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Service bulletin VIN4APIN20210121

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10186592
Published by NHTSA2021-02-04
Manufacturer's numberVIN4APIN20210121
Manufacturer's date2021-01-21
NHTSA componentFUEL SYSTEM, OTHER

NHTSA's summary

Customer states MIL-on with P2421 Customer states MIL-on with Misfire code Customer states clutch pedal makes noise No crank, no start Customer states no voice output during calls / micro phone inoperative Customer states fuel odor/leak in the rear part of the vehicle (without a punctured fuel tank, hoses or pipes) or difficulty fueling fuel tank or fuel coming back up filler neck

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P2421

Vehicles listed
VOLKSWAGEN ATLAS2020, 2021
VOLKSWAGEN ATLAS CROSS SPORT2021
VOLKSWAGEN GOLF2017, 2018, 2019, 2020, 2021
VOLKSWAGEN GOLF SPORTWAGEN2017, 2018, 2019
VOLKSWAGEN GTI2019 to 2021
VOLKSWAGEN JETTA2017, 2018, 2019, 2020, 2021
VOLKSWAGEN PASSAT2019, 2020
VOLKSWAGEN TIGUAN2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20240952024-02-14. Fuel System
24V1100002024-02-14. FUEL SYSTEM, GASOLINE
20221822022-04-13. Fuel System
22V2450002022-04-13. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
20205022020-10-21. Fuel System
20V6480002020-10-21. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SM 67-20252026-01-07. Other. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
V0123122072378_22025-06-03. Service bulletin. Update Programming of Engine/Motor Control Module J623 and replacement of FTIV if necessary.
SM 71-20242024-12-05. Other. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
VWM14072024-04-22. Service bulletin. Carefree Maintenance and VW Care Maintenance Plans Interim AdBlue Refills -? Diesel Engines Model Year 2015 and Newer
VWM14032024-04-22. Service bulletin. Volkswagen Carefree Maintenance Program ? Diesel Engines Model Year 2015 and Newer
Circular 90X12024-02-06. Service bulletin. Volkswagen is providing a hardware and/or a software update to address an issue in selected vehicles where the fuel gage may show a lower fuel level than what is actually remaining in the vehicle.
TT 01-20-02_32023-11-06. Service bulletin. T8 fuel injector harness inspection for stored DTCs P0201, P0202, P0203, P0204.
V0017132033846192023-07-10. Service bulletin. Gasoline fuel additive
SM 11-2023 VWMEX2023-07-10. Service bulletin. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
VWM14072023-05-22. Service bulletin. This communication contains important information and SAGA claim entry requirements for interim AdBlue refills under the Carefree Maintenance and VW Care Maintenance plans for Model Year 2015 and newer VW models with Diesel Engines.