Infiniti bulletin P4A43
What it saysP4A43 | REVISION 1 QUALITY ACTION ***** Retailer Announcement ***** To ensure continued client satisfaction and confidence, INFINITI is conducting a retailer inventory quality action to reprogram the Engine Control… NHTSA’s full summary ↓
Infiniti filed this with NHTSA as a service bulletin dated Feb 19, 2025, received Feb 25, 2025, about the engine — 2 documents under this number: IPSB 15-286 (2 filings). It names 1 model year (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 communicationP4A43 | REVISION 1 QUALITY ACTION ***** Retailer Announcement ***** To ensure continued client satisfaction and confidence, INFINITI is conducting a retailer inventory quality action to reprogram the Engine Control Module (ECM) on certain specific 2025 INFINITI QX80 vehicles identified in Service Comm and National Service History. Owners of affected vehicles may experience an extended crank time when starting the engine. Please follow the attached instructions to remedy any vehicles affected by this retailer inventory quality action. ***** What Retailers Should Do ***** PLEASE FOLLOW THE ATTACHED REPAIR INSTRUCTIONS: 1. Verify if vehicles are affected by this quality action using Service Comm or DBS National Service History – Open Campaign I.D. P4A43 • New vehicles in retailer inventory can also be identified by using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). Refer to IPSB 15-286 for additional information • Some vehicles may still be in transit. Please continue to check newly arriving inventory for QA applicability. 2. Use the attached procedure to remedy any vehicles affected by this quality action prior to sale. 3. Once remedied, retailers should submit the applicable warranty claim for the action performed so it can be closed in Service Comm and release the vehicle for sale. ***** Retailer Responsibility ***** It is the retailer’s responsibility to check Service Comm or DBS National Service History – Open Campaign using the appropriate campaign I.D for the inspection status on each affected vehicle currently in new vehicle inventory.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| IPSB 15-286 | Service bulletin | Feb 19, 2025 | 11014478 | PDF, 1,869 KB |
| IPSB 15-286 | Service bulletin | Feb 19, 2025 | 11014476 | PDF, 1,868 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 1 model year this bulletin names have filed 8 complaints with NHTSA since 2015. 2 of them name Electrical System — 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.
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 group3 other manufacturer communications filed against the Infiniti QX80 under the same component group (engine), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| ITB25-001A | Service bulletin | Mar 11, 2025 | EXTENDED CRANK BEFORE STARTING IF YOU CONFIRM The client states there is an extended crank before the engine starts. ACTION 1. Confirm the c… |
| ITB25-001 | Service bulletin | Feb 12, 2025 | EXTENDED CRANK BEFORE STARTING APPLIED VEHICLES: 2025 QX80 (Z63) IF YOU CONFIRM The client states there is an extended crank before the engi… |
| P3A06 2023 QX80 | Service bulletin | Jun 2, 2023 | Fan Coupling Nut Torque Inspection ***** Retailer Announcement ***** INFINITI is conducting a retailer inventory quality action on certa… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Infiniti, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Infiniti P4A43 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 P4A43 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 P4A43 cover?
The manufacturer filed it against 1 model year: 2025 Infiniti QX80. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.