What action should follow pulling up the handbrake?

After pulling up the handbrake, switching off the engine is the appropriate action to take. This is important for several reasons. First, turning off the engine reduces fuel consumption and prevents unnecessary emissions, which is beneficial for the environment. Second, it enhances safety by ensuring that the vehicle cannot accidentally roll away, particularly if it is parked on an incline.

In a broader context of vehicle operation, it is essential to follow proper safety protocols. The handbrake serves as a secondary measure to secure the vehicle when parked, and combining this with shutting off the engine establishes a habit of prioritizing safety before leaving the vehicle.

Closing the doors, opening windows, or starting the engine do not directly follow the action of pulling the handbrake in a logical sequence for securing the vehicle and preparing to exit. These actions may be relevant in different circumstances but do not form the next step in this specific situation.