2021-2022 Audi HD Radio Troubleshooting Guide
This Audi Technical Service Bulletin (TSB 91 20 24 2026611/7) provides an overview of HD Radio technology and common troubleshooting concerns for 2021-2022 Audi models. It addresses issues like poor reception, blending, audio misalignment, and radio text display problems.
Marcus Weber2022 Audi e-tron
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- Audi A4
- 2021–2022
- Audi A5
- 2021–2022
- Audi A6
- 2021–2022
- Audi A7
- 2021
- Audi e-tron
- 2021
- Audi Q3
- 2021–2022
- Audi Q5
- 2021
- Audi Q7
- 2021–2022
- Audi Q8
- 2021–2022
- Audi R8
- 2021
- Audi RS 5
- 2021
- Audi RS 7
- 2021–2022
- Audi RS Q8
- 2021–2022
- Audi S4
- 2021–2022
- Audi S5
- 2021–2022
- Audi S6
- 2021–2022
- Audi S7
- 2021–2022
- Audi S8
- 2021–2022
- Audi SQ5
- 2021–2022
- Audi SQ7
- 2021–2022
- Audi SQ8
- 2021–2022
- Audi TT
- 2021
- Audi TT RS
- 2021
- Audi TTS
- 2021
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This Technical Service Bulletin (TSB) 91 20 24 2026611/7, issued by Audi, offers a detailed overview of HD Radio technology. It aims to help technicians and owners understand and troubleshoot common concerns related to the HD radio system in various Audi models. This TSB supersedes an earlier bulletin, 18-96, and is specifically designed to address various aspects of HD radio functionality.
Symptoms
Owners of affected Audi vehicles may experience a range of issues with their HD radio system. These symptoms can include:
- Poor HD radio reception: Digital radio signals may be interrupted, especially near high terrain, tall buildings, bridges, or tunnels.
- HD radio blending concerns: The system may frequently switch between analog and digital signals, leading to changes in sound quality or tone.
- Audio level misalignment: Digital and analog signals may be out of sync, causing echoing or sudden volume changes.
- HD radio multicasting issues: Problems with receiving HD2, HD3, or other sub-stations.
- Radio text information not showing: Song or station information may not appear on the display, or it might be incorrect.
Understanding these symptoms is key to effective Audi HD radio troubleshooting.
Fault codes / DTCs
This informational Technical Service Bulletin does not list any specific Diagnostic Trouble Codes (DTCs) associated with HD radio concerns. The issues described are primarily related to the performance and reception of the HD radio system, rather than specific electronic malfunctions that would trigger a DTC.
What the service bulletin says
TSB 91 20 24 2026611/7 provides an extensive overview of HD Radio technology, including explanations of multicasting, digital signal technology, and factors affecting reception. It clarifies that
Frequently Asked Questions
- What is HD radio blending and why does it happen?
- HD radio blending is the normal process of your Audi's radio switching between analog and digital signals. It occurs more frequently when driving in areas with weak digital signal reception, like fringe areas, and can cause noticeable changes in sound quality or volume. This is considered a normal function of the HD radio system.
- Why does my Audi HD radio text information not display correctly?
- Radio text information may not display due to low signal strength, issues with the broadcasting station sending invalid data, or the radio retaining older information until new data is received. If the text isn't updating in the 'Presets' menu, you may need to navigate back to the main radio menu to allow it to update first.
- What should I do if I have poor HD radio reception in my 2021-2022 Audi?
- Poor HD radio reception can be caused by environmental factors like high terrain, buildings, bridges, or tunnels. If you consistently experience poor reception, ensure your HD radio settings are correct. If issues persist, you can contact your Audi dealer's Technical Assistance Center for further diagnosis, or report station-specific issues to hdradio.com.
- Does this TSB cover all Audi models with HD radio?
- This specific TSB, 91 20 24 2026611/7, is linked by NHTSA to 2021-2022 Audi models. While HD radio technology is present in a broader range of vehicles, this document provides specific guidance for the listed models and years.
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