Porsche bulletin 29/18 6690
Porsche filed this with NHTSA as a service bulletin dated Jun 8, 2026, received Jul 7, 2026, about the structure. It names 5 model years (2019–2023). 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 communicationTrailer hitch installation instructions
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 29/18 6690 | Service bulletin | Jun 8, 2026 | 11034580 | PDF, 1,113 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 themA 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 5 model years this bulletin names have filed 102 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 structure
Source: same model, same component group33 other manufacturer communications filed against the Porsche Cayenne under the same component group (structure), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| No. 96-26 | Service bulletin | Sep 24, 2026 | Symptom-based workshop manual for Noises from Front Wiper Blade |
| No. 90-26 | Service bulletin | Sep 23, 2026 | Technical Information for Replacement Requirement for Rear Bumper Due to Deformation/Accident Damage |
| 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. 73-26 | Service bulletin | Aug 10, 2026 | Symptom-based workshop manual for Vibrating Steering Wheel and Red Warning Message “Electrical System Fault” - Observe Specified Procedure.… |
| 70-26 | Service bulletin | Aug 10, 2026 | Technical Information for Water Collection in the Rear Doors - Heavy Water Leak when Opening the Rear Doors. Note that this bulletin is only… |
| 56/26 | Service bulletin | Jul 20, 2026 | Spare Parts Requirement for Door Window Pane - Supply Shortage: Procedure Until Parts are Available (56/26) |
| SPTL 2603b | Service bulletin | Jul 7, 2026 | Porsche Approved Collision Center – Acquiring Special Tools and Equipment |
| SPTL2603a | Other | Jun 25, 2026 | Porsche Approved Collision Center – Acquiring Special Tools and Equipment |
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 29/18 6690 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 29/18 6690 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 29/18 6690 cover?
The manufacturer filed it against 5 model years: 2023 Porsche Cayenne, 2022 Porsche Cayenne, 2021 Porsche Cayenne, 2020 Porsche Cayenne, 2019 Porsche Cayenne. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.