Issue with Carrier update in shipment

Hi Experts

I am trying to create TD Shipment and the vehicle is already configured and Carrier is also present, however when I check the vehical Tab the carrier didnt get populated .

Checked the Vehicle Master data , the Carrier part is freezed , how shall I check whether this carrier is assigned to Vehicle or not .How shall I populate the carrier automatically once I enter the Vehicle no in TD shipment  .

Screenshot attached .

Thanks in advance

MM_sD