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 LATCH SYSTEM 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 keyless entry control module Exterior Driver Door Handle Switch, Exterior Passenger Door Handle Switch, Exterior Left Rear Door Handle Switch and Exterior Right Rear Door Handle Switch parameters while pulling and releasing each exterior door handle. The parameter for each should change between Active and Inactive.
- If a value for a exterior door handle is always Active or Inactive, refer to Exterior Door Handle Malfunction in Circuit/System Testing .
- Ignition OFF, with the doors closed and locked, approach the vehicle with the keyless entry transmitter and pull the exterior driver door handle. The driver door should unlock and unlatch allowing the driver door to be pulled open.
- If the driver door does not perform as specified, refer to Driver Door Latch Malfunction in Circuit/System Testing .
- With the doors closed and locked, approach the vehicle with the keyless entry transmitter and pull the exterior passenger door handle or the exterior left rear door handle or the exterior right rear door handle. The appropriate door should unlock and unlatch allowing the door to be pulled open.
- If all the doors do not perform as specified, refer to Passenger and Rear Door Release Command Inoperative in Circuit/System Testing .
- If a single door does not perform as specified, refer to Passenger or Rear Door Latch Malfunction in Circuit/System Testing .
- Observe the scan tool Exterior Driver Door Handle Touch Sensor parameter while pressing and releasing the B210D door handle touch sensor-driver exterior. The value should change between Active and Inactive as the sensor is pressed and released.
- If the value does not change, refer to Door Handle Lock Sensor Malfunction in Circuit/System Testing .
- Observe the scan tool Exterior Passenger Door Handle Touch Sensor parameter while pressing and releasing the B210P door handle touch sensor-passenger exterior. The value should change between Active and Inactive as the sensor is pressed and released.
- If the value does not change, refer to Door Handle Lock Sensor 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.