Porsche bulletin No. 2116.3
What it saysInstructions on advanced technical information for the red warning on the instrument cluster. NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Mar 1, 2024, received Apr 2, 2024, about the seat belts. It names 25 model years (2017–2024). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationInstructions on advanced technical information for the red warning on the instrument cluster. Occupant seat belt not fastened.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 2116.3 | Service bulletin | Mar 1, 2024 | 10252433 | PDF, 194 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.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2020 Porsche Redundant Cayenne E-Hybrid.
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 24 model years this bulletin names have filed 444 complaints with NHTSA since 2015. 1 of them name Seat Belts — 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.
I own a 2022 Porsche Cayenne. The vehicle intermittently displays a red “Occupant seat belt not fastened – Fasten seat belt” warning and sounds the seat belt warning chime while the front passenger seat is completely unoccupied and nothing is placed on the seat.
2022 Porsche Cayenne · Seat Belts · filed with NHTSA Oct 3, 2026 · ODI 11768707
The contact owns a 2021 Porsche Cayenne. The contact stated that while driving at various speeds, the front driver's side seat belt independently tightened and loosened. The emergency light illuminated, and a seat belt warning chime sounded continuously.
2021 Porsche Cayenne · Seat Belts · filed with NHTSA Aug 31, 2026 · ODI 11760839
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 seat belts
Source: same model, same component group8 other manufacturer communications filed against these Porsche models under the same component group (seat belts), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| No. 61-26-1 | Service bulletin | Sep 30, 2026 | Symptom-based workshop manual for Noises in B-Pillar Area - Correct Felting of B-Pillar Trim Panel |
| No. 10-26 | Service bulletin | Mar 11, 2026 | Symptom based workshop manual involving the Belt Lock Warning on Driver's Side Permanently Active in Conjunction with Fault Memory Entry wit… |
| WSR9 | Service campaign | Oct 30, 2025 | Porsche intranet posting with information on WSR9 - Stop Delivery - Checking position of front three-point seat belts and reworking if neces… |
| No. D736 | Service bulletin | Sep 13, 2025 | Parts information for parts withdrawal involving the belt latch - part numbers 992857756E & 992857755D. The vehicles affected are cars that… |
| No. 32-24-3 | Service bulletin | Mar 14, 2024 | Technical information for ARA2 - checking and if necessary replacing three-point belt on rear left and right |
| No. 32-24-2 | Service bulletin | Mar 14, 2024 | Technical information for ARA2 - checking and if necessary replacing three-point belt on rear left and right |
| No. 32-24-1 | Service bulletin | Mar 14, 2024 | Technical information for ARA2 - checking and if necessary replacing three-point belt on rear left and right |
| No. 99-23-2 | Service bulletin | Jul 27, 2023 | Technical information for APA9 - replace screw connection for seat belt mount at rear left and/or right |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Porsche, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Porsche No. 2116.3 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 No. 2116.3 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 Porsche warranty extension on file lists the ones Porsche has filed.
Which vehicles does No. 2116.3 cover?
The manufacturer filed it against 25 model years: 2024 Porsche 911, 2023 Porsche 911, 2022 Porsche 911, 2021 Porsche 911, 2020 Porsche 911, 2024 Porsche Cayenne and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.