# Service campaign No. WSS0

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service campaign
- NHTSA id: 11029122
- Published by NHTSA: 2026\-03\-02
- Manufacturer's number: No. WSS0
- Manufacturer's date: 2026\-02\-04
- Campaign id or software version: WSS0
- NHTSA component: SUSPENSION

## NHTSA's summary

Technical information for WSS0 \- Checking the Return Line \(PDCC\) and Replacing if necessary

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029122-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029122-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Suspension

## Vehicles listed

- 2025 to 2026 PORSCHE 911

## Other bulletins for the same vehicles and component

- [SPTL2609](/bulletins/11037868.md), 2026-10-02, Service bulletin: WHEELS; STEERING; SUSPENSION. Special Tools and Equipment Information for alignment machines \- Q3 2026 Software Spec Update Available
- [No. 64\-26\-1](/bulletins/11037856.md), 2026-10-02, Service bulletin: STEERING; WHEELS; SUSPENSION. Technical Information for Yellow Warning Message "Rear Axle Steering Has Failed" in Instrument Cluster: Replace Servo Motors for Rear Axle Steering
- [SPTL2608](/bulletins/11037083.md), 2026-09-04, Service bulletin: WHEELS; SUSPENSION; STEERING. Special Tools and Equipment Information for alignment machines \- Q2 2026 Software Spec Update Available
- [No. 63\-26](/bulletins/11037042.md), 2026-09-04, Service bulletin: SUSPENSION. Symptom\-based workshop manual for Creaking Noise from the Front End of the Vehicle.
- [No. 64\-26](/bulletins/11037041.md), 2026-09-04, Service bulletin: SUSPENSION; STEERING. Technical Information for Yellow Warning Message "Rear Axle Steering Has Failed" in Instrument Cluster: Replace Servo Motors for Rear Axle Steering
- [No. D781](/bulletins/11032393.md), 2026-05-07, Service bulletin: SUSPENSION. Parts information for parts withdrawal involving \(992513031K\) Shock absorber \(spring cyl.\). The vehicles affected are ones that use the part number mentioned.
- [WSS0](/bulletins/11029215.md), 2026-03-03, Service campaign: SUSPENSION. Porsche intranet posting with information on WSS0 \- Workshop Campaign \- Check the return line \(Porsche Dynamic Chassis Control\) and replace it if necessary
- [No. 16\-25](/bulletins/11029185.md), 2026-03-02, Service bulletin: SUSPENSION. Installation and conversion instructions for the Manthey Chassis GT3 \- MY25
- [No. D757](/bulletins/11029108.md), 2026-03-02, Service bulletin: SUSPENSION. Parts information for parts withdrawal involving the retaining spring. The vehicles affected are cars that use part number 95C615269E
- [No. 06\-25](/bulletins/11016730.md), 2025-04-07, Service bulletin: ELECTRICAL SYSTEM; SUSPENSION. Technical Information \- Warning Message “Chassis Failed” / Fault Memory Entry “C12EF00” in the Control Unit for Chassis Control \(PASM\) as Part of the Sales Review \(06/25\)

JSON: [/v1/bulletins/11029122](/v1/bulletins/11029122)

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