GM bulletin N232425850
What it saysService Update - Certain vehicles may have a condition in which the fuel tank fuel pump module manifold connector is not completely clipped to fuel pump housing. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Jan 22, 2024, received Jan 23, 2024, about the fuel/propulsion system. It names 4 model years across Chevrolet and GMC (2023–2024). 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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC.
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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.
Service Update - Certain vehicles may have a condition in which the fuel tank fuel pump module manifold connector is not completely clipped to fuel pump housing. Dealers are to replace the Fuel Tank Fuel Pump Module.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N232425850 | Service bulletin | Jan 22, 2024 | 10249137 | PDF, 92 KB |
What the document itself lists
The manufacturer titles it “N232425850 - Service Update”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 85623231 | Fuel Pump Module Kit | — | eBay Motors → |
| 86820975 | Fuel Pump Module Kit | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9107100 | Fuel Tank Fuel Pump Module Replacement (Includes: Drain and Fill Tank) Silverado… | 1.3 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches GM’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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the tank assembly for the 2023 Express →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.
Model years it names
Source: as the manufacturer filed themChevrolet 2 model years
GMC 2 model years
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 databaseOwners of the 4 model years this bulletin names have filed 739 complaints with NHTSA since 2015. 150 of them name Electrical System, Fuel/Propulsion 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 XXX, at midday, in the Haggen parking lot in , I unlocked the passenger door with the silver exterior door button. At that moment the side-view camera display glitched, and afterwards the exterior door buttons stopped working. The key fob and the interior door buttons still worked.
2024 Chevrolet Silverado · Electrical System · filed with NHTSA Oct 17, 2026 · ODI 11771845
The car always turns on the slippery road warning light when I drive over 60 miles per hour and the wheels lock up. Sometimes, the ABS warning light also comes on, along with error messages saying 'Service Traction Control' and 'Service StabiliTrak'
2023 Chevrolet Express · Electrical System · filed with NHTSA Jul 4, 2025 · ODI 11671263
In depth: 2024 Chevrolet Silverado 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 fuel/propulsion system
Source: same model, same component group48 other manufacturer communications filed against these GM models under the same component group (fuel/propulsion system), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N262558690-02 | Service campaign | Sep 23, 2026 | General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power… |
| N262558690 | Service campaign | Sep 16, 2026 | General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power… |
| N242452131-02 | Emissions | Sep 11, 2026 | Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023-2024 model year Chevrolet Colorad… |
| N262558690-01 | Service campaign | Sep 1, 2026 | Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition whic… |
| N242452130-01 | Service campaign | Aug 4, 2026 | Certain vehicles may have a condition in which the Engine Control Module (ECM) does not sufficiently control fuel injector flow rate under c… |
| N252516900-01 | Emissions | Feb 19, 2026 | Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition whi… |
| N252516900 | Emissions | Feb 5, 2026 | Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition whi… |
| N252526151 | Service campaign | Nov 4, 2025 | Service Update. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this wer… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet and GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N232425850 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 N232425850 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 GM warranty extension on file lists the ones GM has filed.
Which vehicles does N232425850 cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and GMC): 2023 Chevrolet Express, 2024 Chevrolet Silverado, 2023 GMC Savana, 2024 GMC Sierra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.