2021 Audi Pre Sense Warning, Jolt, or Brake Engagement TSB
Audi has released Technical Service Bulletin 90 20 36 2058077/2 to address customer concerns regarding unexpected Audi pre sense interventions. This includes warnings, warning jolts, and even brake engagement without apparent cause. The TSB outlines diagnostic steps for technicians.
David Chen2021 Audi e-tron
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- Audi A4
- 2021
- Audi A5
- 2021
- Audi A6
- 2021
- Audi A7
- 2021
- Audi Q3
- 2021
- Audi Q5
- 2021
- Audi Q7
- 2021
- Audi Q8
- 2021
- Audi R8
- 2021
- Audi RS 5
- 2021
- Audi S4
- 2021
- Audi S5
- 2021
- Audi S6
- 2021
- Audi S7
- 2021
- Audi S8
- 2021
- Audi SQ5
- 2021
- Audi TT
- 2021
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Owners of 2021 Audi vehicles may experience unexpected activations of the Audi pre sense system, leading to warnings, warning jolts, or even unintended brake engagement. This can be a concerning issue, as the system is designed to enhance safety by detecting potential collisions.
Audi Technical Service Bulletin (TSB) 90 20 36 2058077/2, which supersedes TSB 19-35, provides guidance for diagnosing and addressing these unexpected interventions. The TSB focuses on the proper use of diagnostic tools and understanding the system's operational limits.
Symptoms
Vehicle owners might observe one or more of the following symptoms related to an unexpected Audi e-tron pre sense warning or intervention:
- An unexpected Audi pre sense city warning or warning jolt.
- An unexpected Audi pre sense city emergency stop.
- An unexpected Audi pre sense front warning or warning jolt.
- Unexpected Audi pre sense front partial braking or emergency braking.
- Intervention of emergency steer assist or turning assistant without apparent cause.
- The Audi pre sense symbol appearing in the instrument cluster accompanied by an audible warning.
- An Audi e-tron pre sense warning or judder (a short, perceivable brake activation) when no immediate hazard is present.
Fault codes / DTCs
This Technical Service Bulletin does not list specific Diagnostic Trouble Codes (DTCs) associated with the unexpected Audi pre sense interventions. Instead, the TSB directs technicians to use specific diagnostic test programs within the ODIS system. These test programs help evaluate the system's behavior and identify the root cause of the unexpected activations.
What the service bulletin says
Technical Service Bulletin 90 20 36 2058077/2 instructs technicians on how to investigate customer complaints regarding unexpected Audi pre sense system activations. The process involves asking specific questions about the timing and nature of the intervention, such as whether the Audi pre sense symbol was displayed or if a warning tone sounded.
The TSB outlines the use of the
Frequently Asked Questions
- What is the Audi pre sense system?
- Audi pre sense is a suite of safety systems designed to detect potential collisions and take preventative measures, such as issuing warnings, tightening seatbelts, or initiating partial or emergency braking, to help mitigate or avoid accidents.
- Why is my 2021 Audi e-tron pre sense warning unexpectedly?
- If your 2021 Audi e-tron is experiencing unexpected pre sense warnings, jolts, or braking, it may be related to the conditions described in Technical Service Bulletin 90 20 36 2058077/2. This TSB guides technicians through diagnostic procedures to understand why the system is intervening without an apparent hazard.
- Does this TSB apply to other Audi models?
- Yes, Technical Service Bulletin 90 20 36 2058077/2 applies to a range of 2021 Audi models, including the A4, A5, A6, A7, Q3, Q5, Q7, Q8, R8, S4, S5, S6, S7, S8, SQ5, and TT, in addition to the e-tron.
- Are there specific fault codes for this Audi pre sense issue?
- The TSB 90 20 36 2058077/2 does not specify particular DTCs (Diagnostic Trouble Codes) for unexpected Audi pre sense interventions. Instead, it directs technicians to utilize specialized diagnostic test programs like the "Audi pre sense test program" and "Data logging" within the ODIS system to analyze system behavior and identify the cause.
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