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Service bulletins for the 2021 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.

757 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
2059612/72026-04-05. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Home Charging Unit PIN code - Bentayga Hybrid and Flying Spur Hybrid. Customer statement / workshop findings: Bentley Home Charging Unit – Unable to recollect Personal Identification Number (PIN). Unable to charge High Voltage Battery with Bentley Home Charging Unit.
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)
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)
2081029/12026-04-04. Service bulletin. ENGINE; ELECTRICAL SYSTEM. W12 Engine - Ticking Noise and Possible Low Oil Pressure Indications. The customer may report a ticking noise from the upper engine area, low oil pressure warnings, or a flashing MIL during engine operation.
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.
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
2051562/152026-03-06. Service bulletin. ELECTRICAL SYSTEM. 12 volt - Battery condition checks - Battery replacement requirements. Customer statement / workshop findings: 12 volt battery flat or unserviceable
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.
2075331/42026-03-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Engine light in the DIP - Various oxygen sensor / Fuel ratio DTC's logged within the Engine Control Module(s)
2075318/42026-03-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine light in the DIP - Various Camshaft adjuster DTC's logged within the Engine Control Module(s).
2051562/142026-03-03. Service bulletin. ELECTRICAL SYSTEM. 12 volt - Battery condition checks - Battery replacement requirements. Condition: 12 volt battery flat or unserviceable
2079115/12026-02-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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. Workshop Findings: Customer statement can be verified and the following entries may be logged within the engine control unit. • P029900: Turbo/Super Charger Under-boost, passive/sporadic.
2078373/22026-02-04. Service bulletin. STRUCTURE:BODY; VISIBILITY/WIPER; ELECTRICAL SYSTEM. Sunroof blind not retracting | Bentayga Series | 17-26MY. Condition: 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.
2079669/12026-02-04. Service bulletin. ELECTRICAL SYSTEM. Questionnaire For All Technical Connected Car Queries. Condition: This questionnaire is designed to gather all necessary information from retailers before escalating a technical request through DISS for connected car related issues.
2078190/42026-01-29. 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.
2071190/32026-01-08. Service bulletin. ENGINE; VISIBILITY/WIPER; ELECTRICAL SYSTEM. HVAC failing to cool | DTC B16A1F0 in diagnostic address 00C5 | Bentayga Series (Hybrid) | 23MY - 25MY.
2075922/32026-01-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. High pitched whistle from the engine - Warning light within the DIP - Engine not running smoothly - Numerous DTC's.
2065926/52026-01-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Fuel pressure regulator - DTC P242200 with symptom code 14536 evident within address 0001. Customer statement: The warning lamp for the emission control system is displayed within the DIP
2077982/22026-01-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Exhaust Flap Control Unit - Various DTCs | Bentayga Series | 17-25MY. Condition: Warning lamp illuminated within the Driver Instrument Panel (DIP) “Drive system fault. Contact your Bentley dealer”
2061369/112026-01-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine Overheating - Warning in the DIP | V8 Kovomo. 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
2071239/52026-01-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine Overheating - Coolant Pump Leaking and Low Coolant Warning | W12. Condition: One or a combination of the following is evident: • Coolant leaking from the mechanical coolant pump • Coolant witness marks on the mechanical coolant pump although coolant is not leaking/dripping from the pump • Low coolant level warning displayed within the DIP
2075318/32026-01-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine light in the DIP - Various Camshaft adjuster DTC's logged within the Engine Control Module(s). Condition: Engine light in the DIP - Various Camshaft adjuster DTC’s logged within the Engine Control Module(s)
2068946/112026-01-07. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM; POWER TRAIN. Dynamic ride system warning visible - DTC P0B2500 logged within address 0021 (Battery Energy Control Module 2). Customer statement: Bentley dynamic ride system fault is displayed within the Drivers Instrument Panel (DIP)
2055664/32026-01-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM. DTC P14AB00 and/or other related exhaust flap DTC's - Warning lamp evident within the DIP.

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