WenmarOpen by Wenmar Pro

Service bulletin 1/26 2601

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11034576
Published by NHTSA2026-07-07
Manufacturer's number1/26 2601
Manufacturer's date2026-06-08
NHTSA componentENGINE
Manufacturer's systemExhaust: Sports exhaust

NHTSA's summary

Sports exhaust installation instructions.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
PORSCHE CAYENNE2025, 2026
PORSCHE CAYENNE COUPE2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE E-HYBRID2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE E-HYBRID COUPE2025, 2026 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
No. 31-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
No. 30-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
No. 29-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
No. 36-262026-10-02. Service bulletin. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
No. 62-262026-10-02. Service bulletin. Technical Information for Coolant Warning Light Lights Up: Suspected Coolant Loss on the Coolant Pump
GR13D8022026-09-04. Service bulletin. Parts Information for Parts Withdrawal - Coolant Regulator Housing
GR13D8032026-09-04. Service bulletin. Parts Withdrawal - Control Valve
No. 2606-12026-09-04. Service bulletin. Information on Advanced Technical Information for E3II V8 Cayenne – Various Assistance System Warning Messages in the Instrument Cluster due to Implausible Drivetrain Coordinator Status
No. 26062026-09-04. Service bulletin. Information on Advanced Technical Information for E3II V8 Cayenne – Various Assistance System Warning Messages in the Instrument Cluster due to Implausible Drivetrain Coordinator Status
No. 2304-22026-09-04. Service bulletin. Information on Advanced Technical Information for E3.I/G2 V8 – Oil/Air Separator Membrane Failure