The root cause of this issue lies in damage to a ring-type seal located directly in the vehicle's upper radiator hose. A loss of seal integrity leads to a gradual coolant leak. This inevitably reduces the overall volume of fluid in the system, triggering the malfunction indicator lamp on the dashboard.

Fixing this problem involves a series of technical steps. First, all coolant is drained from the engine's cooling system. Next, the defective upper radiator hose is replaced with a new part. The final repair step is a thorough cleaning of the radiator connection to remove any contamination or remnants of the old gasket.

All these procedures are performed free of charge for owners of the affected vehicle models and model years under the manufacturer's full factory warranty terms.

Company officials strongly advise vehicle owners to contact the nearest authorized General Motors service center immediately upon noticing signs of a potential coolant leak. This prompt action allows for a swift repair and helps prevent further vehicle deterioration due to insufficient engine coolant.