When should you not turn off the ignition while experiencing a jammed gas pedal?

When experiencing a jammed gas pedal, the correct choice is to avoid turning off the ignition to prevent locking the steering wheel. This is crucial because many modern vehicles have a steering system that relies on power, typically provided by the engine's operation. Turning off the engine not only stops the power steering but can also result in the steering wheel becoming much harder to turn, making it extremely challenging to maneuver the vehicle safely.

Maintaining control is vital in a situation where sudden power loss could lead to difficulty in steering, especially at higher speeds. Thus, keeping the ignition on allows the driver to retain steering control while seeking a safe way to stop the vehicle, such as shifting to neutral. This strategy ensures that the driver can steer the car away from danger and avoid potential collisions. The other options do not address the immediate concern of vehicle control in an emergency situation, which underscores why maintaining the ability to steer is the most critical factor.