GM bulletin N23-240353
What it says'Your vehicle keeps getting better. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Sep 5, 2023, received Sep 8, 2023, about the back over prevention. It names 2 model years across Chevrolet and GMC (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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communication'Your vehicle keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: â¢Updates made to ensure a seamless connection upon startup with SiriusXM.â â¢Updates made to the Radio Favorites functionality on the steering wheel to prevent unwanted interruption of user experience. â¢A variety of other minor software updates to make your driving and in-vehicle experience better. Better Never Stops⢠(There may be future updates under this same release number.)
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N23-240353 | Service bulletin | Sep 5, 2023 | 10242072 | PDF, 94 KB |
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.
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Model years it names
Source: as the manufacturer filed themChevrolet 1 model year
GMC 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 2 model years this bulletin names have filed 708 complaints with NHTSA since 2015. 96 of them name 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.
While in traffic over 45 miles per hour, the vehicle placed itself into a hazard mode due to the electric vehicle propulsion system. This happened so fast and the deceleration rate was so quick that it risked a rear end collision. This is the second time this has happened and both were following a heavy rain storm.
2024 Chevrolet Silverado · Electrical System · filed with NHTSA Jul 19, 2025
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 back over prevention
Source: same model, same component group14 other manufacturer communications filed against these GM models under the same component group (back over prevention), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 17-NA-331 | Service bulletin | Jan 17, 2025 | Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temp… |
| PIT5907D | Service bulletin | Dec 11, 2024 | This Preliminary information communicates a issue where the park assist module can set current communication dtc's due to a timing issue and… |
| PIT5697D | Service bulletin | Dec 4, 2024 | This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview… |
| PIT6289 | Service bulletin | Nov 21, 2024 | This Preliminary information communicates information that Engineering is aware of a concern where the collision / detection alert changes f… |
| PIP5847B | Service bulletin | Nov 17, 2023 | This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine noise due to excessive w… |
| PIT6047B | Service bulletin | Aug 17, 2023 | This Preliminary information communicates to dealership technicians to create a USB file that will have the radio ignore the BCM message for… |
| PIT6044A | Service bulletin | Aug 9, 2023 | This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes. |
| PIT6018C | Service bulletin | Aug 8, 2023 | This Preliminary information communicates the possibility of a resetting of some information modules prior to delivery. |
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 N23-240353 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 N23-240353 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 N23-240353 cover?
The manufacturer filed it against 2 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado, 2024 GMC Sierra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.