# Service bulletin 2077652/2

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: 11027473
- Published by NHTSA: 2026\-01\-08
- Manufacturer's number: 2077652/2
- Manufacturer's date: 2025\-12\-11
- NHTSA component: ELECTRICAL SYSTEM; EXTERIOR LIGHTING

## NHTSA's summary

Headlamp Switch Inoperative \- Numerous DTC's \| Bentayga Series \| 24\-25MY. Customer statement: • Headlamp switch not working / not illuminated when the ignition is switched on \(following an ignition switch off\) And/or • Yellow warning light/message within DIP \(Adaptive lighting fault\) And / or • Loss of rear fog light activation And / or • Loss of all\-weather lighting mode activation And / or • Headlamps will default to dipped beam \(however, high beam activation will still be possible manually\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027473-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027473-9999.pdf)

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

## Components

Electrical system, Lighting

## Vehicles listed

- 2025 to 2026 BENTLEY BENTAYGA
- 2024 BENTLEY redundant BENTAYGA

## Other bulletins for the same vehicles and component

- [2082981/1](/bulletins/11038244.md), 2026-10-07, Service campaign: ELECTRICAL SYSTEM; STRUCTURE:BODY. Software Update \| Trailer Assist \| Bentayga \| 25MY \& 26MY \(SC26/19\). Technical background: A software update is now available to address a potential concern for vehicles fitted with an authorised towbar. The software update intends to update relevant control modules to fix this potential concern. In affected vehicles, customers may be presented with the message "Trailer reverse assist: currently unavailable" on the MMI, preventing access to Trailer Assist functionality.
- [2061369/14](/bulletins/11037161.md), 2026-09-09, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Engine Overheating \- Warning in the DIP \| V8 Kovomo. Customer statement / workshop findings: One or a combination of the following symptoms are evident • Engine overheat warning in the DIP \(Engine overheating\) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
- [2082212/2](/bulletins/11037098.md), 2026-09-05, Service campaign: ENGINE; ELECTRICAL SYSTEM. Subframe Mount Control Unit \- Calibration Update \| Bentayga Series \| 26\-27MY \(SC26/16\) Technical background: On the affected vehicles the current dataset in the J931 power unit mounting control unit causes unintended active operation of the engine mount. The updated calibration replaces the existing dataset with a revised version, deactivating the active mount function.
- [2061369/13](/bulletins/11037097.md), 2026-09-05, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Engine Overheating \- Warning in the DIP \| V8 Kovomo. Customer statement / workshop findings: One or a combination of the following symptoms are evident: • Engine overheat warning in the DIP \(Engine overheating\) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
- [2078373/4](/bulletins/11036783.md), 2026-09-03, Service bulletin: VISIBILITY/WIPER; STRUCTURE:BODY; ELECTRICAL SYSTEM. Sunroof blind not retracting \| Bentayga Series. Customer may report that the sunroof blind is stuck in the closed position and cannot be opened using interior controls. The Sunroof blind is stuck due to uneven/ruffled or crumped during open or closing
- [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.
- [2081085/2](/bulletins/11035939.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM; ENGINE. V8 Engine \- Ticking Noise, Misfiring and Possible Low Oil Pressure Indications. Customer statement: The customer may report an audible ticking noise from the top of the engine, low oil pressure warnings / MIL on the Driver Information Panel, and/or misfiring during engine operation
- [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.
- [2073377/4](/bulletins/11035933.md), 2026-08-06, Service bulletin: WHEELS; ELECTRICAL SYSTEM. TPMS \- Warning within the Drivers Information Panel \(DIP\) \- Tyre pressure sensor \- Low battery.
- [2078373/3](/bulletins/11035932.md), 2026-08-06, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY/WIPER. Sunroof blind not retracting \| Bentayga Series.

JSON: [/v1/bulletins/11027473](/v1/bulletins/11027473)

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