2021 Audi A5 SOS Emergency Call Malfunction TSB
Audi has issued a manufacturer communication regarding an SOS emergency call malfunction affecting 2021 Audi A5, A4, S4, S5, and RS 5 models. This issue is often indicated by diagnostic trouble codes B129B11 and B129C11 stored in the emergency call control module.
Sarah Mitchell2021 Audi A5
Also applies to
- Audi A4
- 2021
- Audi RS 5
- 2021
- Audi S4
- 2021
- Audi S5
- 2021
Audi has released a manufacturer communication, identified by NHTSA ID 10185283, addressing an SOS emergency call malfunction that can affect several 2021 Audi models. This issue is specifically linked to diagnostic trouble codes (DTCs) B129B11 and B129C11, which are stored within the emergency call control module.
This communication helps technicians diagnose and resolve the underlying cause of the 2021 Audi A5 SOS emergency call malfunction, ensuring the vehicle's safety features function correctly.
Symptoms of an SOS Emergency Call Malfunction
Owners of affected vehicles may notice a warning light or message related to the SOS emergency call system. The primary symptom is the system's inability to perform its intended function, which is to automatically or manually place an emergency call in the event of an accident or other critical situation.
This malfunction directly impacts a crucial safety feature designed to connect occupants with emergency services.
Fault Codes / DTCs
When an SOS emergency call malfunction occurs, specific diagnostic trouble codes (DTCs) will be stored in the vehicle's emergency call control module. These codes help technicians pinpoint the nature of the problem.
| Code | Description | Module |
|---|---|---|
| B129B11 | Emergency call control module - Malfunction | Emergency Call Control Module |
| B129C11 | Emergency call control module - Malfunction | Emergency Call Control Module |
These codes indicate an internal issue within the emergency call control module, preventing the system from operating correctly.
Diagnosis and Trigger Conditions
The presence of DTC B129B11 or B129C11 in the emergency call control module is the primary indicator of this specific SOS emergency call malfunction. Technicians will use diagnostic tools to read these codes and confirm the issue.
The communication suggests that these codes are stored when the emergency call system detects an internal fault or an inability to communicate properly within its network.
Repair Procedure Summary
While the specific repair steps are detailed in the full manufacturer communication (NHTSA ID 10185283), the general procedure involves diagnosing the emergency call control module. This typically includes checking for software updates, inspecting wiring and connections, and potentially replacing the emergency call control module if an internal fault is confirmed.
The goal is to clear the stored DTCs and restore full functionality to the SOS emergency call system.
Owner Action
If you own a 2021 Audi A5, A4, S4, S5, or RS 5 and are experiencing an SOS emergency call malfunction, or if you have had your vehicle scanned and found DTCs B129B11 or B129C11, it is recommended to schedule an appointment with an authorized Audi dealership. They have access to the specific manufacturer communication (NHTSA ID 10185283) and the necessary diagnostic tools and parts to address this issue.
Addressing a 2021 Audi A5 SOS emergency call malfunction promptly is important to ensure the safety features of your vehicle are fully operational.
Source: NHTSA ID 10185283
Frequently Asked Questions
- What does an 'SOS emergency call malfunction' mean in my 2021 Audi?
- An 'SOS emergency call malfunction' indicates that your vehicle's automatic or manual emergency call system is not functioning correctly. This system is designed to connect you with emergency services in critical situations, and a malfunction means this safety feature may be compromised.
- What are DTC B129B11 and B129C11?
- DTC B129B11 and B129C11 are diagnostic trouble codes that specifically point to a malfunction within the emergency call control module of your Audi. These codes are stored when the system detects an internal fault or communication issue, leading to the 'SOS emergency call malfunction' warning.
- Which Audi models are affected by this SOS emergency call issue?
- This particular SOS emergency call malfunction, as detailed in manufacturer communication NHTSA ID 10185283, affects 2021 Audi A5, A4, S4, S5, and RS 5 models.
- Is there a recall for the SOS emergency call malfunction?
- This issue is addressed by a manufacturer communication (NHTSA ID 10185283), which is a technical service bulletin (TSB) for dealers, rather than a safety recall. While not a recall, it indicates a known issue that Audi has provided guidance for technicians to diagnose and repair.
- What should I do if my Audi has an SOS emergency call malfunction?
- If your 2021 Audi is displaying an 'SOS emergency call malfunction' warning or you suspect an issue, you should contact an authorized Audi dealership. They can perform a diagnostic check, confirm the presence of DTCs like B129B11 or B129C11, and apply the appropriate repair procedure based on the manufacturer's guidance.
Other revisions of this TSB
- 2022-2025 Audi e-tron Emergency Call System Fault TSBB129B11
- 2023-2026 Audi Emergency Call System Fault B200000 TSBB129B11
- 2020-2026 Audi Emergency Call Fault B200000B129B11
- 2022-2026 Audi Emergency Call System Fault TSBB129B11
- 2021-2022 Audi MIB3 Infotainment Favorites Lost TSBB129B11
- 2021 Audi Q8 SOS Malfunction TSB 2061625/4B129B11
- 2021 Audi SOS Emergency Call Malfunction TSBB129B11
- 2021 Audi SOS Emergency Call MalfunctionB129B11
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