GM bulletin 23-NA-074
What it saysThis technical bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak… NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Apr 3, 2025, received May 6, 2023, about the electrical system — 4 documents under this number. It names 19 model years across Chevrolet, GMC and Cadillac (2019–2023). 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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC · Cadillac.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis technical bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs.
Trouble codes it names: P0232 P023F P0641 P0651 P0697 P06A3 P07BE P07BF P1000 P1009 P129D P12A6 P12A8 P176C P2535 P2635 P3051 P3052 P3055 P305B U0074 U0077 U0121 U0131 U0151 U0415 U0420 U0672 U111A U18A2 U18C6 U18D2 U2502 U2616 all 34 read from the document itself; NHTSA’s summary names none
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-NA-074 | Service bulletin | Apr 3, 2025 | 11017508 | PDF, 260 KB |
| 23-NA-074 | Service bulletin | Dec 20, 2023 | 10248712 | not found |
| 23-NA-074 | Service bulletin | Jun 1, 2023 | 10237844 | PDF, 137 KB |
| 23-NA-074 | Service bulletin | Apr 19, 2023 | 10235769 | PDF, 112 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 84190291 | — | 1 |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 4088988 | Install three 76 mm (3”) Long Strips of Deadener to the Battery Tray Bracket | 0.9 hrs |
Read by machine from the document NHTSA serves (5 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.
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 automatic (asc) for the 2023 Blazer →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 themChevrolet 5 model years
Cadillac 9 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 19 model years this bulletin names have filed 1,598 complaints with NHTSA since 2015. 1,100 of them name Electrical System, Engine, Steering — 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 2019 GMC Acadia, the 15 owners who gave an odometer reading for Electrical System reported it at a median of 26,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owns a 2020 Chevrolet Blazer. The contact stated that while driving at various highways speeds, the vehicle was very unstable to steer and was swaying from side to side. The vehicle was taken to the local dealer who was unable to identify a failure. The manufacturer was notified of the failure, but no assistance was provided.
2020 Chevrolet Blazer · Steering · filed with NHTSA Apr 19, 2023 · ODI 11517917
We got the message that our steering may be impacted and then our temperature gauge wasn’t working nor the stop/start feature. Trip to service dealer resulted in a $1,186.14 repair for the replacement of the thermostat. This car only has 37,269 miles. We were told by service tech this is a common issue in GM models and this year of car.
2019 Cadillac XT5 · Steering · filed with NHTSA Jan 7, 2026 · ODI 11709474
On September 15,2026, my vehicle experienced a catastrophic los of power steering assist accompanied by severe heavy steering. Please review General Motors TSB 20-NA-215 & TSB 17-NA-158 both addressing this issue. My 2021 vehicle has a build date of September 19, 2020 which falls "directly" in the time frame covered by these bulletins.
2021 Cadillac XT6 · Electrical System · filed with NHTSA Oct 11, 2026 · ODI 11770401
In depth: 2020 Chevrolet Blazer electrical problems → · 2020 Chevrolet Blazer engine problems → · 2019 Chevrolet Blazer electrical problems → · 2019 GMC Acadia electrical problems →
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 group191 other manufacturer communications filed against these GM models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N262565450 | Service campaign | Oct 26, 2026 | Customer Satisfaction Program. Certain vehicles listed above may have a condition in which remanufactured high voltage battery packs were b… |
| N242468490-02 | Service campaign | May 28, 2026 | Certain vehicles may have missing cavity plugs from the rear chassis harness electrical connector. Dealers are to inspect the rear chassis h… |
| 24-NA-166 | Service bulletin | Nov 7, 2025 | This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire Pressure Monitor Senso… |
| 25-NA-074 | Service bulletin | Sep 4, 2025 | Some customers may comment on rear body structure stop lamp or rear closure signal lamp may be totally inoperative or staying illuminated. |
| 18-NA-180 | Service bulletin | Sep 4, 2025 | This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
| 25-NA-021 | Service bulletin | Jun 7, 2025 | This technical bulletin provides repair information to correct a customer concern of Radio Software Update W23E-178.1.2-M174-SQBR6-93.3. |
| 22-NA-083 | Service bulletin | May 17, 2025 | This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty. |
| 23-NA-151 | Service bulletin | May 16, 2025 | This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet, GMC and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 23-NA-074 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 23-NA-074 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 23-NA-074 cover?
The manufacturer filed it against 19 model years across 3 brands (Chevrolet, GMC and Cadillac): 2023 Cadillac XT5, 2022 Cadillac XT5, 2021 Cadillac XT5, 2020 Cadillac XT5, 2019 Cadillac XT5, 2023 Cadillac XT6 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.