01:55 20-02-2026

GM addresses radiator clamp defect in 2026 Corvette vehicles

General Motors announces a service campaign for 19 2026 Corvettes with a potential radiator clamp defect. Dealers must fix before delivery, no recalls for owners.

General Motors has announced a service campaign for a limited batch of 2026 model year Corvettes. According to bulletin N252541390, only 19 vehicles received a radiator clamp with a potential securing defect: a bright blue locking pin that should have been removed during production might still be present. Technicians are instructed to inspect the part through the engine oil drain plug hole. If the element is found, they must remove the rear power plate, replace the clamp, and completely refill the cooling system.

GM emphasizes that the issue affects only vehicles at dealerships or in transit, not those already delivered to customers. The update should be performed during scheduled visits without requiring separate owner recalls. Dealers cannot release the cars to buyers until the defect is fixed.

GM states that it discovered the discrepancy during internal quality checks and decided to address it before vehicle delivery. The service campaign is valid until February 28, 2027. For future owners, this means a minor delay, but it ensures the 2026 Corvette meets the brand's standards.