Cadillac bulletin N232413240
What it saysService Update - vehicles may have a condition in which the air conditioning hoses are twisted. NHTSA’s full summary ↓
Cadillac filed this with NHTSA as a service bulletin dated Oct 16, 2023, received Oct 17, 2023, about the visibility/wiper. It names 2 model years (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.
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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 - vehicles may have a condition in which the air conditioning hoses are twisted. Dealers are to inspect the air conditioning hoses and repair if necessary.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N232413240 | Service bulletin | Oct 16, 2023 | 10244176 | PDF, 479 KB |
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.
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Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2024 Cadillac Redundant Lyriq.
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 1 model year this bulletin names have filed 22 complaints with NHTSA since 2015.
The gauge cluster/infotainment screen dims automatically when the light sensor on the dash senses the environment has gotten darker. The problem is that this happens extremely early at dusk/dark hours when it's still fairly bright outside, and the brightness of the screen is too dim to see things clearly.
2023 Cadillac Lyriq · Visibility/Wiper · filed with NHTSA Dec 13, 2024 · ODI 11630577
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 group9 other manufacturer communications filed against these Cadillac models under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the Cadillac list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 24-NA-164 | Service bulletin | Mar 20, 2025 | This bulletin provides information on Wiper Blade Maintenance Tips. |
| 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. |
| 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. |
| PIE0769D | Service bulletin | Jul 25, 2024 | This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer lis… |
| PIE0769C | Service bulletin | Feb 26, 2024 | This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer lis… |
| PIC6537A | Service bulletin | Jan 17, 2024 | This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a… |
| PIC6537 | Service bulletin | Jan 12, 2024 | This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a… |
| PIC6497A | Service bulletin | Sep 5, 2023 | This Preliminary information communicates that a click or tick noise may be heard when adjusting HVAC temperatures. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Cadillac N232413240 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 N232413240 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 N232413240 cover?
The manufacturer filed it against 2 model years: 2023 Cadillac Lyriq, 2024 Cadillac Redundant Lyriq. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.