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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. 24132024-05-02. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the Cayenne - squealing noises during light deceleration/coasting
No. 24122024-05-02. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the Cayenne - fuel tank isolation valve for tank ventilation system - stuck open
No. 177-232024-05-02. Service bulletin. ELECTRICAL SYSTEM. Technical information for WPR0 - recoding thermal management control unit
No. 20-242024-04-03. Service bulletin. POWER TRAIN. Technical information for an assessment of cracks on elastomer bearings on the front and rear axles.
No. 03-232024-04-03. Service bulletin. ELECTRICAL SYSTEM. Technical information for various error messages regarding driver assistance systems in the instrument cluster.
No. 2328.12024-04-03. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM; VISIBILITY. Instructions on advanced technical information for the Macan and Cayenne - front window motor without function
No. 2307.12024-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the display of "coolant temperature too high"
No. 2109.22024-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for critical 12v li-ion battery recycling.
No. 2116.32024-04-02. Service bulletin. SEAT BELTS. Instructions on advanced technical information for the red warning on the instrument cluster. Occupant seat belt not fastened.
No. 24082024-03-05. Service bulletin. ELECTRICAL SYSTEM:IGNITION; ELECTRICAL SYSTEM. Instructions on advanced technical information for the ignition lock error - B143C29
No. 24062024-03-05. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the mobile phone inductive charger information
No. 2229.112024-03-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Instructions on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery
No. 211-23-22024-03-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Symptom based workshop manual for the yellow warning message "PSM failure" in the instrument cluster - Checking Hydraulic Unit and Re-Program PSM Control Unit
PIWIS2401j2024-03-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Information for PIWIS tester update 42.500.020
No. 31-202024-03-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical information for a diagnosis and handling of 12 volt lithium ion battery
No. 166-21-12024-02-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PIPES, HOSES, AND FITTINGS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ENGINE AND ENGINE COOLING. Technical information for Oil Leakage on Cylinder Head Cover: Insert Micro-Self-Locking Screw
No. 24022024-02-08. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE:BODY:ROOF AND PILLARS. Instructions on advanced technical information for the Cayenne - roof sonsole rattles
No. 267-222024-02-07. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for the check engine warning light - active in conjunction with fault memory entry P310B00
No. 2009.32024-02-07. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the downstream oxygen sensor error
No. 2121.12024-02-07. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for ACC dynamic calibration fault
No. 167-23-22024-01-03. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for the coolant warning light lights up - supposed coolant loss on coolant pump
No. 23322024-01-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the Cayenne auxiliary hydraulic pump for transmission oil fault
No. 2323.12024-01-03. Service bulletin. VISIBILITY. Instructions on advanced technical information for the surround camera intermittent operation
WPR02023-12-08. Service bulletin. ENGINE AND ENGINE COOLING. Porsche intranet posting with information on recoding thermal management control unit
No. 2016.22023-12-08. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for troubleshooting AC charging

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