Conditions for Setting the DTC
WARNING: This page is about a different car, the 2015 GMC Acadia, 2015 Chevrolet Traverse, and 2015 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.