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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

Only bulletins with component: Engine are shown. Show all

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. 03-242024-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for allocation of approved engine oils
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. 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. 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. 2204.22024-01-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for broken valve springs
WPR02023-12-08. Service bulletin. ENGINE AND ENGINE COOLING. Porsche intranet posting with information on recoding thermal management control unit
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. 22-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C40 engine oils.
No. 21-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C30 engine oils.
No. 20-232023-10-05. 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. 10-232023-09-08. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on manufacturers certificate for approved Porsche C30 engine oils.
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. 32-232023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING. Technical information for a message "engine control system fault" in conjunction
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. 156-222023-04-07. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for the e-power not available - message, misfires, or jerking, poor throttle response during catalytic converter heating phase.
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):

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