Final answer:
The final step before moving a vehicle after starting it is to check that the transmission is in the correct gear, safety measures like seat belts are secured, and that one's surroundings are clear for safe movement.
Step-by-step explanation:
The last action in the vehicle starting procedure, before moving the vehicle, is to ensure that the vehicle's transmission is in the correct gear (for automatic transmissions this is often 'Park' or 'Neutral', and for manual transmissions, the neutral position with the parking brake engaged).
After starting the engine, drivers should check that all safety measures are in place, such as seat belts being fastened and that the mirrors and seats are properly adjusted for visibility and comfort. Finally, the driver should survey their surroundings to ensure it is safe to move the vehicle.