Chevrolet Silverado 3500 HD trailer park lights remain on due to hot terminal for gooseneck and bumper connections on Chevrolet Silverado 3500 HD

Some Chevrolet Silverado 3500 HD owners report experiencing issues with trailer park lights remaining on, often due to hot terminals for gooseneck and bumper connections. These problems may be linked to a faulty trailer charge fuse, which can be tested for corrosion in the trailer plug socket. Additionally, owners have noted that flashing or flickering lights can occur as a normal function of the Trailer Lighting Control Module, and disconnecting the trailer while the lights are flashing may help resolve this. Another common cause is a bad ground connection; owners can verify this by temporarily connecting a wire from the battery negative terminal to various clean spots on the vehicle's frame. If this resolves the issue, it indicates that the specific ground connection needs to be repaired. Prompt attention to these issues is recommended to ensure proper functionality of the trailer lights.