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
| 2051187/6 | 2021-10-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Poor Engine Running Complaints (Misfires) Petrol Engines Only. Customer statement / workshop findings: Poor engine running, reduced power, engine warning lamp illuminated. Technical background: Technical Product Information (TPI) to assist Retailers when diagnosing poor engine running or misfire. Measure: The following TPI should be carried out sequentially to ensure the root cause and analysis of the concern are identified without unnecessary work or repetitive actions taking place. |
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| 2055321/2 | 2021-09-04. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga W12 - DTC 310B00 - Low fuel pressure regulation. Customer statement / workshop findings: Engine stalling when the engine is started from cold (at idle) Or after a delayed cold start. These issues can trigger DTC 310B00: Low Fuel Pressure regulation, Fuel pressure outside specification The following symbol can also be displayed on the Driver Instrument Panel (DIP) in conjunction with an error message start/stop unavailable |
| 2053348/4 | 2021-09-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. W12 Engine management light on - Turbocharger speed sensor DTCs stored. Customer statement / workshop findings - The engine management light is on. Workshop findings: The customer statement can be reproduced. Either of the following DTCs are stored in address 01 Engine Control Module 1 or address 11 Engine Control Module 2 |
| 2062080/3 | 2021-08-07. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Bentayga V8 Kovomo - Fuel Pressure Regulation. Customer statement / workshop findings Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) with one or multiple DTCs as detailed below: - P310B00 with symptom code 2636 - Low Fuel Pressure Regulation Low Fuel Pressure Regulation - P014800 Fuel Deliver Error - P019100 Fuel Rail pressure Sensor A Circuit Range/Performance - Misfire DTCs There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues Technical background In the event the customer complaint relates to the following: - Customer experienced poor start up - proceed with the remaining instructions |
| 2063657/1 | 2021-08-07. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. P245000 - EVAP System Switching Valve A Performance/Stuck Open DTC logged - Bentayga V8 Kovomo. Customer Statement: Emission control system warning light illuminated within the DIP (Figure 1). Workshop findings: DTC P245000 - EVAP System Switching Valve A Performance/Stuck Open - With symptom code 11952 Technical background: Refer to the Measure section of this TPI |
| 2064093/1 | 2021-08-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; STRUCTURE. Loss of the EV Mode Active Pedal Detent Feature. Customer statement / workshop findings Loss of the EV Mode Active Pedal Detent feature on the vehicle. No force can be felt by driver when passing through the EV Mode threshold during the trajectory travel of the accelerator pedal TIP: Please also refer to the Owners handbook regarding accelerator pedal feedback response before commencing with the instructions within the Measure section. Technical background Software update for 0697 - Active accelerator pedal is available (slave Control unit of 0001 - ECM1) |
| 2062261/2 | 2021-08-06. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION. Bentayga - Air suspension warning light within the DIP - DTCs P089200 - C104707 - C103B13 - Evident within Address 74. Customer statement: Air suspension warning light within the DIP Workshop findings: One or a combination of the DTCs shown below are evident within address 74 - P089200 - Symptom Code 3145792 - TCM Power Relay Sense Circuit Intermittent (Level Control Valves Open Circuit) - C103B13 - 3145909 - Solenoid for level control system Open circuit - C104707 - 3211279 - Level control valves mechanical malfunction |
| 2063954/1 | 2021-08-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Engine warning light illuminated within the DIP during acceleration - DTC P029900 evident - W12 TSI only Customer statement: Engine warning light and max engine speed 4000 rpm warning evident within the DIP during acceleration - Warning on DIP first appears when accelerating (During boost) Workshop findings: DTC P029900 evident within the engine control unit/s Technical background: One of the turbochargers may not be achieving full boost, the issue can be related to a poor connection between the applicable boost pressure valve vacuum solenoid and the signal wire to the applicable Engine Control Module (ECM) leading to a lack of vacuum supplied to the waste- gate when under load In the event the afore mentioned symptoms are evident the operative should refer to the instructions within the Measure section of this TPI in conjunction with Rep.Gr 21 - Boost pressure valve vacuum solenoid (to assist identifying the component location) |
