The National Highway Traffic Safety Association has issued two recall reports on defects on windshield bonding reported by Porsche and Nissan. On March 2, 2017 Porsche issued a recall on 21 of its 2017 models. According to the recall, windshields were improperly bonded to the vehicle frame and this may cause the windshield to detach in the event of collision. “An incorrect composition of the windshield adhesive could lead to a loss of the adhesion properties of the adhesive layer between windshield and the vehicle’s windshield frame,” according to the report.