Definition:
Pre-existing motor vehicle defects or maintenance conditions that may have contributed to the crash.
Element Attributes:
Subfield 1: Motor Vehicle Circumstance 1:
Brakes
Exhaust System
Body, Doors
Steering
Power Train
Suspension
Tires
Wheels
Lights (head, signal, tail)
Windows/Windshield
Mirrors
Wipers
Truck Coupling / Trailer Hitch / Safety Chains
Other
Unknown
Subfield 2: Motor Vehicle Circumstance 2:
Rationale:
Important for determining the significance of pre-existing problems, including equipment and operation, in motor vehicles involved in crashes that could be useful in determining the need for improvements in manufacturing and consumer alerts.