GM bulletin 24-NA-002
What it saysThis bulletin advises the technician to check the shifter cable for a noise that may be the cause of the customers concern and not to replace the transmission for this issue. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Feb 23, 2024, received Feb 29, 2024, about the power train. It names 4 model years across Chevrolet and GMC (2023–2024). 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.
Get the next GM bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis bulletin advises the technician to check the shifter cable for a noise that may be the cause of the customers concern and not to replace the transmission for this issue.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24-NA-002 | Service bulletin | Feb 23, 2024 | 10250788 | PDF, 53 KB |
What the document itself lists
The manufacturer titles it “Whine Noise from Transmission Area”.
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 3088088 | Install Shifter Cable Weight | 0.4 hrs |
Read by machine from the document NHTSA serves (2 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.
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.
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
GMC 2 model years
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new GM bulletins for one of these models
A weekly email, sent only in a week when GM files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 533 complaints with NHTSA since 2015. 13 of them name Power Train — 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.
I bought a 2024 Colorado Trail Boss on May 31 and after a week the truck broke down I made a stop in a T intersection, once I had a clear path I started to accelerate and in that moment the truck jerked and at the same time I heard a loud noise under the back of the car.
2024 Chevrolet Colorado · Power Train · filed with NHTSA Jul 23, 2024 · ODI 11603945
The valve body on GM's 8 speed transmission is a known fail point for many GM truck owners. I believe the NHTSA should investigate this for the extreme risk of an accident. My truck has been inoperable for a month awaiting a back ordered part.
2024 GMC Canyon · Power Train · filed with NHTSA Jul 17, 2024 · ODI 11602956
While slowly driving, like when parking or trying to park vehicle in garage, it will randomly surge when almost at complete stop forcing vehicle to lunge forward requiring operator to apply quick additional firm braking.
2023 GMC Canyon · Power Train · filed with NHTSA Jan 9, 2024 · ODI 11564448
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 group42 other manufacturer communications filed against these GM models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N262556930-01 | Service campaign | Jun 17, 2026 | Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked. Dealers are to replace the transfer case. |
| N262556930 | Service campaign | Jun 2, 2026 | Certain vehicles may have a condition in which the transfer case drive chain sprocket is cracked. Dealers are to replace the transfer case. |
| N252517790 | Service campaign | Oct 14, 2025 | Certain vehicles, equipped with 8L80 or 8L90 Transmissions, may have a condition in which the reaction carrier cracks. Dealers are to replac… |
| PIE0824A | Service bulletin | May 10, 2025 | This engineering information (EI) closure ends the need for gathering further information from field in regard to fluid leaking at the outpu… |
| 24-NA-078 | Service bulletin | May 7, 2025 | This bulletin advises the tech to replace the starter and not the trans if grinding or growling is heard from the transmission area. |
| PIE0824 | Service bulletin | Mar 27, 2025 | This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer lis… |
| 23-NA-185 | Service bulletin | Mar 25, 2025 | This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concer… |
| PIP5966A | Service bulletin | Mar 2, 2025 | This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement |
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 GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 24-NA-002 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-002 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 24-NA-002 cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Colorado, 2023 Chevrolet Colorado, 2024 GMC Canyon, 2023 GMC Canyon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.