Porsche bulletin No. 2328.1
What it saysInstructions on advanced technical information for the Macan and Cayenne - front window motor without function NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Mar 18, 2024, received Apr 3, 2024, about the visibility/wiper. It names 9 model years (2020–2023). 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 Macan and Cayenne - front window motor without function
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 2328.1 | Service bulletin | Mar 18, 2024 | 10252572 | PDF, 648 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 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 8 model years this bulletin names have filed 107 complaints with NHTSA since 2015. 28 of them name Electrical System, Visibility/Wiper — 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.
In-car entertainment, transmissions controls, audio controls, climate controls (front and rear) , car will shut off without turning the key in off position, often times the vehicle will just terminate a call with no warning - no explantion, the rear camera on the screen in reverse show the rear of the car but it stays on for like 10…
2023 Porsche Cayenne · Electrical System · filed with NHTSA Jan 7, 2025 · ODI 11634723
Battery completely discharged and the safety switch in the battery malfunctions and battery can not be charged again. There are many complaints seen online about the battery problems Porsche has. This strands the car and me the driver. The dealer and independent mechanics said the same.
2021 Porsche Cayenne · Electrical System · filed with NHTSA Aug 6, 2026 · ODI 11755286
The drivers side wiper leaves a streak at drives eye level during most rain events. My dealer has replaced the wiper 3 times but this has not fixed the issue. My Dealer has verified this is happening and verified this happens on all Porsche Cayenne vehicles of this age and model.
2023 Porsche Cayenne · Visibility/Wiper · filed with NHTSA May 30, 2024 · ODI 11591516
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 visibility/wiper
Source: same model, same component group30 other manufacturer communications filed against these Porsche models under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| No. 34-26 | Service bulletin | Sep 29, 2026 | Manufacturer's Certificate for Approval: Wheels and Tires. Note that this bulletin covers MY25+ 911 GT3, GT3 Touring, and GT3 S/C |
| No. 96-26 | Service bulletin | Sep 24, 2026 | Symptom-based workshop manual for Noises from Front Wiper Blade |
| No. 37-26 | Service bulletin | Sep 22, 2026 | Symptom based workshop manual for Information Messages Regarding Assistance System Failures, Fault Memory Entry: Implausible Chassis Number… |
| 43-26 | Warranty extension | Sep 1, 2026 | Technical Information for Warranty Extension for Front Door Wiring Harness related to Real Top View (RTV) issues |
| No. 80-26 | Service bulletin | Aug 25, 2026 | Symptom-based workshop manual for Reworking Squeaking and/or Creaking Noises from the Panoramic Roof Area - Roof Module and Roof Trim Panel |
| WTL3 | Service campaign | Aug 21, 2026 | Technical Information for Workshop Campaign WTL3 - Replacing Seal for Roof Module. Note that this Campaign is only applicable to all Cayenne… |
| No. D765 | Service bulletin | Feb 17, 2026 | Parts information for parts withdrawal involving the Window regulator motor. The part numbers affected are PAB959801 and PAB959802. The vehi… |
| No. 57-25 | Service bulletin | Jan 29, 2026 | Technical information for Sporadic Error Message "Tail Light Defective" in the Instrument Cluster or Brake Lights Lighting up after Locking |
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. 2328.1 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. 2328.1 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. 2328.1 cover?
The manufacturer filed it against 9 model years: 2023 Porsche Cayenne, 2022 Porsche Cayenne, 2021 Porsche Cayenne, 2020 Porsche Cayenne, 2023 Porsche Macan, 2022 Porsche Macan and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.