Final answer:
If a vehicle's directional signals fail, the driver should use hand signals to indicate turns and proceed to a safe location for repair. Continuing to drive without functioning signals is dangerous and typically illegal.
Step-by-step explanation:
If your vehicle's directional signals fail, it's important to take alternative safety measures to communicate with other drivers. You should use hand signals to indicate your intended direction of travel before making turns or changing lanes. Extend your arm straight out through the window for a left turn or out and up for a right turn. In addition to using hand signals, you should proceed to the nearest safe location to troubleshoot and repair the signals as soon as possible. While en route to a repair location, drive cautiously and stay aware of the traffic around you, ensuring you give other drivers ample warning before you make any turns.
It's crucial not to ignore the issue, even if it can seem inconvenient at the time. Operating a vehicle without functioning directional signals can lead to misunderstandings on the road and increase the risk of an accident. Moreover, it's often against the law to drive without working turn signals, so addressing the problem promptly is not only a matter of safety but also of legal compliance.