Cadillac bulletin N222395370
What it saysOn certain vehicles, the engine wire harness may contact the brake line, and/or brake line coupler, and/or thermostat housing at rear/top of engine. NHTSA’s full summary ↓
Cadillac filed this with NHTSA as a service bulletin dated Sep 11, 2023, about the electrical system. It names 2 model years (2022–2023). 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.
Customer Satisfaction Program. On certain vehicles, the engine wire harness may contact the brake line, and/or brake line coupler, and/or thermostat housing at rear/top of engine. Dealers will install an anti-abrasion sleeve and secure the harness away from the brake line.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N222395370 | Service bulletin | Sep 11, 2023 | 10242172 | PDF, 392 KB |
What the document itself lists
The manufacturer titles it “N222395370 - Customer Satisfaction Program”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 84739990 | Brake Pipe Assembly | — | eBay Motors → |
| 86592107 | Brake Pipe Protective Sleeve | — | eBay Motors → |
| 19299570 | — | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9106814 | Inspection Add: Wire-to-Wire repair Add: Front Brake Pipe Replacement – Right Side | 1.1 hrs |
Read by machine from the document NHTSA serves (7 pages), read Sep 30, 2026. A part number is shown only where it matches Cadillac’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.
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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 2 model years this bulletin names have filed 9 complaints with NHTSA since 2015. 4 of them name Electrical System, Engine — 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.
A few days ago while driving (45mph), my 22' 4BW dash lit up like hell and I lost power steering, brakes, went into limp mode. Restarted the vehicle, all was well. I did almost take out the Mini Cooper in front of me, with a 'Baby on Board' sticker. Don't even want to think about that.
2022 Cadillac CT4 · Electrical System · filed with NHTSA Jun 12, 2023 · ODI 11526608
The vehicle shut off while driving on the feeder of the highway. Vehicle was no longer responsive and had to be towed to Central Cadillac of Houston; where later it was determined that the vehicle needed a new engine. The Vehicle is a 2023 with less than 5,000 miles on it.
2023 Cadillac CT4 · Engine · filed with NHTSA Dec 1, 2023 · ODI 11557858
The contact owns a 2022 Cadillac CT4. The contact stated that while driving approximately 60-65 MPH, the power steering and power brakes failed to operate as needed. The check engine and the crash warning lights were illuminated.
2022 Cadillac CT4 · Engine · filed with NHTSA Jan 23, 2024 · ODI 11567176
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 electrical system
Source: same model, same component group63 other manufacturer communications filed against the Cadillac CT4 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Cadillac list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 22-NA-242 | Service bulletin | Apr 24, 2025 | This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Number… |
| 24-NA-229 | Service bulletin | Apr 10, 2025 | This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system tha… |
| 25-NA-087 | Service bulletin | Apr 3, 2025 | This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs… |
| 13-08-116-001K | Service bulletin | Mar 31, 2025 | The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple custo… |
| 24-NA-098 | Service bulletin | Mar 21, 2025 | This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E440… |
| 15-06-03-001F | Service bulletin | Mar 12, 2025 | This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and te… |
| 25-NA-026 | Service bulletin | Feb 11, 2025 | This service bulletin provides repair information to correct a customer concern of Service Drivers Assist Message Illuminated, Super Cruise… |
| 23-NA-064 | Service bulletin | Jan 29, 2025 | This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Ba… |
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 N222395370 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 N222395370 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 N222395370 cover?
The manufacturer filed it against 2 model years: 2023 Cadillac CT4, 2022 Cadillac CT4. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.