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 MANUALSBUICK2018REGAL BASEREPAIR AND DIAGNOSISRESTRAINTSAIR BAG, SRSSUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM
2018 Buick Regal Base
Supplemental Inflatable Restraint System
2018 Buick Regal BaseSECTION Supplemental Inflatable Restraint System
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- DTC B0012 or B0013
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0014, B0021, B0031, or B0038
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0015, B001A, B001B, or B0022
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0016, B0018, B0023, or B0025
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0017 or B0024
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0019 or B0020
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0052
- DTC B0071
- DTC B0074
- DTC B0081 (Passenger Presence Module)
- DTC B0081 (SDM)
- DTC B0082
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0083-B0088
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aid
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0098
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- DTC B009E
- DTC B067F or B0680
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Actions Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B1001 (Passenger Presence System)
- DTC B1001 (Inflatable Restraint Sensing and Diagnostic Module)
- DTC B1019
- Passenger Presence System Re-Zeroing
- Symptoms - SIR
- Airbag Indicator Malfunction (Passenger)
- Airbag Indicator Malfunction (Driver)
- SIR Disabling and Enabling
- DTC B0012 or B0013
- Repair Instructions
- SIR Service Precautions
- Airbag Front End Discriminating Sensor Replacement
- Airbag Front End Discriminating Sensor Protector Replacement
- Airbag Side Impact Sensor Replacement
- Airbag Sensing and Diagnostic Module Replacement
- Steering Wheel Airbag Replacement
- Steering Wheel Airbag Coil Replacement
- Airbag Steering Wheel Module Coil Centering
- Instrument Panel Airbag Replacement
- Instrument Panel Lower Airbag Replacement - Driver Side
- Instrument Panel Lower Airbag Replacement - Passenger Side
- Airbag Front Passenger Presence Module Replacement
- Front and Rear Row Seat Roof Rail Airbag Replacement (Hatchback)
- Front and Rear Row Seat Roof Rail Airbag Replacement (Wagon)
- Front Seat Outboard Seat Back Airbag Replacement
- Rear Seat Bolster Airbag Replacement
- Airbag Side Impact Rear Sensor Replacement
- Instrument Panel Airbag Disable Switch Replacement
- Front Seat Belt Retractor Replacement
- Front Seat Belt Anchor Plate Tensioner Replacement
- Repairs and Inspections Required After a Collision
- Accident With or Without Air Bag Deployment - Component Inspections
- Accident With Frontal Air Bag Deployment - Component Replacement and Inspections
- Accident With Side Seat Air Bag Deployment - Component Replacement and Inspections
- Accident With Seat Belt Pretensioner Deployment Only - Component Replacement and Inspections
- Impact Sensor Replacement Guidelines
- Inflatable Restraint Module Handling and Scrapping
- Pretensioner Handling and Scrapping
- Description and Operation
- Supplemental Inflatable Restraint System Description and Operation
- SIR System Overview
- SIR System Air Bag Deployment Message
- SIR System AIR BAG Indicator
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Air Bags
- Seat Belt Pretensioners (Anchor and Retractor)
- Impact Sensors
- Passenger Presence Detection System (If Equipped) and Passenger Air Bag Indicator
- Passenger Air Bag Disable Switch (If Equipped)
- Seat Belt Indicators
- Supplemental Inflatable Restraint System Description and Operation
- Special Tools and Equipment
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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.