GMC service campaign N242473130
What it saysOn certain vehicles, there may be debris/machining chips in the rear knuckles. NHTSA’s full summary ↓
GMC filed this with NHTSA as a service campaign dated Nov 14, 2024, about the service brakes. It names 1 model year (2025). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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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. On certain vehicles, there may be debris/machining chips in the rear knuckles. Dealers will inspect, and if necessary, retap the rear brake caliper bracket threads.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N242473130 | Service campaign | Nov 14, 2024 | 11010535 | PDF, 413 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 11603633 | Rear Brake Caliper Bracket Bolt | — |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches GMC’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.
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 13 complaints with NHTSA since 2015.
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 service brakes
Source: same model, same component group7 other manufacturer communications filed against the GMC Hummer EV under the same component group (service brakes), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N252499750 | Service campaign | Apr 14, 2025 | Certain vehicles listed above may have a condition in which the front brake lines are below torque specification. Dealers will inspect and i… |
| 24-NA-048 | Service bulletin | Feb 6, 2025 | This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engine… |
| 25-NA-003 | Service bulletin | Jan 30, 2025 | This service bulletin provides repair information to correct a customer concern of a rattle type noise heard from the brake pedal area. |
| 24-NA-045 | Service bulletin | Dec 19, 2024 | This informational bulletin provides information on Pop/Creak Type Noise While Sitting Stationary and Turning Steering Wheel with Brakes App… |
| PIT6296 | Service bulletin | Dec 9, 2024 | This Preliminary information communicates that a software update will be released to correct a false setting U164E from setting in the elect… |
| 23-NA-149 | Service bulletin | Oct 26, 2024 | This technical bulletin provides a procedure to correct the condition of Trailer Brake Disabled and/or DTC C1114 Stored During Pulling a Tra… |
| PIT6212B | Service bulletin | Oct 25, 2024 | This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system causing a voltage spike i… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GMC N242473130 a recall?
No. A service campaign 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 N242473130 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does N242473130 cover?
The manufacturer filed it against 1 model year: 2025 GMC Hummer EV. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.