Diagnostic Aids

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

This DTC may be set due to the connection of an incompatible or faulty USB device.
The human machine interface control module has two available USB connections. The human machine interface control module calibrations determine what is expected to be connected to each of these connection: either a USB port or a USB/SD Card reader HUB. USB 1 and USB 2 refers to the connector at the module that the port or hub is connected to.