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Service bulletins for the 2021 Porsche 911

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.

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

By type

By component

By trouble code

Bulletins, newest first
No. 2311.42024-05-02. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the DME fault - fuel low pressure - implausible
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. 03-242024-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for allocation of approved engine oils
No. 12-132024-04-03. Service bulletin. ELECTRICAL SYSTEM. Technical information for the vehicle analysis log (VAL) - evaluating overspeed events
No. 24042024-04-03. Service bulletin. POWER TRAIN; EQUIPMENT. Special tools and equipment information for the Boxster, Cayman, 911, and Panamera
No. 183-212024-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Symptom-based workshop manual for the rattling noises from around the rear axle - checking engine mount.
No. 24032024-04-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. Special tools and equipment information for brake caliper pins for the 911, Boxster, and Cayman
No. 203-232024-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for the malfunction indicator light active in instrument cluster, DME fault memory entry P0D8500 - reprogramming DME control unit.
No. 05-232024-04-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. Installation and conversion instructions for the PCCB retrofitting - brake system
No. 2401.22024-04-03. Service bulletin. VISIBILITY:WINDSHIELD; EQUIPMENT; VISIBILITY. Instructions on advanced technical information for the windshield seal melting/deteriorating
No. 2109.22024-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for critical 12v li-ion battery recycling.
No. 24072024-04-02. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Instructions on advanced technical information for the surround view camera intermittent operation.
No. 10-052024-04-02. Service bulletin. ELECTRICAL SYSTEM. Technical information for the PCM2.1 and navigation unit. System connection software release.
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. 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. 88-202024-03-05. Service bulletin. POWER TRAIN. Technical information for a complaint - oil leaks on double clutch transmission
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. D82024-03-04. Service bulletin. UNKNOWN OR OTHER. Product knowledge for the chassis and VIN numbering systems
PIWIS2401f2024-03-04. Service bulletin. UNKNOWN OR OTHER. Information for PIWIS tester update 42.500.008
No. 2401.12024-02-08. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD:CRITICAL FASTENERS. Instructions on advanced technical information for the 911 windshield seal melting/deteriorating
No. 88-202024-02-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION: OIL COOLER. Technical information for a complaint - oil leaks on double clutch transmission
PIWIS2401e2024-02-08. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. Information on PIWIS tester update 42.500.005
No. 2401.22024-02-08. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD:CRITICAL FASTENERS. Instructions on advanced technical information for the 911 - windshield seal melting/deteriorating

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