# Service bulletin No. 87\-26

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 bulletin
- NHTSA id: 11037850
- Published by NHTSA: 2026\-10\-02
- Manufacturer's number: No. 87\-26
- Manufacturer's date: 2026\-09\-29
- NHTSA component: POWER TRAIN; ENGINE

## NHTSA's summary

Technical Information for Rattling Noises from Around the Rear Silencer

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037850-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037850-9999.pdf)

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

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2024 PORSCHE 718 CAYMAN GT4 RS
- 2024 PORSCHE 718 SPYDER RS

## Recalls for the same vehicles and component

- [24V343000](/recalls/nhtsa/24V343000.md), 2024-05-15: POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)

## Other bulletins for the same vehicles and component

- [No. 32\-26](/bulletins/11037826.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils
- [No. 31\-26](/bulletins/11037825.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- [No. 30\-26](/bulletins/11037822.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
- [No. 29\-26](/bulletins/11037818.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
- [No. 36\-26](/bulletins/11037801.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- [13/26](/bulletins/11035916.md), 2026-08-06, Service bulletin: ENGINE. Allocation of Approved Engine Oils MY 2027 \(13/26\)
- [GR13D790](/bulletins/11034838.md), 2026-07-08, Other: ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal \- Various Parts
- [09/26 3730](/bulletins/11034782.md), 2026-07-07, Service bulletin: POWER TRAIN. Permanent Fault Memory Entries “P1775”/“P071400”/“P184900” in Transmission Electronics Control Unit \(PDK\) \(09/26\)
- [20/26](/bulletins/11034777.md), 2026-07-07, Other: ENGINE. Overview of Approved Porsche C20 Engine Oils \(20/26\)
- [19/26 1701](/bulletins/11034776.md), 2026-07-07, Other: ENGINE. Overview of Approved Porsche C30 Engine Oils \(19/26\)

JSON: [/v1/bulletins/11037850](/v1/bulletins/11037850)

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