P3064high severityPowertrain
Torque Converter Clutch Adaptive Learning Limit Exceeded
on 2012 Chevrolet Impala 3.6L V6 · FWD
What this code means
The TCC adaptive learning values have reached their maximum limit, indicating the torque converter clutch can no longer maintain proper engagement within the programmable range.
Symptoms
- Check Engine Light
- TCC shudder worsening over time
- Gradually increasing fuel consumption
- Slip at highway cruise
- TCC may stop engaging
- Occasional limp mode
Common causes
- Severe torque converter clutch wear
- Fluid deterioration beyond service limit
- Piston seal leak in converter
- TCC solenoid degradation
- Extended fluid service intervals
Diagnostic steps
- Read TCC adaptation values
- Monitor TCC slip percentage
- Check transmission fluid age and condition
- Test TCC apply pressure
- Review service history for fluid changes
Repair notes
Torque converter replacement required when adaptation limit is reached. This indicates wear beyond what software can compensate for.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1