GM bulletin 23-NA-086
What it saysThis informational bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Feb 12, 2025, received May 10, 2023, about the exterior lighting — 6 documents under this number. It names 30 model years across Chevrolet, GMC and Buick (2020–2025). 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 · Buick.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis informational bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-NA-086 | Service bulletin | Feb 12, 2025 | 11014377 | PDF, 175 KB |
| 23-NA-086 | Service bulletin | Oct 26, 2024 | 11011117 | PDF, 175 KB |
| 23-NA-086 | Service bulletin | Aug 22, 2024 | 11007940 | PDF, 175 KB |
| 23-NA-086 | Service bulletin | Apr 25, 2024 | 11000154 | PDF, 121 KB |
| 23-NA-086 | Service bulletin | Nov 2, 2023 | 10245352 | PDF, 76 KB |
| 23-NA-086 | Service bulletin | May 3, 2023 | 10236072 | PDF, 56 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 2086668 | Verifying Dark Spots in Headlamp Pattern When Vehicle is Pulled Up to a Wall or Garage | 0.2 hrs |
Read by machine from the document NHTSA serves (3 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.
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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 14 model years
GMC 2 model years
Buick 14 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 30 model years this bulletin names have filed 1,989 complaints with NHTSA since 2015. 50 of them name Exterior Lighting, Equipment — 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.
Driving home tonight there was a car in front of me so my low beams were on. I saw a deer approaching from the right side of the roadway while at the same time dropping down into a small dip in the road and because the headlights are so low I lost sight of the deer as it was then in the shadows with no illumination because the headlights…
2022 Chevrolet Traverse · Exterior Lighting · filed with NHTSA Dec 28, 2022
The driver and infotainment center is so dim during the day that it is dangerous to drive the vehicle. I have taken the vehicle in to the dealer 3 times and each time the dealer indicates that there doesn't appear to be a problem, but at no time to my knowledge have they taken the vehicle out into the sunlight, There have been 2 Software…
2025 GMC Acadia · Exterior Lighting · filed with NHTSA Jul 21, 2025
The contact owns a 2022 Buick Enclave. The contact stated that while driving at various speeds, the daytime running lights failed to function as intended. No warning light was illuminated. Additionally, the contact stated that occasionally, while shifted into reverse, the rearview camera failed to display an image as intended.
2022 Buick Enclave · Exterior Lighting · filed with NHTSA Aug 29, 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 exterior lighting
Source: same model, same component group21 other manufacturer communications filed against these GM models under the same component group (exterior lighting), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 661.50 | Over-the-air update | Jun 17, 2026 | • Surround Vision Recorder, a new feature that allows you to record, watch, and save video from your vehicle's cameras. • Security Recording… |
| 25-NA-074 | Service bulletin | Sep 4, 2025 | Some customers may comment on rear body structure stop lamp or rear closure signal lamp may be totally inoperative or staying illuminated. |
| 25-NA-028 | Service bulletin | Apr 1, 2025 | This technical bulletin provides repair information to correct a customer concern of Blazer EV Turn Signal Fast Flash. |
| 25-NA-073 | Service bulletin | Mar 28, 2025 | This technical bulletin provides Approach Lighting Exterior and Interior Operation information and procedures. |
| PIT6280A | Service bulletin | Feb 13, 2025 | This Preliminary information communicates that a dealer may install the perimeter rocker lighting kit and find that it will not illuminate.… |
| 01-08-42-001Q | Service bulletin | Jan 27, 2025 | This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines. |
| PIT6308 | Service bulletin | Dec 17, 2024 | This Preliminary information communicates information about if the rear tail lamp is inoperative to cycle the fuse. If the tail lamp is work… |
| PIE0801D | Service bulletin | Dec 5, 2024 | This engineering information (EI) closure ends the need for gathering further information from technicians in regard to the right and/or lef… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet, GMC and Buick, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 23-NA-086 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 23-NA-086 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 23-NA-086 cover?
The manufacturer filed it against 30 model years across 3 brands (Chevrolet, GMC and Buick): 2025 Buick Enclave, 2024 Buick Enclave, 2023 Buick Enclave, 2022 Buick Enclave, 2025 Buick Encore, 2024 Buick Encore and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.