GM service campaign N252528241
What it saysCertain vehicles may have a condition in which the vehicle experiences a reduction in deceleration during a low-speed ABS braking event when the road surface transitions from smooth to rough surfaces. NHTSA’s full summary ↓
GM filed this with NHTSA as a service campaign dated May 4, 2026, about the service brakes. It names 3 model years across Chevrolet and Cadillac (2025–2026). 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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · Cadillac.
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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.
Certain vehicles may have a condition in which the vehicle experiences a reduction in deceleration during a low-speed ABS braking event when the road surface transitions from smooth to rough surfaces. Dealers are to reprogram the Brake System Control Module. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N252528241 | Service campaign | May 4, 2026 | 11032066 | PDF, 568 KB |
What the document itself lists
The manufacturer titles it “N252528241 - Service Update”.
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9108109 | Brake System Control Module Reprogramming with SPS | 0.3 hrs |
Read by machine from the document NHTSA serves (4 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.
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 themChevrolet 2 model years
Cadillac 1 model year
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 3 model years this bulletin names have filed 504 complaints with NHTSA since 2015. 76 of them name Service Brakes — 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 Saturday, August 29, 2026, at approximately 12:00 PM, I was driving my 2026 Chevrolet Equinox EV RS on the highway at about 65 mph. The weather conditions were clear and sunny. Without warning, the vehicle's automatic emergency braking (AEB) system abruptly engaged with full force, causing a severe and sudden deceleration.
2026 Chevrolet Equinox · Service Brakes · filed with NHTSA Aug 31, 2026 · ODI 11761002
My 2026 Cadillac OPTIQ experienced two brake-system failures. The second occurred on September 14, 2026. The vehicle displayed brake-system warnings and braking performance was impaired. The vehicle previously received a brake-system-control-module reprogramming in August.
2026 Cadillac Optiq · Service Brakes · filed with NHTSA Sep 24, 2026 · ODI 11766574
In depth: 2025 Chevrolet Equinox brake 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 service brakes
Source: same model, same component group12 other manufacturer communications filed against these GM models under the same component group (service brakes), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N262545360-01 | Service campaign | Oct 20, 2026 | Service Update. Certain vehicles listed above may experience a condition in which the Anti-Lock Braking System (ABS) may be perceived as ac… |
| N262545360 | Service campaign | Oct 7, 2026 | Service Update. Certain vehicles listed above may experience a condition in which the Anti-Lock Braking System (ABS) may be perceived as ac… |
| N252528241-01 | Service campaign | Jul 23, 2026 | Certain vehicles listed above may have a condition in which the vehicle experiences a reduction in deceleration during a low-speed ABS braki… |
| N252519910 | Service campaign | Aug 27, 2025 | Certain vehicles may have a condition in which the Front Right Brake Line Fitting is torqued under specification. Dealers are to tighten the… |
| N252494220 | Service campaign | Jun 26, 2025 | Service Update. Certain vehicles listed above may have a condition in which braking performance is reduced, vehicle top speed is limited, a… |
| 25-NA-030 | Service bulletin | Feb 13, 2025 | This service bulletin provides repair information to correct a customer concern of hearing a squeak type noise when applying the brake pedal… |
| 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… |
| PIT5696H | Service bulletin | Dec 6, 2024 | This preliminary information discusses potential for a code C0010.5A to store in the brake controller which appears to be setting falsely or… |
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 Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N252528241 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 N252528241 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 N252528241 cover?
The manufacturer filed it against 3 model years across 2 brands (Chevrolet and Cadillac): 2026 Cadillac Optiq, 2026 Chevrolet Equinox, 2025 Chevrolet Equinox. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.