What is one common sign that should alert you to issues with your vehicle?

Unusual noises or vibrations from your vehicle are critical indicators of potential issues. When a vehicle is functioning properly, it should operate smoothly and without any abnormal sounds or sensations. These unusual signs can point to a variety of problems, such as issues with the engine, transmission, suspension, or braking system. For example, a knocking sound may suggest engine trouble, while vibration could indicate misalignment or problems with the tires. Addressing these warning signs promptly can prevent more severe damage, enhance safety, and ensure the longevity of the vehicle.

The other options reflect scenarios that do not typically indicate problems. A smoothly running engine is a good sign, and having all dashboard lights off typically means there are no issues detected. A full fuel gauge is simply an indication of fuel status and doesn’t denote any mechanical problems. Recognizing the significance of unusual noises or vibrations is essential for maintaining vehicle safety and performance.