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Service bulletins for the 2020 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.

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

By type

By component

By trouble code

Bulletins, newest first
No. 174-232023-12-08. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT. Technical information for little or no cooling power from air-conditioning system
No. 2229.12023-12-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information on the Cayenne and 911 conbox current draw discharges 12v battery
PIWIS2302s2023-12-08. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.300.050 & .052
No. 2221.32023-12-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne E-Hybrid - thermal management fault (P26B100)
No. 35-232023-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufactures certificate for approved Porsche A40 engine oils
No. 33-232023-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufactures certificate for approved Porsche C30 engine oils
No. 32-232023-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufacturers certificate for approved C20 engine oils
No. 19-212023-12-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Installation and conversion instructions for the GT3 RS
No. 177-232023-12-07. Service bulletin. ELECTRICAL SYSTEM. Technical information for WPR0 - recoding thermal management control unit
PIWIS2302r2023-12-07. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.300.040 & .041
PIWIS2302q2023-12-07. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.300.035
PIWIS2302p2023-12-07. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.300.030 - .032
No. D6542023-12-07. Service bulletin. EQUIPMENT. Parts information for parts withdrawal involving the glass roof - 9J0877069EY and 9J0877069DY
No. 23302023-11-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the permanent diagnostic trouble codes
No. 180-212023-11-08. Service bulletin. ELECTRICAL SYSTEM. Technical information on WMM7 - replacing VTS control unit
No. 23282023-11-08. Service bulletin. EQUIPMENT; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; STRUCTURE. Installation and conversion instructions for the Macan and Cayenne - front window motor without function
No. 23232023-11-07. Service bulletin. VISIBILITY. Instructions on advanced technical information for the surround camera
PIWIS2302h2023-11-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Special tools and equipment information on PIWIS tester update 42.250.050
PIWIS2302g2023-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information on PIWIS tester update 42.250.045
PIWIS2302f2023-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information on PIWIS tester update 42.250.042
No. 28-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for a complaint - check engine warning light active in conjunction with fault memory entry.
PIWIS2302e2023-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information PIWIS tester update 42.250.040
PIWIS2302d2023-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information on PIWIS tester update 42.250.032
PIWIS2302C2023-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information on PIWIS tester update 42.250.030
PIWIS2302b2023-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Information on PIWIS tester update 42.200.025

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