GM service campaign N252492430
What it saysCertain vehicles may have a condition in which the heated windshield wiper park is inoperative. NHTSA’s full summary ↓
GM filed this with NHTSA as a service campaign dated Mar 18, 2025, about the visibility/wiper. It names 3 model years across Chevrolet and Cadillac (2024–2025). 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.
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 heated windshield wiper park is inoperative. Dealers are to reprogram the Lighting 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 |
|---|---|---|---|---|
| N252492430 | Service campaign | Mar 18, 2025 | 11015690 | PDF, 607 KB |
What the document itself lists
The manufacturer titles it “N252492430 - Service Update”.
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9107786 | Lighting Control Module Reprogramming with SPS | 0.3 hrs |
Read by machine from the document NHTSA serves (6 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 201 complaints with NHTSA since 2015. 16 of them name Visibility/Wiper — 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.
windshield leaking water inside of drivers compartment, headliner & side pillars (causing stained areas) as well as the top of onstar and electrical buttons on the overhead console . Found wet cup holder. Vehicle does not have a sun roof. GM is aware of this issue from the factory GM plant in Ramos Arizpe, Mexico.
2025 Chevrolet Blazer · Visibility/Wiper · filed with NHTSA Jun 7, 2026 · ODI 11742550
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 visibility/wiper
Source: same model, same component group14 other manufacturer communications filed against these GM models under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N252534680 | Service campaign | Jul 16, 2026 | Customer Satisfaction Program. Certain vehicles listed above may experience delamination from the foam windshield seal in higher temperatur… |
| 25-NA-045 | Service bulletin | May 6, 2025 | This service bulletin provides a procedure to correct the condition of Wiper Arm Chatter Concerns. |
| 24-NA-164 | Service bulletin | Mar 20, 2025 | This bulletin provides information on Wiper Blade Maintenance Tips. |
| 25-NA-027 | Service bulletin | Feb 7, 2025 | This service bulletin provides service procedures to correct Windshield Wiper Arm Clearing and Interference Concerns. |
| 24-NA-259 | Service bulletin | Nov 27, 2024 | This service bulletin provides a service procedure to correct customer concerns of Air Conditioning (A/C) Not Working and/or Blows Warm Air. |
| PIT6226 | Service bulletin | Sep 13, 2024 | This Preliminary information communicates that a vehicle may be encountered with windshield wipers that work on high only. The tech is direc… |
| PI0754G | Service bulletin | Jul 31, 2024 | This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic. |
| 16-NA-342 | Service bulletin | Jul 23, 2024 | This service bulletin provides a procedure to check the rearview mirror coax connector for looseness by disconnecting and reconnecting the e… |
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 N252492430 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 N252492430 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 N252492430 cover?
The manufacturer filed it against 3 model years across 2 brands (Chevrolet and Cadillac): 2025 Cadillac Optiq, 2025 Chevrolet Blazer, 2024 Chevrolet Blazer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.