WenmarOpen by Wenmar Pro

Service bulletins for the 2026 Bentley Bentayga

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.

164 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
2071131/62026-07-07. Service bulletin. ELECTRICAL SYSTEM. Measured values - Cycle recording instructions Condition: In some cases Measured value traces may be requested in XML format for analysis by Product Support Technical Background: The instructions within the Measure section of this TPI have been generated to guide operatives through the process for recording Measured values in cycles by using self diagnosis, the Instructions also detail how to locate corresponding files which are required for analysis
2082261/12026-07-07. Service bulletin. POWER TRAIN; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. DTC C113353 stored in address 00B0 - Subframe Mount (J931) Customer statement / workshop findings: The following DTC is stored in the Subframe Mount Control Unit (Diagnostic Address 00BA): •DTC C113353 – Subcomponent mount control module deactivated – active/static No additional faults are present, there are no customer-facing symptoms, and no functional or drivability concerns are associated with this DTC.
2082212/12026-07-02. Service campaign. ENGINE; STRUCTURE:BODY; ELECTRICAL SYSTEM. Subframe Mount Control Unit - Calibration Update | Bentayga Series | 26MY (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.
2082002/12026-06-06. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION. B200FFE - Internal Malfunction Logged in Sway Stablization Control Units (00D4/00D5). Customer statement / workshop findings: During fault finding, the following may be observed: DTC B200FFE (Internal Malfunction) stored in the following diagnostic address: • Front Sway Stablization Control Unit (00D4)Or • Rear Sway Stablization Control Unit (00D5)
2078190/62026-06-03. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. AC System not Cooling - HVAC Leakage. Customer Statement: The customer may find that the A/C system not blowing cold air and / or Cooling performance has declined over time.
2081603/12026-06-03. Service bulletin. ELECTRICAL SYSTEM. MMI Display Screen Malfunction | Bentayga Series. Customer Statement: Customers may report one or more of the following symptoms: • Flickering of the centre display. • Distorted/rolling/scrolling screen image. • Display becomes partially unreadable or screen appears unresponsive. • Intermittent image disruption after ~20–40 minutes of system usage.
2081449/32026-06-03. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER; STRUCTURE:BODY. Window Drop Glass Anti‑Trap Activating / Window Bounce‑Back | Bentayga EWB. Customer Statement Customers may report windows stop and reverse shortly before reaching the midpoint or fully closed position.
2063729/52026-06-03. Service bulletin. ELECTRICAL SYSTEM. Fitment of control modules from donor vehicles for test purposes. Technical background If an issue is suspected for one of the control modules listed below: • Onboard supply control unit (J519) • Convenience system central control unit (J393) • Data bus diagnostics interface (J533) • Control unit 1 for Information Electronics (J794) • Control unit in dash panel insert (J285) • Emergency call module control unit (J949) The fitment of donor parts from another vehicle is not advisable and only possible if approved from Product Support via an open DISS query.
2081449/22026-05-07. Service bulletin. VISIBILITY/WIPER; STRUCTURE:BODY; ELECTRICAL SYSTEM. Window Drop Glass Anti‑Trap Activating / Window Bounce‑Back | Bentayga EWB. Customer Statement: Customers may report windows stop and reverse shortly before reaching the midpoint or fully closed position.
2051562/162026-05-05. Service bulletin. ELECTRICAL SYSTEM. 12 volt - Battery condition checks - Battery replacement requirements. Customer statement / workshop findings: 12 volt battery flat or unserviceable
2081449/12026-05-01. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER; STRUCTURE:BODY. Window Drop Glass Anti‑Trap Activating / Window Bounce‑Back | Bentayga EWB Customer Statement: Customers may report windows stop and reverse shortly before reaching the midpoint or fully closed position.
2078190/52026-04-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. AC System not Cooling - HVAC Leakage. Customer Statement: The customer may find that the A/C system not blowing cold air and / or Cooling performance has declined over time.
2079115/22026-04-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Turbo Charger Under-boost - DTC P029900 is evident in 0001 | V8 Kovomo | All Models. Customer Statement: The engine warning light comes on and the vehicle loses power.
2071933/42026-04-05. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Headlamp Control Unit Replacement | Bentayga and Flying Spur | 20,21,22,24,25,26MY. Customer statement / workshop findings: Headlamp low beam / high beam malfunction / operational issues (Inner lamp) Or Daytime running light malfunction / operational issues (Inner lamp) Or Turn signal malfunction / operational issues (Outer lamp)
2078962/42026-04-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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.
2081236/12026-04-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER; ENGINE. Loss of Cabin Heat During Engine Operation | Bentayga - V8. Customers may report that the air conditioning system blows only cold air when the engine is running. Warm air is only available after switching off the engine. The concern is commonly reported after engine removal or recent repair work.
2081243/12026-04-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Service Info: Engine Control Module (ECM) 5V Reference Circuits. This TPI provides supplementary technical information to support diagnosis of ECM 5V reference circuit DTCs. It details the sensors associated with each reference circuit (A, B, and C) and outlines relevant guidance to assist in isolating faults when any of the following DTCs are stored in the Engine Electronics (diagnostic address: 0001)
2081085/12026-04-04. Service bulletin. ENGINE; ELECTRICAL SYSTEM. V8 Engine - Ticking Noise, Misfiring and Possible Low Oil Pressure Indications. 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.
2081198/12026-04-02. Service bulletin. ELECTRICAL SYSTEM. BYOC Tablets - USB Media Source Not Available (NAR Only). The customer may report that Rear Seat Entertainment BYOC tablets cannot play content from a USBC memory stick because the USB source does not appear in the source menu.
2080955/12026-03-06. Service bulletin. ELECTRICAL SYSTEM. Guide on My Bentley App - Error MBB.HTTP.2 When Using Remote Services. Customer Statement: Customers may report that the My Bentley App displays an MBB.HTTP.2 error when attempting to use remote services such as Remote Climate or Remote Charging. The functions fail to initiate from the app.
2058484/152026-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; ENGINE. Bentayga V8 Kovomo - DTC P310B00 with Symptom Code 2638 - Check Engine Lamp - Fuel Pressure Regulation. Customer statement / workshop findings: Engine warning lamp is illuminated within the Driver Instrument Panel (DIP) in conjunction with the DTC as detailed below: •“P310B00 with symptom code 2638 - Low Fuel Pressure Regulation” There may also be multiple DTC’s and symptoms present due to fuel pressure regulation or fuel supply issues in conjunction with the afore mentioned symptom/DTC
2080901/12026-03-06. Service bulletin. ELECTRICAL SYSTEM. Sporadic entries - Nano connector contact testing. Condition: Sporadic entries in control units that use Nanotype terminals, including the airbag control unit J234, the engine control unit J623 and the emergency call and communication unit J949. These may be accompanied by intermittent electrical behaviour or repeated DTCs after earlier diagnostic checks.
2080489/22026-03-05. Service bulletin. VISIBILITY/WIPER; ELECTRICAL SYSTEM. Front window one-touch open/close function inoperative - DTCs evident in 0042/0052.
2080757/12026-03-05. Service bulletin. ELECTRICAL SYSTEM. TSR Media, Radio and Audio Output - Not Functional. Customer Statement: 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.
2078962/32026-03-05. Service bulletin. ENGINE; 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. To support initial fault diagnosis, a best practice guide is attached to this TPI. It provides recommended checks and troubleshooting steps to help resolve common issues encountered during BiL updates

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.