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Service bulletins for the 2012 Volkswagen Jetta

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.

1483 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine control module are shown. Show all

Bulletins, newest first
UPDATE24X72024-04-01. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. 2.0L MPI Software
Edition322023-09-18. Service bulletin. PARKING BRAKE; SEATS; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. VW Elsa Newsletter
Edition592023-09-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). VW Elsa Newsletter
Edition542023-09-18. Service bulletin. SERVICE BRAKES; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. VW Elsa Newsletter
Edition942023-09-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. VW Elsa Newsletter
Edition1092023-09-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. VW Elsa Newsletter
TB24X72023-09-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ENGINE AND ENGINE COOLING. 2.0L MPI Software (FED_EMS)
TB0114192023-08-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. MIL ON, Cylinder Contribution/Balance Faults Stored in ECM Fault Memory P0263, P0266, P0269 and/or P0272
TB0114142023-08-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. MIL ON, Cylinder Contribution/Balance Faults Stored in ECM Fault Memory P0263, P0266, P0269 and/or P0272
TB0114042023-08-28. Service bulletin. SERVICE BRAKES, ELECTRIC; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Update Programming to Eliminate DTC P050A Stored in ECM Fault Memory
TB0114012023-08-28. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Update Programming for Engine Control Module and Transmission Control Module, for Shudder and/or Slight Hesitation Concerns
TB0113352023-08-28. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); POWER TRAIN. Update Programming for Engine Control Module and Transmission Control Module, for Shudder and/or Slight Hesitation Concerns
TB0113192023-08-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Update Programming ECM to Eliminate DTC 03366 Stored in Brake Electronics Fault Memory
TB0113172023-08-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Update Programming, MIL ON, DTC P0106 Manifold Absolute Pressure Range /ECM Fault Memory Performance Stored
TB0113162023-08-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Update Programming of ECM for Concerns of a Bump Sensation after Coming to a Stop
P04412023-08-14. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. After Market Scan tool Diagnosis Notification
2814032023-07-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). MIL ON - Glow Plug Pressure Sensor Faults Stored in ECM Fault Memory
2114042023-07-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Engine will not start after standing in cold weather below 0°C (32°F), MIL may be illuminated with various induction and/or boost system faults stored in ECM.
2113012023-07-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Engine will not start after standing in cold weather below 0°C (32°F), MIL may be illuminated with various induction and/or boost system faults stored in ECM.
203314142023-07-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. PSS - Incorrect Glow Plug Faults P06C5, P06C6, P06C7 and/or P06C8
TT201301a2023-07-10. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, OTHER. To clear static ECM fault P1250 ?Fuel Level Too Low?, add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.
TT2013012023-07-10. Service bulletin. FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); UNKNOWN OR OTHER. To clear static ECM fault P1250 ?Fuel Level Too Low?, add fuel to vehicle and complete a road test of at least 10 miles. Simply adding fuel without completing a road test may not allow fault to clear.
TT2614022023-07-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Disconnect both O2 sensors (front and rear), start engine and let idle. Check MVB's 41/4 and 136/4 and verify have both changed from a 1 to a 0 (you may have to drive the car 4 miles to get them to reset to 0). Also a key cycle may be required for values to reset. This forces the ECM to re-learn the O2 sensor adaptation. Once MVB 41/4 and 136/4 read 0, re-connect the O2 sensors, road test and recheck for faults.
TT2413032023-07-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). When diagnosing a vehicle concern, and fault P130A ?Hide Cylinder? is found in the Engine Control Module (ECM), be aware that Engine Control Module (ECM) fault P130A ?Hide Cylinder? indicates a cylinder shut down and does not require diagnosis.
TT2411022023-07-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). For concerns of Fault Code P117A ?Bank 1, correction Lambda middle reached adjustment limit? stored in the ECM, check that the O2 sensors have not been installed or connected improperly.

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