As used in NRS 482.36661 and 482.36662 and NAC 482.262 and 482.268, the Department will interpret the term "defect" to mean an imperfection, weakness or deficiency in a component or system of the engine or drivetrain of a vehicle that prevents or inhibits the engine, drivetrain or component thereof from performing the function for which it was originally designed.
Nev. Admin. Code § 482.254
NRS 482.36667