Personal items removed
Personal items removed means the car is empty of belongings the contract does not allow. Loose objects, a child seat, and a roof box can all violate that rule. They are not covered just because the car is on the truck.
Carriers ask for an empty car so nothing becomes a projectile, nothing walks away, and the height and weight match the quote. A child seat is still an item. A roof box or a bike rack changes the height and can stop the car from fitting the trailer. Floor mats the contract allows are a different conversation from a trunk full of boxes.
What to do the day before
Read the personal-items line. Take documents, electronics, and anything you cannot afford to lose. Photograph the empty cabin. If the contract allows a small amount, list it on the bill of lading. Do not assume cargo insurance on the vehicle pays for contents. Policies commonly exclude them.
How it differs from a household move
A household-goods shipment is built to carry your belongings, with its own rules. An auto-transport load is built to carry the car. Mixing them is how a claim gets denied. RideShipper does not pack the car and does not insure what you leave in it.