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Service bulletin 20454432

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10110886
Published by NHTSA2017-08-10
Manufacturer's number20454432
Manufacturer's date2016-10-18
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM

NHTSA's summary

Bentayga - Battery Energy Control Module 2 software update (ASW 09.03) (SC16/27)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, 12-volt battery, Software

Vehicles listed
BENTLEY BENTAYGA2016
BENTLEY BENTAYGA2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
2051562/122024-04-06. Service bulletin. 12 Volt - Battery condition checks. Customer statement / workshop findings: 12 volt battery flat or unserviceable Technical background: For all 12 volt battery issues relating to warranty or a parts warranty claim refer to the instructions within the Measure section.
2051562/72021-10-05. Service bulletin. 12 Volt - Battery condition checks. Customer statement / workshop findings: 12 Volt Battery test instruction Technical background: For all 12 volt battery issues relating to warranty or a parts warranty claim, a DISS query MUST be raised prior to battery replacement, refer to the instructions within the Measure section of this TPI
2055643/22020-08-07. Service bulletin. Software incompatibilty between J775 (Address 74) - J924 (Address D4) and J1096 (Address D5). Customer statement / workshop findings After replacing the software or hardware for the Adaptive suspension control unit (J775 Diagnostic address 74) or the Front Roll stabilisation control unit (J924 Diagnostic address D4) and/or the Rear Roll stabilisation unit (J1096 Diagnostic address D5) the software could be incompatible between the control units Technical background The Adaptive air suspension control unit (J775) functions as a universal control unit for the chassis control systems. The Adaptive air suspension control unit (J775) controls several functions in the car in particular the master for the active roll control system, The control unit contains developed suspension and damping control software. Should one of the modules be replaced for example (J775) on an early model vehicle the newer software contained within the replacement control unit may not be compatible with (J924) and/or (J1096)
2055643-12019-09-23. Service bulletin. Software incompatibilty between J775 (Address 74) - J924 (Address D4) and J1096 (Address D5)
2053719-22019-09-23. Service bulletin. Bentayga - Infotainment unit software update (SC19/12)
205155312018-10-01. Service bulletin. Bentayga W12 - Bentley dynamic ride system fault displayed in Driver Instrument Panel
2051562.12018-07-16. Service bulletin. 12 Volt - Battery condition checks
2050225.12018-03-12. Service bulletin. Engine and Transmission software validation (ASW 09.22) (SC18/01)
204364072017-02-09. Service bulletin. SOFTWARE UPDATE ABS (SC16/04)
2027022/72017-01-12. Service bulletin. NEW CONTINENTAL GT - GTC AND FLYING SPUR - STEERING WHEEL NOISE