Cadillac bulletin 22-NA-028
What it saysThis service bulletin provides a repair procedure to correct a customer concern of a Whining/Whirring, Whistle, Squeaking, Groaning/Growling Noise Coming from Front Wheel/Engine Area. NHTSA’s full summary ↓
Cadillac filed this with NHTSA as a service bulletin dated Mar 13, 2024, received Jun 6, 2022, about the power train — 3 documents under this number. It names 18 model years (2016–2022). 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 communicationThis service bulletin provides a repair procedure to correct a customer concern of a Whining/Whirring, Whistle, Squeaking, Groaning/Growling Noise Coming from Front Wheel/Engine Area.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 22-NA-028 | Service bulletin | Mar 13, 2024 | 10251904 | PDF, 1,170 KB |
| 22-NA-028 | Service bulletin | Oct 10, 2022 | 10225596 | PDF, 204 KB |
| 22-NA-028 | Service bulletin | May 25, 2022 | 10213505 | PDF, 204 KB |
What the document itself lists
The manufacturer titles it “Whining/Whirring, Whistle, Squeaking, Groaning/Growling Noise Coming from Front”.
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 19333514 | — | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 3087188 | — | 0.5 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.
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.
Find the driveline for the 2019 ATS →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 18 model years this bulletin names have filed 271 complaints with NHTSA since 2015. 77 of them name Power Train, Wheels — 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.
The vehicle has suffered a severe mechanical failure of the rear differential assembly, rendering it completely undrivable. This mechanical failure is a direct result of a known manufacturer defect documented in General Motors Technical Service Bulletin PIP5898/PIP5898B, regarding misoriented factory side bearing retaining snap rings…
2018 Cadillac ATS · Power Train · filed with NHTSA Oct 8, 2026 · ODI 11769806
At 45mph the right front wheel shudders. It only happens occasionally. I've checked it on very smooth roads to make sure it wasn't the conditon of the road causing the shudder. Sometimes, when the car shifts, it shifts very hard as if being bumped in the rear. I had it checked and i'm told it may be a transmission issue but not sure.
2016 Cadillac CTS · Wheels · filed with NHTSA Jul 3, 2020 · ODI 11337345
While driving vehicle slowly or in stop and go traffic, the transmission shifts very rough between the lower gears on upshifts and downshifts and will hold a gear hanging while trying to brake or accelerate and cause the vehicle to rapidly lunge forward and cause a potential accident as it becomes hard to apply more pressure to the…
2016 Cadillac ATS-V · Power Train · filed with NHTSA Oct 24, 2018 · ODI 11142383
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 power train
Source: same model, same component group43 other manufacturer communications filed against these Cadillac models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Cadillac list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N242480631-02 | Service campaign | May 27, 2025 | Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure w… |
| N242480631-01 | Service campaign | May 22, 2025 | Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure w… |
| N242480631 | Service campaign | Mar 7, 2025 | Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure w… |
| PIP5966A | Service bulletin | Mar 2, 2025 | This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement |
| 24-NA-264 | Service bulletin | Feb 13, 2025 | This bulletin helps aid the tech in possible transmission noise that may be normal or abnormal depending on the concern noted. |
| 16-NA-019 | Service bulletin | Feb 12, 2025 | This informational buleltin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flare… |
| PIP6008B | Service bulletin | Jan 9, 2025 | This Preliminary information communicates a possible retainer ring dis-lodged for a DTC P2714, may not have reverse as well. |
| 09-06-04-026Z | Service bulletin | Jan 9, 2025 | This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
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 22-NA-028 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 22-NA-028 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 22-NA-028 cover?
The manufacturer filed it against 18 model years: 2019 Cadillac ATS, 2018 Cadillac ATS, 2017 Cadillac ATS, 2016 Cadillac ATS, 2018 Cadillac ATS-V, 2017 Cadillac ATS-V and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.