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Manufacturer communication · Service bulletin

Nissan bulletin NTB25-005

What it saysSERVICE INFORMATION If one of the APPLIED VEHICLES has DTC P2100 for “ETC MOT PWR-B1” or P2101 for “ETC FNCTN/CIRC-B1” stored in the Engine Control Module (ECM) with a customer complaint of loss of power,  Perform… NHTSA’s full summary ↓

Nissan filed this with NHTSA as a service bulletin dated Jan 13, 2025, received Jan 30, 2025, about the engine. It names 6 model years (2020–2025). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.

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What the bulletin says

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

SERVICE INFORMATION If one of the APPLIED VEHICLES has DTC P2100 for “ETC MOT PWR-B1” or P2101 for “ETC FNCTN/CIRC-B1” stored in the Engine Control Module (ECM) with a customer complaint of loss of power,  Perform the revised Electronic Service Manual (ESM) procedure noted on page 2 for "PERFORM DTC CONFIRMATION PROCEDURE." HINT: This revised procedure will be added to the ESM in a future update.

Trouble codes it names: P2100 P2101

Kind Service bulletin Manufacturer date Jan 13, 2025 Received by NHTSA Jan 30, 2025 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
NTB25-005Service bulletinJan 13, 202511013281PDF, 94 KB

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.

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What owners reported

Source: NHTSA complaint database

Owners of the 6 model years this bulletin names have filed 514 complaints with NHTSA since 2015. 14 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.

The contact owns a 2023 Nissan Sentra. The contact stated that while driving approximately 40 MPH, the vehicle stalled and unintendedly decelerated. The vehicle was driven to the parking lot and came to a complete stop. The vehicle was restarted and driven to the residence.

2023 Nissan Sentra · Engine · filed with NHTSA Mar 5, 2026 · ODI 11722181

A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.

More bulletins about the engine

Source: same model, same component group

2 other manufacturer communications filed against the Nissan Sentra under the same component group (engine), newest first.

NumberKindDatedNHTSA’s summary
PMA40OtherNov 8, 2024*****Dealer Announcement***** Nissan is committed to a high level of customer service and satisfaction. This commitment requires Nissan to p…
JD01AService bulletinSep 4, 2024ENGINE SUPPORT TOOLS APPLIED VEHICLES: 2020-2024 Sentra (B18) SERVICE INFORMATION A new Engine Support Bracket is now available to allow the…

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Nissan, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Nissan NTB25-005 a recall?

No. A service bulletin 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 NTB25-005 repair free?

Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.

Which vehicles does NTB25-005 cover?

The manufacturer filed it against 6 model years: 2025 Nissan Sentra, 2024 Nissan Sentra, 2023 Nissan Sentra, 2022 Nissan Sentra, 2021 Nissan Sentra, 2020 Nissan Sentra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.