GM bulletin 24-NA-176
What it saysThis technical bulletin provides repair information to correct a customer concern of Turn Signal Over Cancelling. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Apr 18, 2025, received Sep 28, 2024, about the electrical system — 6 documents under this number. It names 11 model years across Chevrolet, GMC and Buick (2023–2025). 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.
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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 Turn Signal Over Cancelling.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24-NA-176 | Service bulletin | Apr 18, 2025 | 11019459 | PDF, 839 KB |
| 24-NA-176 | Service bulletin | Mar 14, 2025 | 11017036 | PDF, 836 KB |
| 24-NA-176 | Service bulletin | Feb 26, 2025 | 11015217 | PDF, 836 KB |
| 24-NA-176 | Service bulletin | Feb 13, 2025 | 11014564 | PDF, 836 KB |
| 24-NA-176 | Service bulletin | Sep 24, 2024 | 11009480 | PDF, 835 KB |
| 24-NA-176 | Service bulletin | Aug 30, 2024 | 11008092 | PDF, 835 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 2887938 | Reprogram the BCM for Turn Signal Over Correcting | 0.3 hrs |
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 6 model years
GMC 4 model years
Buick 1 model year
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 11 model years this bulletin names have filed 1,522 complaints with NHTSA since 2015. 336 of them name Electrical System, 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.
My Traverse prompted me to do an update - I did- and all my cameras stopped working- took to dealership - they tried to do a Manuel update and locked up the whole system- and the USB’s stopped working - 4 weeks later waiting on new system and no answer in site for when parts will be in - contacted GM and they escalated issue - told to be…
2025 Chevrolet Traverse · Electrical System · filed with NHTSA Jul 22, 2025
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
While driving the blindside indicators will come on when nothing is there. The window switches and door lock button on the driver side door will not work when the blindside indicators are on. Also the light on the door lock button turns on and off randomly when the indicators are on with nothing there.
2023 Chevrolet Colorado · Electrical System · filed with NHTSA Dec 9, 2023
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 group240 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. |
| 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. |
| 22-NA-083 | Service bulletin | May 17, 2025 | This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty. |
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 Buick, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 24-NA-176 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 24-NA-176 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 24-NA-176 cover?
The manufacturer filed it against 11 model years across 3 brands (Chevrolet, GMC and Buick): 2025 Buick Enclave, 2024 Chevrolet Blazer, 2024 Chevrolet Colorado, 2023 Chevrolet Colorado, 2025 Chevrolet Equinox, 2024 Chevrolet Equinox and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.