| 2063855/1 | 2021-08-06. Service bulletin. FORWARD COLLISION AVOIDANCE; STEERING; ELECTRICAL SYSTEM. DTC B17B801 - Steering Wheel Touch Recognition Control Module electrical error - evident within address 0019 Customer statement: Lane Assist and/or Traffic Assist are not functional Workshop findings: DTC - B17B801 - Steering Wheel Touch Recognition Control Module electrical error evident within address 0019 |
| 2063296/1 | 2021-07-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Rear window blind does not operate. Customer statement / workshop findings: Rear blind does not operate. Technical background: The most common failure modes are as follows: - Rear blind does not operate following a CAN bus sleep, If the switch operation is a prolonged hold, instead of a ‘Press and release’ operation - Rear blind does not operate following loss of CM basic settings - Rear blind will also not operate if the Child Lock is on - Rear blind will cease to operate if there are repeated operations of the blind sufficient to trigger a failsafe mode (usually between 10 to 15 operations in a very short period). |
| 2063729/1 | 2021-07-02. Service bulletin. ELECTRICAL SYSTEM. Fitment of control modules from donor vehicles for test purposes. Customer statement / workshop findings: Refer to the Technical background section before considering the 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. The donor of parts should only be used as a temporary test VERY IMPORTANT: The ODIS replace routine MUST NOT be carried out under any circumstances |
| 2063099/1 | 2021-06-05. Service bulletin. ELECTRICAL SYSTEM. Bentayga Hybrid - PDC Multi switch not illuminated (SC21/16) Technical background: The PDC Multi-Switch (white backlight) illumination is not available (Figure 1)tch not illuminated (SC21/16) However When the Switches are depressed to be Active the illumination works as per specification. NOTE: The Hazard Switch backlight illumination is NOT affected The function illuminates the switches in their Passive state so the switch can be seen in dark light IMPORTANT NOTE: Figure 2 shows the white backlight operating to correct specification. Remedy: Due to a supplier error at the time of harness manufacture, the fitment of link harness 36A 971 097 is required on a small number of vehicles The link harness is required to be fitted from connector U1.1 (3 way) to connector EX54.1 (16 way) |
| 2063348/1 | 2021-06-05. Service bulletin. ELECTRICAL SYSTEM. Bentayga Hybrid - PDC Multi switch not illuminated. Customer statement / workshop findings: The PDC Multi-Switch (white backlight) illumination is not available (Figure 1) When the switches are depressed to be Active the illumination works as per specification NOTE: The hazard switch backlight illumination is NOT affected The function illuminates the switches in their Passive state so the switch can be seen in dark light IMPORTANT NOTE: Figure 1 shows the white backlight not illuminated. Technical background: Refer to the Customer statement/Workshop findings section. |
| 2053177/15 | 2021-06-04. Service bulletin. ELECTRICAL SYSTEM. All Vehicle Variants - Spurious DTC List. Customer statement / workshop findings: Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical background: The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted. |
| 2063410/1 | 2021-06-04. Service bulletin. ELECTRICAL SYSTEM. Infotainment Main unit (5F / J794) fault finding/diagnosis procedure. Customer statement / workshop findings: Issue suspected with the Infotainment Main unit (5F / J794) - For example: - MMI screen image flickers or goes blank - No response to selection - Audio cuts-out Technical background: Refer to the Measure section regarding any Infotainment Main unit (5F / J794) fault finding/diagnosis |
| 2063263/1 | 2021-06-04. Service bulletin. ELECTRICAL SYSTEM. My Bentley services - Fails to initialise (Message within the MMI). Customer statement / workshop findings: Complaints relating to My Bentley services failing to initialise Technical background: A message on the MMI stating that the My Bentley Services failed to initialise (Figure 1) when the error occurs, Connected Services may become unavailable. Measure: Refer to the Technical background section |
| 2061582/3 | 2021-06-03. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. Driver/Passenger door/s power latch creak on close. Customer statement / workshop findings: Driver or Passenger door creak during the power latch Close function Technical background: VERY IMPORTANT: Refer to the vehicle repair history to check and confirm any previous work done regarding power latch drive unit replacement noting the following: - Upon first complaint of a power door latch creaking - Replace all four power door latches - For any complaints of the same symptom that occur after this - Only replace the power door latch which is exhibiting the symptom |
