Circuit/System Description
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid powertrain control module monitors the clutch slip speed for each Hybrid Trans. Mode Commanded state. This DTC detects no clutch slip speed when the 4th clutch is commanded OFF, indicating a stuck or welded clutch condition. The 4th clutch is displayed as Clutch 3 on the scan tool.