Which of the following indicates that a vehicle may require further inspection?

A vehicle may require further inspection when there are clear indicators of potential issues affecting its safety and legality, such as malfunctioning brake lights and expired registration.

When the brake lights do not function, it poses a significant safety risk as they alert other drivers when the vehicle is stopping. This malfunction can lead to accidents, making it essential for the vehicle to undergo a thorough inspection to ensure that the braking system is operating correctly and safely.

Additionally, having expired registration signifies that the vehicle is not legally compliant with state regulations. This often indicates that the vehicle may not have been inspected recently or may have other underlying issues that need to be addressed to satisfy state laws regarding vehicle operation.

Both of these factors combined highlight the need for further inspection to ensure the vehicle is not only safe to operate but also meets legal requirements for being on the road. Therefore, the conclusion that both conditions warrant additional inspection is valid and underscores the importance of maintaining vehicle safety and legality.