Transmission Park Lock Solenoid Malfunction
2002-2007 Buick Rendezvous 3.5L V6
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3069 on Other Vehicles
Common Questions
What does code P3069 mean on a 2002-2007 Buick Rendezvous?
P3069 stands for "Transmission Park Lock Solenoid Malfunction". The park lock solenoid that secures the transmission in Park has a malfunction. This solenoid also enables shift-by-wire park release.
What are the symptoms of P3069 on a Buick Rendezvous?
Common symptoms of P3069 include: 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.
What causes P3069 on a 2002-2007 Buick Rendezvous?
Common causes of P3069 include: Park lock solenoid failure, Solenoid wiring fault, Shift interlock switch failure, Brake switch not sending signal to solenoid, Mechanical park pawl issue.