| 2061369/2 | 2021-05-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Engine overheating - Warning on the DIP - V8 Kovomo Customer statement / workshop findings: - Customer reports an engine overheat warning on the DIP - Engine overheats - Unusual cooling fan operation at high temperatures - There are no signs of coolant leaks both internally or externally Technical background: To heat the engine as quickly as possible during cold starting, delivery of coolant from the coolant pump is interrupted in the warm-up phase by the solenoid valve for the mechanical coolant pump |
| 2053177/14 | 2021-05-05. Service bulletin. ELECTRICAL SYSTEM. All Vehicle Variants - Spurious DTC List. Customer statement / workshop findings: Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical background: The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted |
| 2063070/1 | 2021-05-05. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Bentayga - Auxiliary tail lights in bumper operating instead of main tail lights when not intended |
| 2062667/1 | 2021-04-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Bentayga Speed - SVM update for Address 0017 - Dash Board - During PDI (SC 21/12) Technical background: Software update required to diagnostic address 0017 Dash Board. Remedy: SVM coding is now available for address 0017 Dash Board The update is required to eliminate a communication related message from appearing within the DIP as shown in Figure 1 |
| 2062080/2 | 2021-04-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga V8 Kovomo - Fuel Pressure Regulation. Customer statement / workshop findings: Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) with one or multiple DTCs as detailed below: - P310B00 with symptom code 2636 - Low Fuel Pressure Regulation Low Fuel Pressure Regulation - P014800 Fuel Deliver Error - P019100 Fuel Rail pressure Sensor A Circuit Range/Performance - Misfire DTCs There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues. Technical background: In the event the customer complaint relates to the following: Customer experienced poor start up - proceed with the remaining instructions NOTE: The operative must gather information regarding the Customer experience regarding when the issue occurred for example: Pre- conditions, warning lights and driveability at the time that the issue occurred, details when the vehicle was last refuelled and the grade of fuel used The operative must now use the information contained within the “Measure” section to determine the correct analysis and repair procedure |
| 2062626/1 | 2021-04-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE AND ENGINE COOLING. DTCs stored for all cylinders on Bank 1 or all cylinders on Bank 2 - W12 TSI engine derivative. Customer statement / workshop findings: - DTCs stored for all cylinders on Bank 1 or all cylinders on Bank 2 including multiple cylinder misfires DTC - Misfires logged in one or both engine control units - Engine warning light on - Erratic engine operation Technical background: Refer to the Measure section of this TPI |
| 2062365/1 | 2021-04-08. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Bentayga Hybrid DTC P103A00 evident Engine Oil Fuel Portion Too High. Customer statement: - Warning message within the DIP - The message asks the customer to warm up engine accompanied by a yellow warning (Figure 1) No other symptoms are experienced. Technical background: The warning is caused by the level of unburnt fuel in the engine oil. This value is calculated by the Engine Control Module (ECM) and is based on the driver usage pattern The more cold starts the Internal Combustion Engine (ICE) is exposed to the higher the chance of fuel making its way into the engine oil via the cylinders When the fuel calculation reaches the pre-programmed amount this then causes the DTC to be triggered |
| 2060081/2 | 2021-04-07. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Bentayga - Fuel Gauge - Guided Fault Finding DTCs B103E1B and/or B10581B evident within address 0046. Customer statement: Fuel gauge does not change during a long journey or after refuelling the vehicle and does not show full after filling the fuel tank. And/or Workshop findings: The following DTCs could be evident within diagnostic address 0046 – Comfort System Central Control Module - B103E1B: Fuel level sensor 1 Resistance too high - B10581B: Fuel level sensor 2 Resistance too high |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.