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Manufacturer communication · Service bulletin

Honda bulletin A26-032

What it saysCertain 2024 Prologue vehicles may have improperly installed or missing cavity plugs from the rear chassis harness electrical connector. NHTSA’s full summary ↓

Honda filed this with NHTSA as a service bulletin dated Jun 26, 2026, received Jul 1, 2026, about the electrical system. It names 1 model year (2024). 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 Bulletin - Certain 2024 Prologue vehicles may have improperly installed or missing cavity plugs from the rear chassis harness electrical connector.

Kind Service bulletin Manufacturer date Jun 26, 2026 Received by NHTSA Jul 1, 2026 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
A26-032Service bulletinJun 26, 202611034197PDF, 3,351 KB

What the document itself lists

The manufacturer titles it “Product Update: 2024 Prologue Rear Chassis Harness Connector Cavity”.

Part the bulletin names

Part numberDescriptionQtyFind it
38899-REV-A01BEV POI Oil Type PZ1eBay Motors →

Labour operations and the time the manufacturer allows

OperationDescriptionTime
7375A7Inspect chassis harness connector cavity plugs. Reinstall connector cavity plug(s)0.6 hrs
7375A8Inspect chassis harness connector cavity plugs. Replace connector cavity plug(s)0.6 hrs
85098329A For photo submission to Tech Line if parts order is declined - add0.1 hrs
7371FEReplace the chassis harness (includes inspection, Tech Line contact, photos & DTC clear)1.4 hrs
7371FGReplace the chassis & body harness (includes inspection, Tech Line contact, photos &…23 hrs

Read by machine from the document NHTSA serves (20 pages), read Oct 4, 2026. A part number is shown only where it matches Honda’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

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 1 model year this bulletin names have filed 865 complaints with NHTSA since 2015. 171 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.

On 13 August 2024 I was driving my 2024 Honda Prologue when the DIC and infotainment screens went blank. At this time with no information displayed on any screen, the car was unsafe to operate. I drove the car straight to the local dealer, Tony Honda. The dealer was unable to diagnose the problem.

2024 Honda Prologue · Electrical System · filed with NHTSA Jan 16, 2025 · ODI 11636299

In depth: 2024 Honda Prologue electrical problems →

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 electrical system

Source: same model, same component group

10 other manufacturer communications filed against the Honda Prologue under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Honda list.

NumberKindDatedNHTSA’s summary
ONL6WM092026POtherSep 25, 2026Owner Notification Letter - Certain 2024 Prologue vehicles may have improperly installed, or missing cavity plugs from the rear chassis harn…
AEBM06262026902OtherJun 26, 2026Dealer Message - Due to improper manufacturing, the rear chassis harness connector may not be properly sealed and only partially seated. An…
ONL6MH04202024OtherApr 20, 2026Owner Notification Letter - The software update includes several system improvements designed to enhance the functionality of certain vehicl…
APOC04172026901OtherApr 17, 2026Dealer Message -American Honda is requesting parts in support of a quality investigation related to Rear View Camera part number 86583111. A…
AEBM04012026905OtherApr 2, 2026Dealer Message - During the manufacturing process, insufficient silicone was applied to the DC-DC converter which may lead to excessive heat…
A26-051Service bulletinApr 2, 2026Service Bulletin - Insufficient silicone application to the DC-DC converter can result in excessive heat exposure during charging, leading t…
A25-054Service bulletinAug 1, 2025Service Bulletin - Customers are experiencing issues with OnStar and HondaLink due to the software within the telematics control unit needin…
A25-051Service bulletinAug 1, 2025Service Bulletin - The A11 Radio Control Module requires an update due to various electronic issues.

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

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

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Honda A26-032 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 A26-032 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. Every Honda warranty extension on file lists the ones Honda has filed.

Which vehicles does A26-032 cover?

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