Porsche bulletin No. 1403.1
What it saysInstructions on advanced technical information for a squeak and or rattle from the dash or instrument cluster area on the Boxsters, Caymans, and 911s. NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Nov 4, 2024, received Dec 4, 2024, about the steering. It names 40 model years (2016–2024). 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 a squeak and or rattle from the dash or instrument cluster area on the Boxsters, Caymans, and 911s.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 1403.1 | Service bulletin | Nov 4, 2024 | 11011184 | PDF, 496 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: 2017 Porsche 718 Boxster S; 2018 Porsche 718 Boxster S; 2019 Porsche 718 Boxster S; 2017 Porsche 718 Cayman S; 2018 Porsche 718 Cayman S; 2019 Porsche 718 Cayman S; 2021 Porsche Cayman GT4; 2021 Porsche Cayman GTS; 2017 Porsche Redundant Boxster; 2020 Porsche Redundant Boxster; 2021 Porsche Redundant Boxster; 2022 Porsche Redundant Boxster; 2021 Porsche Redundant Cayman; 2022 Porsche Redundant Cayman; 2023 Porsche Redundant Cayman GT4; 2022 Porsche Redundant Cayman GTS.
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 71 complaints with NHTSA since 2015.
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 steering
Source: same model, same component group9 other manufacturer communications filed against these Porsche models under the same component group (steering), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SPTL2609 | Service bulletin | Sep 14, 2026 | Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available |
| 87/20 4812 | Service bulletin | Jun 19, 2026 | Noise Symptom - Creaking Noise can be Heard When Touching the Steering Wheel Cover: Reworking Front Steering Wheel Cover (SY 87/20) |
| No. 99-25 | Service bulletin | Dec 17, 2025 | Technical information on Temporary Vibrations on the Steering Wheel, Particularly During Sporty Driving |
| No. D733 | Service bulletin | Aug 18, 2025 | Parts information for parts withdrawal involving (PAD423051B) the Steering Gear with Track Rods. The vehicles affected are cars that use the… |
| WSF7 | Service campaign | Jul 11, 2025 | Porsche intranet posting with information on WSF7 Workshop campaign - Re-programming power steering control unit (EPS) |
| No. 230-24 | Service bulletin | Apr 8, 2025 | Technical information for a Yellow Warning Message "Power Steering Faulty - Adapted Driving Permitted" in Conjunction with Fault Memory Entr… |
| D711 | Service bulletin | Mar 7, 2025 | Parts Information - Parts Withdrawal - Steering Gear |
| WPR3 | Service bulletin | Apr 10, 2024 | Porsche intranet posting with information on workshop campaign WPR3 - replacing gearshift paddles |
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. 1403.1 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. 1403.1 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. 1403.1 cover?
The manufacturer filed it against 40 model years: 2024 Porsche 718, 2023 Porsche 718, 2022 Porsche 718, 2021 Porsche 718, 2020 Porsche 718, 2024 Porsche 911 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.