 4. Secure all items that you are leaving in the car. 5. Lower or remove antennas. 6. Make a list of all secured items you have on/inside car so that you can quickly check your list upon pickup. 7. Be sure to clean out your vehicle as well as possible. 8. Using your car as a moving container (i.e. packing it with household items, is not permitted). 9. If your car is in working condition*, ensure that there is adequate antifreeze and gas, and that your battery is charged.

https://AutoTransportationUSA.com/car-transport-checklist.htm