GM bulletin PIT5909C
What it saysThis Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Oct 24, 2024, about the structure. It names 33 model years across Chevrolet and GMC (2019–2025). 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 Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT5909C | Service bulletin | Oct 24, 2024 | 11009094 | PDF, 26 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 12 model years
GMC 21 model years
Also filed against model years this site has no page for: 2022 GMC Hummer EV Pickup.
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 32 model years this bulletin names have filed 6,735 complaints with NHTSA since 2015. 250 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.
Tailgate opens by itself, a know issue by GM and Sierra drivers. Mine was damaged by opening and banging against my travel trailer. I have been talking with GM about this since September. Today a different department told me they require up to 30 days to investigate and if I pay for the repairs myself they will cancel the investigation.
2023 GMC Sierra · Structure · filed with NHTSA Dec 4, 2023 · ODI 11558402
The contact owns a 2023 GMC Sierra 2500. The contact stated that his son informed him that there was a puddle of water in the rear seat. The vehicle was taken to the dealer, where it was diagnosed that the upper track for the rear sliding window was fractured on both sides, causing water to leak inside the vehicle.
2023 GMC Sierra 2500HD · Structure · filed with NHTSA Apr 3, 2025 · ODI 11652530
There is a current safety recall N232426400 on GMC pickups including the year of my truck. GMC is saying that my VIN is not covered by the recall. However, I have the multi-pro tailgate and it came open about 6 months ago on its own as i was backing up and it caused me to run into my trailer with the tailgate.
2020 GMC Sierra 3500HD · Structure · filed with NHTSA Aug 1, 2024 · ODI 11605969
In depth: 2023 GMC Sierra body and structure problems → · 2022 GMC Sierra body and structure problems →
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 group77 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. |
| 24-NA-029 | Service bulletin | May 2, 2025 | This informational bulletin provides information on HUMMER EV Water Leak Diagnostic Tips. |
| 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… |
| 24-NA-151 | Service bulletin | Apr 16, 2025 | This technical bulletin provides repair information to correct a customer concern of Loose Roof Ditch Molding. |
| 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… |
| PIE0826 | Service bulletin | Apr 5, 2025 | This engineering information (EI) is requesting pictures from technicians in regard to center hood molding being loose and/or potentially de… |
| 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… |
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 PIT5909C 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 PIT5909C 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 PIT5909C cover?
The manufacturer filed it against 33 model years across 2 brands (Chevrolet and GMC): 2025 Chevrolet Silverado, 2024 Chevrolet Silverado, 2023 Chevrolet Silverado, 2022 Chevrolet Silverado, 2021 Chevrolet Silverado, 2025 Chevrolet Silverado 2500HD and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.