Radio Module Software Update 20.11 – 2018 Cadillac & GMC
NHTSA ID Number: 10161938 Manufacturer Communication Number: 18NA195 Summary This technical bulletin provides a procedure to information on OnStar will update vehicles remotely through in-vehicle prompts from the radio display. However, some customers may decline the vehicle update or the update is attempted, but is not successful. In such cases, and in all export markets plus fleet … Read more