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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. 2231.12023-02-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information involving the mobile charger connect (PMCC) for software bugs and loss of power setting
No. 155-212023-01-10. Service bulletin. ELECTRICAL SYSTEM. Information on technical information for WML0 - retrofitting loudspeaker booster
No. 22352023-01-10. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information - coolant temperature is too high on the Panamera, Macan, and Cayenne.
No. 250-222023-01-10. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for a check engine warning light is active in conjunction with fault memory entry “P25B400” in the DME control unit
No. 173-21-22023-01-10. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for a Warning Message "Coolant Temperature Too High": Checking Coolant Pump and Change-Over Valve
No. 2229.52023-01-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Instructions on advanced technical information for the Cayenne and 911. An update to the conbox current draw discharges 12v battery.
No. 159-21-12023-01-10. Service bulletin. ELECTRICAL SYSTEM. Information on technical information for a complaint involving the Cayenne, Cayman, Boxster, Macan, and 911. The SD map update/OTA map update does not function
No. 22342023-01-10. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for improper odometer and speedometer function
WNH12022-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Porsche intranet posting with information on reprogramming the DME control unit
WMP22022-12-07. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on WMP2 workshop campaign - rework charging electronics
No. 1758.42022-12-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Special tools information for the logo templates and exchangeable inserts.
No. 155-21-42022-12-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Technical information for WML0 - retrofitting loudspeaker booster
PIWIS2202b2022-12-07. Service bulletin. EQUIPMENT. Information for PIWIS tester update 41.500.020 & .022
No. 224-222022-12-07. Service bulletin. VISIBILITY; EQUIPMENT. Symptom-based workshop manual for squeaking noise symptom when retracting and/or extending rear-view mirror
No. 112-222022-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for WNH1 - reprogramming of the DME control unit
No. 22312022-12-07. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Porsche Mobile Charger Connect (PMCC)
No. 22242022-12-07. Service bulletin. EQUIPMENT. Special tools information for welding tools for the 911, 718, Macan, Panamera, Cayenne, Taycan.
No. D618.12022-12-07. Service bulletin. UNKNOWN OR OTHER; COMMUNICATION. Parts information for parts withdrawal involving the gateway
No. 155-21-32022-12-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. Technical information for WML0 - retrofitting loaudspeaker booster
No. 2229.42022-12-07. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Instructions on advanced technical information for the conbox current draw discharges 12v battery - for the Cayenne and 911.
No. 197-212022-12-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. Information on reworking charging electronics - WMP2.
No. 2229.32022-12-06. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the conbox current draw discharges 12v battery.
WNM62022-11-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Porsche intranet posting with information for workshop campaign WNM6 - sticking over the label on the infrastructure charging cable
No. 2229.22022-11-04. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne and 911 - current draw discharges 12v battery
No. 173-222022-11-04. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for an oil leak around the oil-filter housing

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