See also:

Malfunction Indicator Light (MIL)
If this indicator light comes on steady or blinks while the engine is running, it may indicate a potential emission control malfunction. The Malfunction Indicator Light may also come on steady i ...

Hitch ball
Choose a hitch ball of the proper size and weight rating for your trailer: - The required hitch ball size is stamped on most trailer couplers. Most hitch balls also have the size printed on to ...

Uniform tire quality grading
DOT (Department of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable on ...