Nissan bulletin P4A17
What it says*****Dealer Announcement***** Nissan is conducting a service campaign on certain specific MY2018-2025 Nissan LEAF vehicles identified in Service Comm and National Service History – Open Campaigns. NHTSA’s full summary ↓
Nissan filed this with NHTSA as a service bulletin dated Oct 30, 2024, received Jan 3, 2025, about the visibility/wiper — 2 documents under this number: NTB24-048 (2 filings). It names 8 model years (2018–2025). 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 communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
What it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
*****Dealer Announcement***** Nissan is conducting a service campaign on certain specific MY2018-2025 Nissan LEAF vehicles identified in Service Comm and National Service History – Open Campaigns. On affected vehicles, at temperatures below -10°C/14°F, use of the blower motor at full speed can cause the defrost function to operate at a low electrical current and trigger failsafe logic. This may result in reduced defrost performance. Dealers will update the HVAC control software. *****What Dealers Should Do***** 1. Verify if vehicles are affected by this service campaign using Service Comm or DBS National Service History – Open Campaigns I.D. P4A17 • New vehicles in dealer inventory can also be identified using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). Refer to NPSB 15-460 for additional information • Please continue to check newly arriving inventory for campaign applicability. 2. If a retailed vehicle affected by this Campaign ID visits the dealer for service, the dealer should inform the customer about the service campaign and communicate that the updated software is available. 3. Once remedied, dealers should submit the applicable warranty claim for the action performed so it can be closed in Service Comm and release the vehicle to the customer.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| NTB24-048 | Service bulletin | Oct 30, 2024 | 11012290 | PDF, 152 KB |
| NTB24-048 | Service bulletin | Oct 29, 2024 | 11012291 | PDF, 6,640 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 themA 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 databaseOwners of the 8 model years this bulletin names have filed 684 complaints with NHTSA since 2015. 22 of them name Visibility/Wiper — 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.
Today I received a recall notice - 22v0-048 - regarding the defrosting and defogging systems. As currently programmed, the defroster limits visibility out of the windshield under cold conditions. The solution proposed by Nissan is reminiscent of the Apollo 13 instructions, complicated and difficult to follow by normal humans.
2019 Nissan Leaf · Visibility/Wiper · filed with NHTSA Apr 3, 2023 · ODI 11515144
The windshield of my Nissan Leaf spontaneously cracked without being hit by anything externally. Upon inspection, it's pretty clear that the windshield didn't crack because of anything hitting it from the outside (which is what the dealer claimed), since the outside of the windshield is still completely smooth.
2023 Nissan Leaf · Visibility/Wiper · filed with NHTSA Aug 13, 2023 · ODI 11538218
The dealership without our knowledge or approval did an update on our car last November that makes the heater and more importantly defroster not work when it's colder than about 17F degrees outside. This causes the vehicle to fog up all over including the windshield making it dangerous to drive.
2021 Nissan Leaf · Visibility/Wiper · filed with NHTSA Nov 15, 2025 · ODI 11699598
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 visibility/wiper
Source: same model, same component group4 other manufacturer communications filed against the Nissan Leaf under the same component group (visibility/wiper), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| NTB26-016 | Service bulletin | Mar 31, 2026 | DEFROST FEATURES UNAVAILABLE IN APP DUE TO SHORTING TERMINAL POSITION APPLIED VEHICLES: 2026 LEAF (ZE2) APPLIED DATES: Built on or before Au… |
| NTB17-019H | Service bulletin | Apr 30, 2024 | WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions o… |
| NTB13-028I | Service bulletin | Apr 30, 2024 | REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previ… |
| NTB09-081K | Service bulletin | Apr 30, 2024 | WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulleti… |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Nissan P4A17 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 P4A17 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 P4A17 cover?
The manufacturer filed it against 8 model years: 2025 Nissan Leaf, 2024 Nissan Leaf, 2023 Nissan Leaf, 2022 Nissan Leaf, 2021 Nissan Leaf, 2020 Nissan Leaf and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2018-2025 Nissan LEAF: built 29 Sep 2017 – 18 Sep 2024 — the build date is on the certification label in the driver’s door jamb.