GM bulletin 23-NA-163
What it saysThis technical bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Mar 13, 2025, received Oct 16, 2023, about the electrical system — 4 documents under this number. It names 99 model years across Chevrolet, GMC, Buick and Cadillac (2018–2025). 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 · Buick · Cadillac.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis technical bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set.
Trouble codes it names: B3924 B3925 B3926 B3927 B3928 B389A 1 of 6 read from the document itself
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-NA-163 | Service bulletin | Mar 13, 2025 | 11016946 | PDF, 352 KB |
| 23-NA-163 | Service bulletin | Aug 13, 2024 | 11007723 | PDF, 349 KB |
| 23-NA-163 | Service bulletin | Nov 15, 2023 | 10245582 | PDF, 195 KB |
| 23-NA-163 | Service bulletin | Sep 18, 2023 | 10244175 | PDF, 217 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 13518569 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13518570 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13518602 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13518603 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13519619 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13519620 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13519648 | BMPNs eligible for this bulletin | — | eBay Motors → |
| 13527252 | — | — | |
| 13527260 | — | — | |
| 13527261 | — | — | |
| 13527297 | — | — | |
| 13527298 | — | — | |
| 13527827 | — | — | |
| 13529492 | — | — | |
| 13529493 | — | — | |
| 13533809 | — | — | |
| 13533813 | — | — | |
| 13533814 | — | — | |
| 13533817 | — | — | |
| 13533821 | — | — |
Read by machine from the document NHTSA serves (7 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 46 model years
and 5 more on this site: 2021 Chevrolet Traverse, 2020 Chevrolet Traverse, 2019 Chevrolet Traverse, 2018 Chevrolet Traverse, 2019 Chevrolet Volt.
Also filed against model years this site has no page for: 2020 Chevrolet Trailblazer.
GMC 16 model years
and 8 more on this site: 2019 GMC Canyon, 2024 GMC Terrain, 2023 GMC Terrain, 2022 GMC Terrain, 2021 GMC Terrain, 2020 GMC Terrain, 2019 GMC Terrain, 2018 GMC Terrain.
Buick 15 model years
and 7 more on this site: 2021 Buick Encore, 2020 Buick Encore, 2020 Buick Envision, 2019 Buick Envision, 2019 Buick LaCrosse, 2020 Buick Regal, 2019 Buick Regal.
Cadillac 22 model years
and 13 more on this site: 2024 Cadillac XT5, 2023 Cadillac XT5, 2022 Cadillac XT5, 2021 Cadillac XT5, 2020 Cadillac XT5, 2019 Cadillac XT5, 2018 Cadillac XT5, 2025 Cadillac XT6, 2024 Cadillac XT6, 2023 Cadillac XT6, 2022 Cadillac XT6, 2021 Cadillac XT6, 2020 Cadillac XT6.
Also filed against model years this site has no page for: 2021 Cadillac CT6.
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 97 model years this bulletin names have filed 8,058 complaints with NHTSA since 2015. 3,572 of them name Engine, Electrical System — 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 Chevrolet Equinox, the 55 owners who gave an odometer reading for Engine reported it at a median of 5,938 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
There are crackling sounds coming from the wheel when going over humps. no power while driving or changing lanes it's worst when the ac is on, was burning gas like crazy, and shakes at 65 mph., the gas while escalating makes a clicking noise like 2 iron knocking together, and the dashboard including the radio, and telephone screens goes…
2021 Chevrolet Colorado · Electrical System · filed with NHTSA Jul 25, 2023
Engine problem loss of power intermittently no reverse. They replaced clutch parts seals, piston, rings, plates, and plates. Had Vehicle for about 22 days. Driving home after repairs completed. Cluster display- instrument panel went out. Called Dealer and Cadillac assistance. Says there nothing they can do until Cadillac releases a fix.
2024 Cadillac XT5 · Engine · filed with NHTSA Jun 24, 2024
On February 4, 2026, my wife drove to the bank, a trip of about 10 to 15 minutes, and turned off the car at the ATM. When she tried to leave, the vehicle wouldn't start. After a while, she opened and closed the door and locked and unlocked the car twice with the remote control, and the vehicle started and she was able to drive, but all…
2024 Chevrolet Blazer · Electrical System · filed with NHTSA Feb 5, 2026
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 group295 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 |
|---|---|---|---|
| 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… |
| 24-NA-227 | Service bulletin | Nov 4, 2025 | This technical bulletin provides repair information to correct a customer concern of Vibration Rattle or Boom at 1800 to 2000 RPM. |
| 18-NA-180 | Service bulletin | Sep 4, 2025 | This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information. |
| 23-NA-119 | Service bulletin | Sep 3, 2025 | This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is… |
| 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. |
| PIE0829A | Service bulletin | Jun 5, 2025 | This engineering information (EI) closure ends the need for gathering further information from technicians in regard to the liftgate not ope… |
| 24-NA-272 | Service bulletin | Jun 5, 2025 | This technical bulletin provides repair information to correct a customer concern of Park Assist False Alerts on Z71 Traverse. |
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, Buick and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 23-NA-163 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-163 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 23-NA-163 cover?
The manufacturer filed it against 99 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2024 Buick Enclave, 2023 Buick Enclave, 2022 Buick Enclave, 2021 Buick Enclave, 2020 Buick Enclave, 2019 Buick Enclave and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.