Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 164 (POWER DOOR LOCK SYSTEM AND RELEASE SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER DOOR CHILD LOCK MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Verification
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, observe the scan tool Window Lockout Switch parameter while pressing the window lockout switch on the driver window switch. The value should change from Inactive to Active each time the switch is pressed.
- If the value is always Inactive or always Active, replace the driver door lock/window switch.
- Observe the function of the lockout indicator while pressing the window lockout switch on the driver window switch. The indicator should turn ON and OFF each time the switch is pressed
- If the indicator is always ON or always OFF, replace the driver window switch.
- If the indicator flashes ON and OFF, refer to Child Security Door Lockout Inoperative or the Child Security Door Lockout Malfunction in Circuit/System Testing .
- Command the doors to LOCK and UNLOCK with the scan tool, all doors should LOCK and UNLOCK while changing between the commanded states.
- If either rear door does not LOCK or UNLOCK, refer to Power Door Lock Malfunction - DTC B3125, B3130, or B3135 .
- With all the doors locked, command the child security lockout by pressing the window lockout switch on the driver window switch, the interior rear door handles should not open the doors when used.
- If both interior rear door handles continue to function, refer to Child Security Door Lockout Inoperative in Circuit/System Testing .
- If the left or right interior rear door handles continue to function, refer to Child Security Door Lockout Malfunction in Circuit/System Testing .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.