Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
B2462 02
The vehicle communications interface module detects a short to ground on the navigation antenna signal circuit.
B2462 04
The vehicle communications interface module detects an open/high resistance on the navigation antenna signal circuit.