2022-2023 Audi A3/S3/RS3 3rd Brake Light Warning B12C615
A manufacturer communication addresses the '3rd brake light warning' displayed in the instrument cluster of certain 2022-2023 Audi A3, S3, and RS3 models, often accompanied by DTC B12C615. This bulletin provides information for technicians regarding this specific issue.
Marcus Weber2023 Audi S3
Also applies to
- Audi A3
- 2022–2023
- Audi RS 3
- 2022–2023
- Audi S3
- 2022
Owners of 2022-2023 Audi A3, S3, and RS3 models may encounter a specific warning message related to their vehicle's third brake light. This issue, identified by the diagnostic trouble code (DTC) B12C615, triggers a '3rd brake light warning' in the instrument cluster. This manufacturer communication, referenced as NHTSA ID 10242975, provides important information for technicians addressing this condition.
Symptoms
The primary symptom of this issue is the illumination of a '3rd brake light warning' message within the vehicle's instrument cluster. This warning indicates a detected fault in the circuit or function of the third brake light.
Fault Codes / DTCs
When the '3rd brake light warning' appears, it is typically accompanied by the following diagnostic trouble code:
- B12C615: This code specifically points to a malfunction within the third brake light system.
Diagnosis and Trigger Conditions
This manufacturer communication focuses on instances where the '3rd brake light warning' is actively displayed in the instrument cluster, signaling a problem. The presence of DTC B12C615 confirms the electronic control unit has detected a fault in the third brake light circuit. A technician would typically scan the vehicle's systems to confirm the presence of this specific DTC.
What Owners Should Do
If you own a 2022-2023 Audi A3, S3, or RS3 and observe a '3rd brake light warning' in your instrument cluster, especially if accompanied by diagnostic trouble code B12C615, it is recommended to schedule an appointment with an authorized Audi service center. While the summary of this 2023 Audi S3 manufacturer_communication does not detail specific repair steps, it indicates that information has been provided to technicians to address this issue. Your dealer will be able to diagnose the exact cause and perform any necessary repairs.
Source: NHTSA ID 10242975
Frequently Asked Questions
- What does the '3rd brake light warning' mean in my Audi?
- The '3rd brake light warning' indicates that your vehicle's electronic system has detected a fault with the high-mounted third brake light. This is often accompanied by a diagnostic trouble code like B12C615, suggesting an issue with the light's circuit.
- What is DTC B12C615?
- DTC B12C615 is a diagnostic trouble code specifically associated with a malfunction in the third brake light system. When this code is present, it confirms an electrical or functional problem with this particular light.
- Which Audi models are affected by the '3rd brake light warning' with DTC B12C615?
- This issue primarily affects 2022-2023 Audi A3, S3, and RS3 models, as detailed in NHTSA Manufacturer Communication 10242975.
- Should I be concerned if my third brake light warning comes on?
- While your vehicle's primary brake lights may still be functional, a '3rd brake light warning' means one of your safety lights is not working as intended. It's important to have it inspected by an authorized Audi service center to ensure all vehicle lighting is operational for safety.
- Is this a recall for my 2023 Audi S3 manufacturer_communication?
- This is a manufacturer communication (TSB), not a recall. It provides information to dealerships on how to address a known issue. While it's not a safety recall, it's still important to have the issue diagnosed and repaired by a qualified technician.
Other revisions of this TSB
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