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Service bulletins for the 2021 Porsche Cayenne

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.

829 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
No. 2229.62023-05-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for Cayenne and 911 conbox current draw discharges 12v battery
No. 15-202023-05-03. Service bulletin. VISIBILITY. Installation and conversion instructions for the front camera on the Cayenne
No. 104-202023-05-03. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. Symptom based workshop manual for a rattling noise form the fuel tank area - replacing fuel tank with new type of fuel tank
No. 23072023-05-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the display of "coolant temperature too high" in Group V6 and V8 Engines
No. 31-202023-04-07. Service bulletin. ELECTRICAL SYSTEM. Technical information for the diagnosis and handling of 12v lithium ion battery
No. 156-222023-04-07. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for the e-power not available - message, misfires, or jerking, poor throttle response during catalytic converter heating phase.
No. 2221.12023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. Advanced technical information for the Cayenne E-Hybrid - thermal management fault P26B100 Causes Check Engine Light
No. D4a2023-04-06. Service bulletin. EQUIPMENT. Product knowledge for the Porsche evolution from 1948-2023.
No. 143-182023-04-06. Service bulletin. BACK OVER PREVENTION; VISIBILITY. Symptom-based workshop manual for One or More Camera Views in the Central Display of the PCM are Black - Possible Water Intrusion
No. 122-202023-04-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. Technical information on a complaint - brake noise
WNK62023-03-06. Service bulletin. EQUIPMENT. Porsche intranet posting with information on workshop campaign WNK6 - exchanging spreader device
No. 193-222023-03-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Technical information - Check Engine Warning Light Active / Fault Memory Entry "P26B100/00CB24" in the Thermal Management Control Unit (TME):
No. 23042023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Advanced technical information: E3.I/G2 V8 – Oil/Air Separator Membrane Failure
No. 08-232023-03-04. Service bulletin. FUEL SYSTEM, GASOLINE. Manufacturers certificate for approved engine C40 oils for MY23.
PIWIS2301k2023-03-04. Service bulletin. EQUIPMENT. Information for PIWIS tester update 41.750.045 & .046
No. 23022023-03-04. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for the front turn signal inoperative - Cayenne as of MY19
No. 23032023-03-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Special tools information for the pneumatic cartridge gun.
No. 166-22-12023-03-04. Service bulletin. PARKING BRAKE. Technical information on WNK6 - replacing spreader device
No. 126-202023-03-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. Technical information for a complaint - error message "engine control system fault" when brake pedal is pressed slightly. Vehicle still moves normally.
No. 07-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 oils for all Porsche models that use C30 oil.
No. 06-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C20 oils for all Porsche models that use C20 oil.
No. 171-212023-02-07. Service bulletin. EQUIPMENT; SERVICE BRAKES, HYDRAULIC. Information on symptom based workshop manual - creaking/squeaking noises when operating the brake pedal.
No. 2235.12023-02-07. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for a display of "coolant temperature too high" on the Panamera, Macan, and Cayenne.
No. 205-212023-02-06. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. Technical information for a Message "Lane Change Assist Not Available – Service Necessary" in the instrument cluster: re-programming control units for lane change assist and, if applicable, radar sensor for front corner radar
No. 31-202023-02-06. Service bulletin. ELECTRICAL SYSTEM. Technical information for a diagnosis and handling of the 12 volt battery (on-board battery)

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.