Final answer:
When passing a vehicle, you should not turn on your high beams at night before you start to pass; doing so can blind the driver of the vehicle being passed as well as oncoming drivers. Instead, use low beams and follow the other safety steps outlined in the driver's manual.
Step-by-step explanation:
When passing another vehicle on the road, it is important to follow safety guidelines as suggested by the driver's manual. The correct steps typically include ensuring you have adequate space to pass, using your indicators to signal your intention to pass, and checking your mirrors and blind spots before and during the maneuver. Among the options provided:
- Lightly tapping your horn may be suggested in some situations to alert the vehicle you are passing.
- Turning on your high beams before you start to pass at night is not recommended, as this can blind the driver of the vehicle you are passing as well as oncoming traffic.
- Driving carefully to avoid a crash is always recommended when passing or in any driving situation.
- Assuming the other driver does not see you is a good practice for defensive driving, ensuring you remain vigilant and prepared for sudden movements.
Therefore, the action that is not recommended when passing a vehicle is option 2: At night, turn on your high beams before you start to pass and leave them on until you've completely passed the vehicle.