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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. D5452021-03-02. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for assorted control units.
No. 80-202021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Porsche recall information for ALA4 - Replacing the Fuel Supply Line in the Engine Compartment (Delivery Stop / Recall Campaign).
No. D2512021-03-02. Service bulletin. EQUIPMENT. New parts promotion for all weather mats and cargo liner.
No. 21062021-03-02. Service bulletin. ELECTRICAL SYSTEM. Special tools information for High Voltage Protective Gear Requirements.
No. 03-212021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on how to remedy a check engine error message that "Oxygen sensor Downstream of Catalytic Converter - Signal Too Slow from Lean to Rich" in the new Cayenne S.
WLL22021-02-02. Service bulletin. ENGINE AND ENGINE COOLING. Porsche intranet posting with preliminary information for Dealers about Workshop Campaign WLL2 - Subsequent work on mounting for catalytic converter.
No. 70-202021-02-02. Service bulletin. WHEELS. List of approved wheels and tires for the new Cayenne.
No. 1820.12021-02-02. Service bulletin. STRUCTURE. Special tools information on a measuring and alignment system.
No. 100-202021-02-02. Service bulletin. LATCHES/LOCKS/LINKAGES. Porsche service campaign information for Workshop campaign WKL3 - Replacing Ball Pins on Rear Lid
No. 69-202021-02-02. Service bulletin. WHEELS. List of approved wheel and tire sets for the Cayenne Coupe models.
No. 111-202021-02-01. Service bulletin. POWER TRAIN. Instructions on how to reduce or remove speaking noises at low speeds from the rear axle area.
No. 1758.22021-02-01. Service bulletin. EQUIPMENT. Special tools information on Logo Templates and exchangeable inserts.
No. 1844.12021-02-01. Service bulletin. EQUIPMENT. Special tools information on the new initial tool set for the E3 Cayenne.
No. 21022021-02-01. Service bulletin. POWER TRAIN. Special tools information about a mounting bracket for the Cayenne transmission.
No. 1706.12021-02-01. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information on packaging and test log requirements for HV Lithium Ion Battery Returns.
No. 1758.12021-02-01. Service bulletin. EQUIPMENT. Special tools information on Logo templates and exchangeable inserts.
No. 181-202021-02-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Porsche service campaign information for Workshop campaign WLL2 - Reworking Catalytic Converter Mounting.
No. 21012021-02-01. Service bulletin. EQUIPMENT. Special tools information on renting logo templates.
No 226-20-32021-02-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Instructions for clearing a Tire pressure monitoring system error message in the instrument cluster.
No. 21002021-02-01. Service bulletin. EQUIPMENT. Porsche Specials tools update for an offline SD Card update for the Map services.
No. 29-182021-02-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; TRAILER HITCHES. Installation and conversion instructions for retrofitting a Trailer hitch on the Cayenne.
No. D5422021-02-01. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal information for a control panel.
No. D5402021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Parts withdrawal information for an electric motor.
No. 20132021-01-05. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE; EQUIPMENT ADAPTIVE/MOBILITY. Advanced Technical information for replacing the active charcoal container in connection with Tank vent valve replacement.
No. 200-202021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Instructions on how to delete and re-initialize the user (driver) in the event that a message appears that the PCM cannot be closed.

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