GM bulletin 24-NA-151
What it saysThis technical bulletin provides repair information to correct a customer concern of Loose Roof Ditch Molding. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Apr 16, 2025, received Aug 30, 2024, about the structure — 4 documents under this number. It names 4 model years across Chevrolet and GMC (2024–2025). 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.
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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 Loose Roof Ditch Molding.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24-NA-151 | Service bulletin | Apr 16, 2025 | 11019381 | PDF, 424 KB |
| 24-NA-151 | Service bulletin | Mar 5, 2025 | 11015621 | PDF, 424 KB |
| 24-NA-151 | Service bulletin | Dec 12, 2024 | 11012888 | PDF, 425 KB |
| 24-NA-151 | Service bulletin | Aug 9, 2024 | 11006717 | PDF, 342 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 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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 948 complaints with NHTSA since 2015. 27 of them name Structure — 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 1/20/26, we purchased a ‘24 Chevy Silverado EV from a Chevrolet dealership. 2 days later, on 1/22/26, while my husband was driving on the interstate, the tonneau cover partially detached and flew backwards lifting upwards and flapping violently.
2024 Chevrolet Silverado · Structure · filed with NHTSA Jan 26, 2026
While on freeway going 75 mph, GMC installed soft tonneau cover came loose from forward anchor points and starting flapping loudly in wind and without quickly stopping would have flown off truck and hit surrounding vehicles
2024 GMC Sierra · Structure · filed with NHTSA May 1, 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 structure
Source: same model, same component group56 other manufacturer communications filed against these GM models under the same component group (structure), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N262547670 | Service campaign | Apr 20, 2026 | Certain vehicles listed above may have a condition in which there are splits in the cab door ring in the rear outboard side of the roof ditc… |
| 25-NA-114 | Service bulletin | May 8, 2025 | This informational bulletin provides information on Anti-Chip Coating Appearance. |
| PIE0834 | Service bulletin | May 3, 2025 | This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer lis… |
| 23-NA-097 | Service bulletin | Apr 23, 2025 | This service bulletin provides a procedure to correct a customer concern of Upper Glove Box Door does not Open when the Button is Depressed… |
| N242484500 | Service campaign | Apr 10, 2025 | Certain 2024 Chevrolet Silverado EV WT vehicles may have a condition in which the left and right rear door wiring is defective and the rear… |
| 19-NA-255 | Service bulletin | Mar 11, 2025 | This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peel… |
| 25-NA-022 | Service bulletin | Mar 7, 2025 | This technical bulletin provides a procedure to correct the condition of Driver Window Stuck or Intermittent Operation Concerns. |
| 25-NA-034 | Service bulletin | Feb 26, 2025 | This technical bulletin provides a procedure to correct the condition of Hood Open Message Displayed. |
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-151 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-151 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-151 cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and GMC): 2025 Chevrolet Silverado, 2024 Chevrolet Silverado, 2025 GMC Sierra, 2024 GMC Sierra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.