In order to create a Loan Car - you would need to create a vehicle - follow these steps before being able to create a vehicle.
https://learnsystime.auxosoftware.com/en/support/solutions/articles/51000204239-how-to-create-a-new-vehicle-record-in-crm
Once a vehicle is created ensure the status of this vehicle is S- Vehicle in Stock
Now you have created the vehicle in CRM, you will need to connect this to a loan car in Point of Sale.
Select "Create Vehicle"
Locate vehicle created ensure - vehicle type is Courtesy and Loan car group selected H and Active. Once saved this can be used.
TIP: Check filters and location if unable to see loan vehicles.
Common issue - is trying to close booking on old bookings. Solution: Check the vehicle in and then out again.