New Jersey Statutes 56:8-71. Dealer’s failure to correct defect
b. It shall be an affirmative defense to any claim under this section that:
(1) The alleged material defect does not substantially impair the use, value or safety of the used motor vehicle; or
(2) The material defect is the result of abuse, neglect or unauthorized modification or alteration of the used motor vehicle by anyone other than the dealer or his agent.
c. It shall be presumed that a dealer has a reasonable opportunity to correct or repair a material defect in a used motor vehicle, if:
(1) The same material defect has been subject to repair three or more times by the dealer or his agent within the warranty period, but the material defect continues to exist; or
(2) The used motor vehicle is out of service by reason of waiting for the dealer to begin or complete repair of the material defect for a cumulative total of 20 or more days during the warranty period.
L.1995,c.373,s.5.