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Service bulletins for the 2019 Mazda Mazda3

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.

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

About B119F on the 2019 Mazda Mazda3: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: B119F are shown. Show all

Bulletins, newest first
SA-038-242024-07-05. Other. ELECTRICAL SYSTEM. Some customers may experience the master warning light and/or the "In-Vehicle Network Malfunction" warning message in the instrument cluster on with DTC B119F:01 (TCU - Tel antenna No. 1 malfunction) stored.
09-021-20-3714b2021-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL:ANTENNA. Some customers may experience the master warning light and/or the "In-Vehicle Network Malfunction" warning message in the instrument cluster on with DTC B119F:01, B119F:13 and/or B119F:2B stored when the vehicle position cannot be displayed correctly.
09-021-20-3714a2020-12-03. Service bulletin. EQUIPMENT:ELECTRICAL:ANTENNA; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may experience the master warning light and/or the "In-Vehicle Network Malfunction" warning message in the instrument cluster on with DTC B119F:01, B119F:13 and/or B119F:2B stored when the vehicle position cannot be displayed correctly. • B119F:01 (TCU - Tel antenna No. 1 malfunction) • B119F:13 (TCU - TEL antenna No.1 circuit malfunction) • B119F:2B (CMU - GPS antenna signal circuit malfunction) This concern may be caused by incoming noise disturbing the reception of GPS signals, resulting in the wrong vehicle location and the DTC stored. To eliminate this concern, the GPS antenna has been modified.
SA-029-20g2020-10-05. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: • B119F:01 TCU - Tel antenna No. 1 malfunction• B119F:13 (TCU - TEL antenna No.1 circuit malfunction)• B119F:2B (CMU - GPS antenna signal circuit malfunction)• B1252:87 TCU - Communication error with connectivity master unit (CMU)• U0156:00 VCM - Communication error with connectivity master unit (CMU)• U0156:00 BCM - Communication error with connectivity master unit (CMU)• U0198:00 BCM - Communication error with emergency call unit• U212D:00 BCM - Communication error with light control module (RH)• U3000:00 TCU - Telematics communication unit internal malfunction• Low Voltage Battery DTCs
SA-029-20e2020-07-03. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:• B119F:01 TCU - Tel antenna No. 1 malfunction • B119F:13 (TCU - TEL antenna No.1 circuit malfunction) • B119F:2B (CMU - GPS antenna signal circuit malfunction) • B1252:87 TCU - Communication error with connectivity master unit (CMU) • U0156:00 VCM - communication error with connectivity master unit (CMU) • U0156:00 BCM - Communication error with connectivity master unit (CMU) • U0198:00 BCM - Communication error with emergency call unit • U212D:00 BCM - Communication error with light control module (RH) • U3000:00 TCU - Telematics communication unit internal malfunction • Low Voltage Battery DTCs
SA-029-20d2020-07-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:• B119F:01 TCU - Tel antenna No. 1 malfunction • B119F:13 (TCU - TEL antenna No.1 circuit malfunction) • B119F:2B (CMU - GPS antenna signal circuit malfunction) • B1252:87 TCU - Communication error with connectivity master unit (CMU) • U0156:00 VCM - communication error with connectivity master unit (CMU) • U0156:00 BCM - Communication error with connectivity master unit (CMU) • U0198:00 BCM - Communication error with emergency call unit • U212D:00 BCM - Communication error with light control module (RH) • U3000:00 TCU - Telematics communication unit internal malfunction • Low Voltage Battery DTCs
SA-0290-20c2020-07-03. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: • B119F:01 TCU - Tel antenna No. 1 malfunction • B1252:87 TCU - Communication error with connectivity master unit (CMU) • U0156:00 VCM - communication error with connectivity master unit (CMU) • U0156:00 BCM - Communication error with connectivity master unit (CMU) • U0198:00 BCM - Communication error with emergency call unit • U212D:00 BCM - Communication error with light control module (RH) • U3000:00 TCU - Telematics communication unit internal malfunction • Low Voltage Battery DTCs
09-021-20-37142020-07-02. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Some customers may experience the master warning light and/or the "In-Vehicle Network Malfunction" warning message in the instrument cluster on with DTC B119F:01, B119F:13 and/or B119F:2B stored when the vehicle position cannot be displayed correctly. (TCU - Tel antenna No. 1 malfunction) (TCU - TEL antenna No.1 circuit malfunction) (CMU - GPS antenna signal circuit malfunction). This concern may be caused by incoming noise disturbing the reception of GPS signals, resulting in the wrong vehicle location and the DTC stored. To eliminate this concern, the GPS antenna has been modified.
SA-029-20a2020-05-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: • B119F:01 TCU - Tel antenna No. 1 malfunction • B1252:87 TCU - Communication error with connectivity master unit (CMU) • U0156:00 VCM - Communication error with connectivity master unit (CMU) • U0156:00 BCM - Communication error with connectivity master unit (CMU) • U0198:00 BCM - Communication error with emergency call unit • U212D:00 BCM - Communication error with light control module (RH) • U3000:00 TCU - Telematics communication unit internal malfunction • Low Battery DTCs
SA-029-202020-02-27. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: B119F:01 TCU - Tel antenna No. 1 malfunction B1252:87 TCU - Communication error with connectivity master unit (CMU) U0156:00 VCM - Communication error with connectivity master unit (CMU) U0156:00 BCM - Communication error with connectivity master unit (CMU) U0198:00 BCM - Communication error with emergency call unit U212D:00 BCM - Communication error with light control module (RH) U3000:00 TCU - Telematics communication unit internal malfunction

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