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
| No. 109-21 | 2021-12-07. Service bulletin. WHEELS. Information on a symptom-based workshop manual: clicking noises from around the front axle. |
|---|---|
| No. 180-21 | 2021-12-07. Service bulletin. ELECTRICAL SYSTEM. Technical information on WMM7 - replacing VTS control unit. |
| No. 168-21 | 2021-12-07. Service bulletin. EQUIPMENT. Information on a symptom-based workshop manual: crackling noise from B-Pillar on Cabriolet vehicles. |
| No. 1758.3 | 2021-12-07. Service bulletin. EQUIPMENT. Special tools information for logo templates and exchangeable inserts. |
| No. 2133 | 2021-12-07. Service bulletin. EQUIPMENT. Special tools information for coolant cart foam update. |
| No. 65-21 | 2021-12-07. Service bulletin. STEERING. Information on the warning message - "PowerAssist Failure - Greater Force Needed" for fault memory B200046 - Function Restriction. |
| No. 2116 | 2021-11-05. Service bulletin. EQUIPMENT. Special tools information for a new contact surface cleaning set. |
| No. 150-21 | 2021-11-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Technical information on the engine control system fault - engine-Compartment blower in the DME control unit. |
| No. 121-21 | 2021-11-05. Service bulletin. SEATS. Information on the vehicle interior - backrest (seat) release stiff or actuating lever is torn. Checking and replacing backrest frame. |
| No. 97-21 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 engine oils for all Porsche models using C30 oil. |
| No. 98-21 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C20 engine oils for all Porsche models using C40 oil. |
| No. 95-21 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C40 engine oils for all Porsche models using C40 oil. |
| No. 94-21 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 engine oils for all Porsche models using C30 oil. |
| No. 93-21 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C20 engine oils for all Porsche models using C20 oil. |
| No. 13-21 | 2021-11-05. Service bulletin. EQUIPMENT. Installation and conversion instructions for the SportDesign Package. |
| No. 76-21 | 2021-11-05. Service bulletin. WHEELS; TIRES. Instructions on the manufacturer's certificate for approved winter tires, wheels, and snow chains. |
| No. 92-21-2 | 2021-11-05. Service bulletin. TIRES; WHEELS. Instructions on the manufacturer's certificate for approved wheels and tires. |
| No. 75-21 | 2021-11-05. Service bulletin. WHEELS; TIRES. Instructions on the manufacturer's certificate for approved summer tires, wheels, and spacers. |
| No. 2127-2 | 2021-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Instructions on advanced technical information for poor ground leads - starting issue. |
| No. 2128 | 2021-11-05. Service bulletin. EQUIPMENT. Special tools information for the holding bridge. |
| No. 2125-1 | 2021-11-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:MECHANICAL. Instructions on the advanced technical information for the ignition lock warning. |
| No. 31-20 | 2021-11-04. Service bulletin. ELECTRICAL SYSTEM. Information for handling 12v lithium-ion batteries. |
| No. 2108.1 | 2021-11-04. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. Instructions on advanced technical information for lane change assist warning. |
| No. 141-21-1 | 2021-11-04. Service bulletin. SERVICE BRAKES, HYDRAULIC. Recall repair information for recall campaign AMB9 - reworking brake booster. |
| No. 119-21-5 | 2021-10-06. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Porsche Workshop campaign repair instructions for Workshop Campaign WMG0 – Retrofitting Tire Pressure Monitoring (TPM) Control Unit. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.