GM bulletin 12-08-51-002Q
What it saysThis informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Oct 7, 2024, received Nov 14, 2024, about the structure. It names 44 model years across Chevrolet and GMC (2016–2025). 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 informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 12-08-51-002Q | Service bulletin | Oct 7, 2024 | 11010546 | PDF, 1,084 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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Model years it names
Source: as the manufacturer filed themChevrolet 20 model years
GMC 24 model years
and 3 more on this site: 2018 GMC Sierra, 2017 GMC Sierra, 2016 GMC Sierra.
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 43 model years this bulletin names have filed 13,229 complaints with NHTSA since 2015. 220 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 the 2017 Chevrolet Silverado, the 19 owners who gave an odometer reading for Structure reported it at a median of 7,500 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
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
I purchased my truck in august 2016. I noticed a vibration from 70-80 MPH. Very noticeable in the steering wheel and more recently in the driver seat. It's been to the dealer twice. They picoscoped (service tool) to isolate the vibration. Performed lots of balancing, new tires, drive shaft, differential (ring & pinion).
2016 Chevrolet Silverado · Structure · filed with NHTSA Nov 3, 2016
I originally bought a new 2019 Chevrolet Silverado 1500 ld on 06/08/2019, I really liked the truck and its many features. After several weeks I noticed the whole underside frame and driveline components were rusted and corroded. I brought it back to my dealer and they immediately located a replacement vehicle for me.
2019 Chevrolet Silverado · Structure · filed with NHTSA Jul 25, 2019
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 group81 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-127 | Service bulletin | May 16, 2025 | This technical bulletin provides a procedure to correct the condition of Air Inlet Panel Extension Assembly May Become Disengaged After Hood… |
| 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… |
| 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… |
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 12-08-51-002Q 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 12-08-51-002Q 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 12-08-51-002Q cover?
The manufacturer filed it against 44 model years across 2 brands (Chevrolet and GMC): 2025 Chevrolet Colorado, 2024 Chevrolet Colorado, 2023 Chevrolet Colorado, 2022 Chevrolet Colorado, 2021 Chevrolet Colorado, 2020 Chevrolet Colorado and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.