This code indicates the transmission control module has detected that the engine disconnect clutch is slipping beyond calibrated limits when it should be fully engaged or disengaged. The clutch, which decouples the engine from the driveline during coasting or electric-only operation, is failing to maintain proper torque transfer.
The friction material may be worn down or the pressure plate damaged, preventing the clutch from generating sufficient clamping force to prevent slippage under load.
Mechanical failure of the hydraulic actuator, fork, or release bearing prevents full clutch engagement even when commanded by the control module.
Insufficient hydraulic pressure due to low fluid level, leaks, or contaminated fluid affects the clutch clamping force and cooling capacity.
Incorrect feedback from clutch position, speed, or temperature sensors causes the controller to detect false slippage or prevents proper clutch control.
Outdated transmission control software may have incorrect slippage thresholds, or lost adaptive values may cause engagement timing errors.
Rare internal fault in the TCM causing misinterpretation of clutch data; verify all mechanical and hydraulic causes before considering module replacement.
No. Continued operation can destroy the clutch friction material and potentially damage the transmission input shaft, bearings, or gear sets due to excessive heat and mechanical stress.
Only if the slippage is false due to calibration errors. Physical clutch wear, hydraulic leaks, or mechanical actuator failures require component replacement; software cannot repair worn friction material.
No. This code almost always indicates mechanical clutch wear, actuator failure, or hydraulic issues rather than a faulty control module. The TCM should be the last component suspected after mechanical causes are ruled out.
Not necessarily. If diagnosed early, replacing just the disconnect clutch assembly, actuator, and related bearings may resolve the issue without requiring a full transmission overhaul.