Step 1: Insert the key into the ignition and turn it to the "On" position without starting the engine.
Step 2: Press and hold the "Lock" button on the driver's side door for approximately five seconds.
Step 3: You will hear a beep, indicating that the automatic door locking system has been activated.
Step 4: To verify, open and close any of the doors and check that the doors lock automatically after a few seconds.
Note: Some Peugeot 207 models may have different methods to enable the automatic door locking system. Refer to your vehicle's owner manual for specific instructions for your model.
