Circuit/System Description
WARNING: This page is about a different car, the 2019 Chevrolet Traverse. However, it is still accessible from the selected car via links, so may be relevant.
The telematics communication interface control module is programmed to match a SIM card. SIM cards have each been assigned a unique SIM card number. If the SIM card number programmed into the telematics communication interface control module does not match the SIM card or if the SIM card has been swapped from another telematics communication interface control module, the telematics communication interface control module will set a DTC.