Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
C1230 54
The rear differential clutch control module detects a series of overheat events on the left clutch.
C1231 54
The rear differential clutch control module detects a series of overheat events on the right clutch.