GMC Smart Hitch Couplingis a next-generation towing safety system certified under UNECE R55 and approved internationally . It features a double-locking mechanism to prevent accidental release, a zero-friction floating design with no metal wear, and it passed a 2 B cycles endurance test plus static separation. Maintenance-free and built to reduce risks behind 50,000+ trailer accidents yearly, it’s officially recognized in Germany with no extra steps and engineered for long-term safety reliabilit
