Mostly with Shuttle Parking this isn't necessary since you have the option to park yourself and make your way to the terminal by bus. Therefore, the parking provider doesn't necessarily need your keys. In some instances they may ask for your keys in case they wish to make more space in the car park and organise it better. They will not drive your car unless it is completely necessary and they will store your keys in a safe until your return. It can also be more secure due to fire safety. On our website Manchesterairportparking24.co.uk, it is always stated whether you have to hand over the keys or not in the comparison overview of each parking provider.