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 MANUALSBUICK2012VERANOREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONS
2012 Buick Verano
Keyless Entry System And Remote Functions
2012 Buick VeranoSECTION Keyless Entry System And Remote Functions
- Wiring Schematics
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B3101
- DTC B3105
- DTC B3106
- DTC B3109-B3113
- DTC B310D-B310F
- DTC B3119
- 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 B3120
- 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 B3122
- DTC B3123
- DTC B3124
- Symptoms - Remote Functions
- No Remote Detected
- Keyless Entry System Malfunction (Active)
- Keyless Entry System Malfunction (Passive)
- Remote Vehicle Start Malfunction
- Repair Instructions
- Ignition Lock Key Transmitter Antenna Replacement - Instrument Panel
- Ignition Lock Key Transmitter Antenna Replacement - Floor Console
- Ignition Lock Key Transmitter Antenna Replacement - Rear Compartment
- Ignition Lock Key Transmitter Antenna Bracket Replacement
- Keyless Entry Control Module Replacement
- Keyless Entry Control Module Bracket Replacement
- Remote Control Door Lock Receiver Replacement
- Description and Operation
- Keyless Entry System Description and Operation (with BTM)
- Keyless Entry System Description and Operation (with BTM)
- Keyless Entry Transmitters
- Door Antennas
- Rear Fascia Antenna
- Front Console Passive (Instrument Panel) Antenna
- Rear Console Antenna
- Rear Compartment Antenna
- Immobilizer Antenna Coil Assembly
- Keyless Entry Control Module
- OnStar® Remote Link
- Body Control Module (BCM)
- Unlock Driver Door Only - Active
- Unlock All Doors - Second Operation - Active
- Unlock Driver Door Only - Passive
- Unlock All Doors - Passive
- Lock All Doors - Active
- Lock All Doors - Passive
- Rear Compartment Lid Release - Active
- Rear Compartment Lid Release - Passive
- Vehicle Locator/Panic Alarm/Active
- Remote Vehicle Start/Active
- Enable/Disable Remote Vehicle Start/Active
- Hood Ajar Switch/Active
- Remote Vehicle Start Circuit Description/Active
- Keyless Entry Personalization
- Keyless Entry System Description and Operation (without BTM)
- Notes
- Keyless Entry Transmitters
- OnStar® Remote Link (if equipped)
- Body Control Module (BCM)
- Remote Control Door Lock Receiver
- Unlock Doors
- Lock All Doors
- Trunk Release
- Vehicle Locator/Panic Alarm
- Remote Vehicle Start, if equipped
- Enable/Disable Remote Vehicle Start
- Hood Ajar Switch
- Remote Vehicle Start Circuit Description
- Keyless Entry Personalization
- Keyless Entry System Description and Operation (with BTM)
- 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.