Which of the following actions is NOT recommended if your vehicle is stalled on a busy road?

Keeping the vehicle in gear is not recommended when your vehicle is stalled on a busy road because it can pose several dangers. When a vehicle is in gear, it is still engaged with the engine, which means that if the vehicle accidentally moves due to a rolling condition or a driver accidentally releasing the clutch, it could lead to an accident.

Using hazard lights is important as it alerts other drivers to your presence and situation, helping to prevent collisions. Attempting to flag down passing drivers can also be dangerous, as it requires you to be outside your vehicle and exposes you to traffic. Calling for help is always a prudent option to safely resolve your situation without putting yourself or others at risk. Keeping the vehicle in gear does not offer any safety benefits in a stalled situation and could increase the chances of a dangerous incident.