Volvo B111177
19 Technical Journal 34647.6.0 Vehicle Type Type Eng Eng Desc Sales Body Gear Steer Model Year Plant Chassis range Struc Week Range 224 2019-2022 0000448-0150929 201835-202127 225
Quick answer
Volvo DTC B111177 is documented in Technical Journal (TJ) 34647.6.0 as an intermittent fault in the Brake Control Module (BCM). The supplied official evidence associates it with parking-brake warning conditions, including “Parking brake not fully released” or “Auto Hold service required,” when present with the listed DTCs.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does B111177 mean?
Volvo DTC B111177 is documented in Technical Journal (TJ) 34647.6.0 as an intermittent fault in the Brake Control Module (BCM). The supplied official evidence associates it with parking-brake warning conditions, including “Parking brake not fully released” or “Auto Hold service required,” when present with the listed DTCs.
2. Technical explanation
The official NHTSA-hosted Volvo manufacturer communication, TJ 34647.6.0 dated July 19, 2021, lists BCM DTC B111177 with fault type “Intermittent.” The document states that when “Parking brake not fully released” or “Auto Hold service required” is present in combination with any listed DTC, the instructions under its Service section should be followed. The supplied evidence does not provide the underlying fault definition, diagnostic steps, or repair procedure for B111177.
3. What system is affected?
Brake Control Module (BCM); parking-brake and Auto Hold-related warning context is documented.
4. How serious is this code?
Not yet established by verified evidence. The diagnostic record lists severity as unknown.
5. Symptoms you may notice
- “Parking brake not fully released” message may be present in combination with this DTC.
- “Auto Hold service required” message may be present in combination with this DTC.
- The source categorizes the customer symptom context as parking brake: “No/reduced/incorrect function.”
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence. The supplied diagnostic record lists safe-to-drive status as unknown.
8. Can I charge the vehicle?
Not yet established by verified evidence. The supplied diagnostic record lists safe-to-charge status as unknown.
9. What you can safely do
- If a parking-brake or Auto Hold warning is displayed with B111177, arrange professional diagnosis using the applicable Volvo service information.
- Do not attempt high-voltage, brake-control-module, or parking-brake repair procedures without qualified service support.
10. Step-by-step troubleshooting
- Confirm the stored DTCs with an appropriate diagnostic scan tool.
- Record any displayed warning text, including “Parking brake not fully released” or “Auto Hold service required.”
- Use Volvo TJ 34647.6.0 and applicable Volvo service information for further diagnosis. The detailed Service instructions are not included in the supplied evidence.
11. When to contact service
Professional Volvo service is appropriate when B111177 is stored with the documented parking-brake or Auto Hold warnings. Whether service is mandatory is not established by the supplied diagnostic record.
12. What the service center may check
- Check for BCM DTC B111177, listed as intermittent in TJ 34647.6.0.
- Check whether BCM B111167 and/or SRS U2C8692 are also present; both are listed in the same communication as intermittent.
- Check for the documented warning messages and parking-brake function concern.
- Follow the Service instructions in Volvo TJ 34647.6.0; their contents are not supplied in the evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Volvo S60 · 2016–2022 · US
- Volvo S90 · 2016–2022 · US
- Volvo V60 · 2016–2022 · US
- Volvo XC40 · 2016–2022 · US
- Volvo XC60 · 2016–2022 · US
- Volvo XC90 · 2016–2022 · US
15. Related TSBs / service bulletins
- Volvo Technical Journal 34647.6.0, published July 19, 2021; NHTSA Manufacturer Communication PDF 10202440 (MC-10202440-9999).
- The bulletin lists B111177 as an intermittent BCM DTC and applies within its stated vehicle-type, model-year, chassis-range, and structure-week ranges.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA-hosted Volvo manufacturer communication, “TJ 34647 6 0,” dated 2021-07-19: https://static.nhtsa.gov/odi/tsbs/2021/MC-10202440-9999.pdf. Supplied applicability data identifies US-market Volvo S60, S90, V60, XC40, XC60, and XC90 model years 2016–2022; the bulletin excerpt itself shows narrower 2019–2022 vehicle-type applicability and specific production ranges. Confirm VIN applicability with Volvo service information.
19. Frequently asked questions
What does Volvo code B111177 mean?
The supplied official bulletin identifies B111177 as an intermittent DTC in the Brake Control Module (BCM). A more specific fault meaning is not established by the verified evidence.
Is B111177 related to the parking brake?
The bulletin links the code to a parking-brake/Auto Hold warning context and categorizes the symptom as parking brake “No/reduced/incorrect function.”
Can I drive with B111177?
Not yet established by verified evidence. The supplied record lists safe-to-drive status as unknown.
Which Volvo vehicles may be affected?
Supplied applicability data covers US-market 2016–2022 S60, S90, V60, XC40, XC60, and XC90. The cited TJ excerpt indicates specific 2019–2022 vehicle-type and production-range restrictions, so VIN-level confirmation is needed.