# Service bulletin SA\-027\-21a

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.

- Type: Service bulletin
- NHTSA id: 10198676
- Published by NHTSA: 2021\-07\-02
- Manufacturer's number: SA\-027\-21a
- Manufacturer's date: 2021\-06\-24
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

## NHTSA's summary

MAZDA CONNECT Symptom Troubleshooting \(7th Generation Vehicles\). Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10198676-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10198676-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories

## Vehicles listed

- 2020 to 2021 MAZDA CX\-30
- 2021 MAZDA CX\-5
- 2021 MAZDA CX\-9
- 2019 to 2021 MAZDA MAZDA3

## Other bulletins for the same vehicles and component

- [SA\-007\-24a](/bulletins/10254185.md), 2024-05-04, Service bulletin: SERVICE BRAKES, HYDRAULIC; FORWARD COLLISION AVOIDANCE; EQUIPMENT ADAPTIVE/MOBILITY. This information will give you the necessary knowledge to respond to customers concerns of Smart Brake Support \(SBS\) unintended braking. By educating the customer on the system operation, it should reduce their anxiety or distrust of the vehicle.
- [SA\-021\-24](/bulletins/10254095.md), 2024-05-03, 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\-24](/bulletins/10252509.md), 2024-04-03, 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
- [SA\-009\-24a](/bulletins/10251391.md), 2024-03-06, 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.
- [SA\-009\-24](/bulletins/10251390.md), 2024-03-06, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; 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.
- [SA\-006\-24](/bulletins/10251373.md), 2024-03-06, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
- [09\-001\-24](/bulletins/10249499.md), 2024-02-01, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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.
- [09\-001\-23a](/bulletins/10248394.md), 2024-01-06, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Some vehicles may exhibit an “In Vehicle Network Malfunction” message appearing in the instrument cluster with DTC U3000:04\-TCU \(Telematics communication unit internal malfunction\) stored after the connected service contract has been discontinued. 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\-025\-23a](/bulletins/10248389.md), 2024-01-06, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. 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.. CAUTION: DO NOT swap TCU with another vehicle as the TCU is VIN locked after activation. A TCU swap with another vehicle will disable Connected Services on both vehicles. If TCU activation is not performed, connected vehicle functions will not operate. This will have a negative impact on the customer because they will need to return to the dealer for repairs.
- [SA\-021\-23b](/bulletins/10248388.md), 2024-01-06, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. Qi Wireless Charger symptom troubleshooting

JSON: [/v1/bulletins/10198676](/v1/bulletins/10198676)

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