# Service bulletin 2078544/1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11020979
- Published by NHTSA: 2025\-07\-30
- Manufacturer's number: 2078544/1
- Manufacturer's date: 2025\-07\-21
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

DTC B1765F1 \- "Active noise cancelling basic settings not performed" \(Bang \& Olufsen\) \| Flying Spur \| 26MY. Condition: For vehicles with a Bang \& Olufsen sound system, the following DTC may be stored in the control module 005F \(Information Electronics 1\): • B1765F1 – Active Noise Cancelling: Basic Settings Not Performed This may be accompanied by customer complaints of diminished active noise cancelling, or a warning in the diagnostic log after a module replacement or software update.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020979-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11020979-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Trouble codes named

B1765

## Vehicles listed

- 2026 BENTLEY FLYING SPUR

## Other bulletins for the same vehicles and component

- [2080951/2](/bulletins/11038365.md), 2026-10-08, Service bulletin: VISIBILITY/WIPER; ELECTRICAL SYSTEM. Temperature Pop‑Up No Longer Displayed in the MMI Display \| Continental GT/GTC /Flying Spur. Customer Statement: Customers may report that the temperature popup no longer appears in the MMI display when adjusting the cabin temperature via the Wellbeing App or rotary dial.
- [2076695/6](/bulletins/11038347.md), 2026-10-07, Service bulletin: ELECTRICAL SYSTEM. Showroom Charging Instructions \| Continental GT/GTC and Flying Spur. Condition: 12v battery voltage drops when on showroom display
- [2083321/2](/bulletins/11038256.md), 2026-10-07, Service campaign: ELECTRICAL SYSTEM. Software Update \| 12v Li\-On Battery \| Continental GT/GTC/Flying Spur \| SC26/27 Technical background: Affected vehicles have received updated hardware to the 12V Li\-On battery. A software update is now required and available for these affected vehicles.
- [2082051/4](/bulletins/11038245.md), 2026-10-07, Service bulletin: ELECTRICAL SYSTEM. 12V Battery Compatibility \| Continental GT/GTC/Flying Spur \| 26MY. Customer statement / workshop findings: This TPI is intended to give definitive guidance on the installation of the latest 12V battery in 26MY\(BIL108\) and 26.5MY\(BIL110\) vehicles. The need for clarity arises due to software dependencies that affect battery approval and functionality.
- [2080872/3](/bulletins/11037174.md), 2026-09-09, Service bulletin: VISIBILITY/WIPER; STRUCTURE:BODY; ELECTRICAL SYSTEM. HVAC Auto Fan \- Auto Function Not Operating Correctly l Cont GT/C, Flying Spur. Customer Statement: Customers may report that the HVAC Auto function is not operating as intended. When Auto mode is selected, the air conditioning system remains at the lowest fan speed only. Instead of adjusting automatically, the fan does not increase speed as expected
- [2083066/1](/bulletins/11037173.md), 2026-09-09, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Drive system fault \- Camshaft position sensor DTC. Customer may state following concerns: Drive system fault on the dashboard Abnormal engine noise on engine start\-up
- [2082051/3](/bulletins/11037163.md), 2026-09-09, Service bulletin: ELECTRICAL SYSTEM. 12V Battery Compatibility \| Continental GT/GTC/Flying Spur \| 26MY. Customer statement / workshop findings: This TPI is intended to give definitive guidance on the installation of the latest 12V battery in 26MY vehicles. The need for clarity arises due to software dependencies that affect battery approval and functionality.
- [2078265/3](/bulletins/11037159.md), 2026-09-09, Service bulletin: ELECTRICAL SYSTEM; SUSPENSION; POWER TRAIN. All wheel drive, air suspension and differential warning on DIP DTC U013200 is present in 0019. Customer states one of the following intermittent concerns: • Red Air Suspension warning on the instrument cluster. • Amber warnings for Sports Differential and Bentley Dynamic Ride on the instrument cluster
- [2078962/7](/bulletins/11036563.md), 2026-09-01, Service bulletin: ELECTRICAL SYSTEM. ODIS Error Message – Best Practice When Performing Baseline \(BiL\) Updates. Workshop Findings: During vehicle baseline \(BiL\) updates using ODIS, users may encounter various error messages. These errors can interrupt the update process and may be caused by issues related to the vehicle’s current configuration, communication faults, or problems with the SVM code being applied.
- [2080757/2](/bulletins/11035937.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM. TSR Media, Radio and Audio Output \- Not Functional. Customers may report one or more of the following: • Touch Screen Remote \(TSR\) media interface is nonfunctional. • No audio output from radio, media sources, or system sounds.

JSON: [/v1/bulletins/11020979](/v1/bulletins/11020979)

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