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Manufacturer communication · Service campaign

Bentley service campaign ED44

Bentley filed this with NHTSA as a service campaign dated Sep 9, 2025, received Jul 1, 2025, about the electrical system — 4 documents under this number: 2077790/4, 2077790/3, 2077790/2, 2077790/1. It names 1 model year (2024). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.

What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

OBC Charging Efficiency MIL HW / SW Update (NAR Only) | Bentayga (Hybrid) | 24MY. A Software update and gateway hardware change are required for Plug-in Hybrid vehicles built prior to BIL 5.5 This update must be applied to update the vehicles on board charger (OBC). Diagnostic address (00C6). The update resolves the potential triggering of the following fault: • "Control unit defective" error 0x100200 low_power_efficiency (TI=B200000) is registered in the OBC. Repeated occurrences of the identified error will result in MiL illumination.

Manufacturer campaign id ED44 Kind Service campaign Manufacturer date Sep 9, 2025 Received by NHTSA Jul 1, 2025 Components Electrical System, Fuel/Propulsion System, Power Train First dated Jun 5, 2025

Documents filed under this number

DocumentKindDatedNHTSA idAt NHTSA
2077790/4Service campaignSep 9, 202511023955not yet checked
2077790/3Service campaignAug 21, 202511022207not yet checked
2077790/2Service campaignJul 2, 202511020935not yet checked
2077790/1Service campaignJun 5, 202511020019not yet checked

The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.

Model years it names

Source: as the manufacturer filed them

A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.

Common questions

Source: NHTSA, 49 CFR 579.5

Is Bentley ED44 a recall?

No. A service campaign is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.

Is the ED44 repair free?

A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.

Which vehicles does ED44 cover?

The manufacturer filed it against 1 model year: 2024 Bentley Bentayga. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.