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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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
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.
No. 19-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche A40 engine oils.
No. 18-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C40 engine oils.
No. 17-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C30 engine oils.
No. 16-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C20 engine oils.
No. 68-21-22023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. Symptom-based workshop manual for a rattling noise from the rear area of the exhaust system.
No. D6472023-09-09. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PUMP. Parts information on parts withdrawal for the oil pump
No. 14-232023-08-04. Service bulletin. ENGINE AND ENGINE COOLING. Manufacturers certificate for allocation of approved engine oils
No. 180-18-22023-08-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Technical information for a complaint involving the cylinder head cover near the injector holes leaking.
No. 2235.22023-06-06. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the display of coolant temperature showing too high in the Panamaera, Macan, and Cayenne.
No. 2221.22023-05-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced tehcnical information for the Cayenne E-Hybrid - thermal management fault (P26B100) causes a check engine light
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. 02-23-12023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. Manufacturers certificate for approved engine C20 engine oils.
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. 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. 180-18-22023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for the cylinder head cover near the injector holes leaking - subsequent work on cylinder head.
No. 05-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine A40 oils for all Porsche models that use A40 oil.
No. 04-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C40 oils for all Porsche models that use C40 oil.
No. 03-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 oils for all Porsche models that use C30 oil.
No. 2220.22023-02-07. Service bulletin. ENGINE AND ENGINE COOLING. Advanced technical information for the Cayenne 3.0 Liter engine variants.
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. 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. 2220.12023-01-10. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for a "wanted car": Cayenne 3.0 liter engine variants.
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

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