GM bulletin 22-NA-095
What it saysThis service bulletin provides repair information to correct a customer concern of hearing a front brake squeal noise during light brake pedal application. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Oct 2, 2023, received May 31, 2022, about the service brakes — 4 documents under this number. It names 5 model years across Chevrolet and Buick (2020–2022). 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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · Buick.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
This service bulletin provides repair information to correct a customer concern of hearing a front brake squeal noise during light brake pedal application.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 22-NA-095 | Service bulletin | Oct 2, 2023 | 10244278 | PDF, 104 KB |
| 22-NA-095 | Service bulletin | Sep 12, 2023 | 10243750 | PDF, 104 KB |
| 22-NA-095 | Service bulletin | May 20, 2022 | 10213249 | PDF, 101 KB |
| 22-NA-095 | Service bulletin | May 13, 2022 | 10212930 | PDF, 101 KB |
What the document itself lists
The manufacturer titles it “Front Brake Squeal Noise Heard During Light Brake Pedal Application”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 19356408 | — | — | |
| 19356409 | — | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 2486228 | Remove and Reinstall Front Disc Brake Pads, Apply Grease | 1 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. 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 themChevrolet 2 model years
Buick 3 model years
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 5 model years this bulletin names have filed 494 complaints with NHTSA since 2015. 79 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 the 2020 Buick Encore, the 14 owners who gave an odometer reading for Service Brakes reported it at a median of 1,476 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Intermittent Service Brake Assist Light with very hard brake pedal and almost no breaks backing up. Have had it to several shops who said it was a turbo booster issue so scheduled service with Patriot GMC Boyertown Pa. Also intermittently has little to no power causing driving hazard suddenly especially uphill.
2021 Buick Encore · Service Brakes · filed with NHTSA May 27, 2026
The contact owns a 2022 Chevrolet Trailblazer. The contact stated while driving 20 MPH and attempting to stop the vehicle, the brake pedal was depressed to the floorboard and the vehicle failed to come to a complete stop. After the failure, the "Service ESC" and "Service Power Steering" messages were displayed.
2022 Chevrolet Trailblazer · Service Brakes · filed with NHTSA Nov 14, 2023
The ABS and stability control systems crash without warning. Randomly on a trip the check engine light randomly comes on without warning and immediately my break system stops being effective. I have to put full force on the brake pedal to start breaking the vehicle and coming to a stop becomes difficult.
2021 Chevrolet Trailblazer · Service Brakes · filed with NHTSA Mar 15, 2022
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 group6 other manufacturer communications filed against these GM models under the same component group (service brakes), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 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… |
| 24-NA-072 | Service bulletin | Nov 8, 2024 | This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 20-NA-121 | Service bulletin | Feb 27, 2024 | This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant to correct customer con… |
| PIC5704H | Service bulletin | Feb 19, 2024 | This Preliminary Information communication provides information to the technician about vehicles that had the Brake Pressure Modulator Valve… |
| 19-NA-223 | Service bulletin | Oct 3, 2023 | This service bulletin provides information for dealers/technicians on a normal characteristic of Brake Pedal - Excessive Click Noise with Sl… |
| 22-NA-097 | Service bulletin | Sep 19, 2023 | This technical bulletin provides a procedure to test and replace the brake pedal to correct a customer concern that the cruise control will… |
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 Buick, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 22-NA-095 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-095 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.
Which vehicles does 22-NA-095 cover?
The manufacturer filed it against 5 model years across 2 brands (Chevrolet and Buick): 2022 Buick Encore, 2021 Buick Encore, 2020 Buick Encore, 2022 Chevrolet Trailblazer, 2021 Chevrolet Trailblazer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built 20 Mar 2020 – 15 Feb 2022; built after 14 Feb 2022 — the build date is on the certification label in the driver’s door jamb.