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Service bulletins for the 2023 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
SA-070-242024-10-05. Service bulletin. ELECTRICAL SYSTEM. When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.
SA-067-242024-10-05. Service bulletin. ELECTRICAL SYSTEM. Qi Wireless Charger symptom troubleshooting.
SA-065-242024-10-05. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about the Active Driving Display not displaying turn by turn (TBT) travel direction or navigation information.
SA-064-242024-10-05. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Some customers may experience a Connected Vehicle failure. The MyMazda App may display an Error Code. This document provides Error Code description and recovery information to assist with repairs.
SA-017-24b2024-10-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE; EXTERIOR LIGHTING. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control
SA-006-24c2024-10-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
09-001-24g2024-10-05. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:00-TCU (Emergency call unit/telematics communication unit internal malfunction) or U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
SA-062-242024-09-04. Service bulletin. ELECTRICAL SYSTEM. For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of all PCM terminals used in SKYACTIV® vehicles and compare suspect terminal drag with a known good terminal. To measure the voltage/resistance avoiding any terminal damage.
SA-057-242024-09-04. Service bulletin. ENGINE; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices.
SA-006-24b2024-09-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
SA-054-242024-09-04. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. When the power windows are operated many times without being fully closed, small errors of the window position sensor may accumulate and cause improper operation of the jam-safe function. To reduce the risk of this occurrence, the AUTO function is disabled if the power window is operated 10 consecutive times without being fully closed (turning the ignition OFF and then ON does not reset the counting). If the power window is fully closed before the 10th time, the counting restarts and the AUTO function is not deactivated.
SA-050-242024-09-04. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Some customers may complain that their liftgate does not open. This can mean a range of things, from the liftgate not unlatching to the power liftgate (PLG) not opening automatically. If you confirm that the customer's concern is that the liftgate does not unlatch correctly, follow the repair information below.
09-001-24e2024-08-02. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
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.
09-030-242024-07-05. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience the following symptoms: No sound from some audio sources (AM, FM, SiriusXM®) after turning the ignition on. Radio station selection (AM, FM, SiriusXM®) changes unintentionally after turning the ignition on. Audio source cannot be changed. Diagnosing according to MGSS online does not solve the problem. These concerns may be caused by the remote tuner not operating properly under certain situations. To eliminate these concerns, the remote tuner control software has been modified.
09-001-24d2024-07-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
SA-032-242024-06-04. Other. ELECTRICAL SYSTEM. The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code. NOTE: A Warranty Code is required for warranty claim submission
SA-031-242024-06-04. Other. ELECTRICAL SYSTEM. This service information provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the batteries periodically according to the repair procedure.
09-027-242024-06-03. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Some customers may experience that after the doors are locked and the Fuel Door Lock Delay with MAZDA CONNECT has passed (default setting is 90 seconds), the fuel-filler lid does not lock, but can be opened when pressed. NOTE: The fuel-filler lid does not lock immediately after the doors are locked, but after the time set in the Fuel Door Lock Delay (0, 30, 60, 90, and 120 seconds). Although the root cause has not been identified, the vehicle should be repaired by adjusting the fuel-filler lid opener cable position when there is a customer complaint.
07-003-242024-05-04. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Some customers may complain that the ambient temperature on the instrument cluster is displayed more than 50 °F (10 °C) lower than the actual temperature, resulting in insufficient performance of the air conditioning. This is caused by inappropriate soldering in the ambient temperature sensor. To eliminate this concern, the soldering process has been enhanced at the supplier.
09-023-242024-05-04. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the remote transmitter. Symptom 1: The touch sensor of the front door outer handle does not lock the doors after rain and/or car washing, even though unlocking is possible. Symptom 2: The touch sensor of the front door outer handle does not unlock the doors.
SA-021-242024-05-03. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Some customers may complain about intermittent audio no sound from the MAZDA CONNECT infotainment system and/or static noise from the speakers. The concern may be reproduced by tapping on the dash pad near the MAZDA CONNECT center display and the following DTC's may be stored. U0186:08 Communication error with audio amplifier U2145:08 Communication error with remote tuner (RT) U2145:02 Communication error with remote tuner (RT)
SA-017-242024-04-03. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF, Climate control
09-001-24b2024-04-03. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified.
SA-009-24a2024-03-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Frequently Asked Questions (FAQ): General Questions, Reception Level Inspection, Setup and Getting Started, Dealer Processes, Registration / Enrollment, TCU Activation, WI-FI General Information, Conditions for Remote Engine Start Will Not Function, WI-FI How-To Conditions for Remote Engine Start Function Will turn engine OFF, WI-FI Trial Period, Deactivation Mode, Interacting With The App, Educational Videos, Service Issues, Resources, Troubleshooting Page.

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