Circuit/System Testing
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Replace the T4S Wireless Communication Antenna - Bluetooth.
- Clear the DTCs and operate the vehicle within the conditions for running the DTC. Verify DTC B2485 does not set.
- If the DTC sets, replace the T4S Wireless Communication Antenna - Bluetooth.