P3069critical severityPowertrain
Transmission Park Lock Solenoid Malfunction
on 2011 Chevrolet Express 6.0L V8 Vortec · RWD
What this code means
The park lock solenoid that secures the transmission in Park has a malfunction. This solenoid also enables shift-by-wire park release.
Symptoms
- Vehicle will not shift out of Park
- Park indicator flashing
- Key cannot be removed (if applicable)
- Vehicle may roll when parked
- Shift lever moves but no gear engagement
- Override button required to shift from Park
Common causes
- Park lock solenoid failure
- Solenoid wiring fault
- Shift interlock switch failure
- Brake switch not sending signal to solenoid
- Mechanical park pawl issue
Diagnostic steps
- Test park lock solenoid operation via scan tool
- Check brake switch signal to TCM
- Test solenoid wiring continuity
- Inspect park pawl mechanism
- Check shift interlock system
Repair notes
Replace park lock solenoid. Verify brake switch operation. Check park pawl engagement. SAFETY CRITICAL - vehicle must hold securely in Park.
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