2021-2023 BMW Headlight Faulty Warning TSB
A BMW manufacturer communication (NHTSA ID 10233164) addresses "Headlight faulty" warnings and related diagnostic trouble codes 805A22 and 805BA2 in certain 2021-2023 BMW X7, X1, and 7 Series vehicles, indicating a communication fault in the headlight control module.
Marcus Weber2023 BMW X7
Also applies to
- BMW 740i
- 2023
- BMW 760i
- 2023
- BMW i7
- 2023
- BMW X1
- 2022–2023
- BMW X7
- 2021–2022
BMW has issued a manufacturer communication, identified by NHTSA ID 10233164, to address specific headlight warning messages and diagnostic trouble codes (DTCs) that may appear in certain 2021-2023 BMW vehicles, including the 2023 BMW X7. This technical service bulletin (TSB) focuses on resolving communication faults within the exterior lighting system.
Symptoms
Owners of affected BMW vehicles may observe warning messages displayed in the instrument cluster related to the high beam headlights. These messages indicate a fault within the lighting system. The specific messages you might see include:
- "128 Left high beam headlight faulty"
- "130 Right high beam headlight faulty"
If you experience a 2023 BMW X7 headlight faulty warning, it's important to have your vehicle diagnosed promptly.
Fault Codes / DTCs
When a diagnostic scan is performed on an affected vehicle, specific fault codes related to the headlight control module (MLC) and front light module (FLM-03) may be stored. These codes point to a communication timeout issue.
| Code | Description | Module |
|---|---|---|
| 805A22 | MLC: Communication fault timeout FLM-03 left | MLC |
| 805BA2 | MLC: Communication fault timeout FLM-03 right | MLC |
Diagnosis and Trigger Conditions
The presence of the
Frequently Asked Questions
- What does '128 Left high beam headlight faulty' mean in my BMW?
- This message indicates a communication fault with the left front light module (FLM-03), often accompanied by diagnostic trouble code 805A22. A BMW TSB (NHTSA ID 10233164) addresses this issue, typically requiring a software update.
- Can I fix the 2023 BMW X7 headlight faulty warning myself?
- No, resolving the 2023 BMW X7 headlight faulty warning and related DTCs like 805A22 or 805BA2 typically requires a software update performed by a BMW dealership. It's recommended to have a qualified technician diagnose and repair the issue.
- Is the headlight fault covered under warranty?
- Manufacturer communications like BMW TSB NHTSA ID 10233164 often describe repairs that are covered under the vehicle's new vehicle limited warranty, especially if the issue is a known software defect. You should consult your BMW dealer for specific warranty coverage details.
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