How do i transfer my season parking to a temporary vehicle if my car is in the workshop?

Step 1: Log-in to "My HDBPage" using your Singpass from this link https://services2.hdb.gov.sg/webapp/SX05AWSPCP/SX05PSPCPLogin.jsp

Step 2: On the left menu click on "My Vehicle" then "Season Parking"

Step 3: Click on "Temporary Season Parking" then "Application for Temporary Change of Vehicle"

Step 4: Input details and confirm.