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NHTSA ID Number: 11034448

Manufacturer Communication Number: SA-042-26

TSB/Document Date: 2026-07-03


Summary

This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-017/25 12/16/25, 09/08/25, 07/14/25, 05/15/25 and 03/21/25 DESCRIPTION MazdaeBay logo Connect Frequently Asked Questions (FAQ) Index General Questions MAZDAeBay logo CONNECT Indication Setup and Getting Started Dealer Processes Registration / Enrollment / Take-Over Customer Subscription Status WI-FI General Informatio Opening the TCU Communication Line WI-FI How-To Conditions for RemoteeBay logo Engine Start Will Not Function WI-FI Trial Period Conditions for RemoteeBay logo Engine Start Function Will turn engine OFF Interacting With The App TCU Communication Line Status Service Issues Educational Videos Troubleshooting Resources MyMazda App Error Codes Customer Opt-Out


1. Select Settings from the MazdaeBay logo Connect home screen.
How do I manage my Wi-Fi hotspot
2. Select Connectivity.
password?
3. Select Wi-Fi Settings.
4. Select Wi-Fi Password to manage the password.
What if I forget my Wi-Fi password? You can manage the Wi-Fi password by following these stepseBay logo:
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1. Select Settings from the MazdaeBay logo Connect home screen.
2. Select Connectivity.
3. Select Wi-Fi Settings.
4. Select Wi-Fi Password to manage the password.
WI-FI Trial Period
FAQ

Answer

How do you begin
the Wi-Fi trial?

Any applicable free Wi-Fi trials and monthly subscriptions are handled directly with Verizon/
AT&T.
If you reach the limits of the free trial, simply continue services by signing up for Verizon’s/
AT&T's wireless plan. Verizon/AT&T offers an unlimited plan for $20 per month.
The customer can contact:
• Verizon directly at (800) 331-4331 for applicable Mazda3 and CX-30 (built before July
1, 2021)
• AT&T directly at (800) 331-0500 for applicable Mazda3 and CX-30 (built July 1, 2021
and later)
• AT&T directly at (800) 331-0500 for applicable CX-5, CX-50, CX-70, CX-9, CX-90, MX5 and MX-30
Please advise the customer to have their IMEI number available, as Verizon/AT&T may
request this infomation during the call.
How To Obtain IMEI Number
Go to the MyMazda App

What happens if I
reach my data limit
during the Wi-Fi trial?

a. Log into MyMazda app.

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b. Select “hamburger menu” on
top right of screen.

c. Select “Support”.

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d. Select “Quick Links”.

e. Select “In-Car Wi-Fi”.

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f. Instructions & IMEI
Displayed.

The free trial is good for:
• 2GB or 6 months, whichever comes first, for Verizon applicable Mazda3 and CX30 (built before July 1, 2021)
• 2GB or 3 months, whichever comes first, for AT&T applicable Mazda3 and CX-30 (built
July 1, 2021 and later)
• 2GB or 3 months, whichever comes first, for AT&T applicable CX-5, CX-50, CX-70,
CX-9, CX-90, MX-5 and MX-30

What are the trial
terms for Wi-Fi hotspot?

You can log into the following sites using your login information.
How can I check
how much data I've
used during my trial?

Interacting With The App
FAQ
Can I use multiple
devices for the same
account?

• Verizon’s account management website for applicable Mazda3 and CX-30 (built before
July 1, 2021)
• AT&T's Sign In website for applicable Mazda3 and CX-30 (built July 1, 2021 and later)
• AT&T's Sign In website for applicable CX-5, CX-50, CX-70, CX-9, CX-90, MX-5
and MX-30

Answer
No, not simultaneously. For security purposes, the app will automatically log
other devices out when a new one logs in.

Do I need to be within a
certain distance of
As long as both the MyMazda app and the vehicle are within range of cellular service,
my MazdaeBay logo for
Connected Services should work.
Connected Services to work?

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Yes, the primary driver can invite up to three (3)
other Connected Services drivers through MyMazda.
The primary driver can also cancel the invites at any
Can I add
time through MyMazda.
multiple Connected Services To add drivers:
drivers to the
1. Go to "My Vehicles".
same Connected
2. Tap “Manage Drivers”.
Services account?
3. If a spot is available, tap “+ Invite Driver”.
If you change your mind, you can tap
“Cancel Invitation” to retract your invitation to a
secondary driver.
Can I use the app on a tablet
Yes, but some functions may not work properly, as tablets are not fully supported.
instead of a smartphone?
Can I use the
RemoteeBay logo Control feature
while sitting in the
connected vehicle with the
key?

No, none of the RemoteeBay logo Control functions will operate if the key is located inside the car,
or if all of the doors are not closed.

Can I schedule a
service appointment
using Connected Services
on the MazdaeBay logo
Connect display in my
vehicle?

No, you can only schedule a service appointment through the MyMazda app (or web),
not through the in-vehicle MazdaeBay logo Connect display.

Vehicle Status and Vehicle Health Report data
is updated after ignition off. As long as the engine
is running, information is not updated, even if it is
refreshed.
NOTE:
When are Vehicle Status and
Vehicle Health Report data
updated?

• It may take several minutes for Vehicle Status
and Vehicle Health Report to be updated after
ignition off.
• Vehicle Maintenance due data is pulled from
the vehicles MAZDAeBay logo CONNECT system. The
customer can change the settings at: MAZDAeBay logo
CONNECT -> Information -> Vehicle Status
Monitor -> Vehicle Maintenance Settings.

You may login to Connected Services using any other smart device by downloading the
If I lose my phoneeBay logo, how can I MyMazda app and using your MyMazda login credentials. Even if you don’t have another
restrict access to Connected smart device, access to Connected Services will be restricted to other users by the
Services?
Identification Management system of the MyMazda app (cannot login without password
or biometric login).

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If RemoteeBay logo Engine Start is used, the engine will stop
running automatically after 15 minutes for safety,
security and emissions.
When I use RemoteeBay logo Engine
Start to warm up my vehicle, NOTE: The RemoteeBay logo Engine Start can only be used 2
how long will the engine
consecutive times while the vehicle is not driven.
continue running?
The vehicle must be driven 1-mile or 24-hours must
pass from the last successful RemoteeBay logo Engine Start
for the use count to reset. For more information,
refer to the Connected Services Owner's Manual.

Service Issues
FAQ

MyMazda App displays "Subscription Required"

Answer
Connected Vehicle Services free trial period has ended,
pop-up notification, "Subscription Required", requests the
customer to sign up for a paid subscription plan.
This pop-up notification will not disappear until customer
has paid for subscription plan through the MazdaeBay logo
Connected Services Owner Portal.
Once customer has purchased a subscription plan, it is
recommended to close the app & re-login back into
MyMazda app to refresh the connected services status.
Once the system recognizes customer’s subscription
status (this could take up to 12 hours), the “subscription
required” pop-up will disappear.
Action:
• Customer - Go to MazdaeBay logo Connected Services
Owner Portal.
• Dealer - No Action needed; however, if the
customer is having difficulty with the MazdaeBay logo
Connected Services Owner Portal, refer the
customer to CEC at (800) 222-5500.

Instrument Cluster Error Message
"In Vehicle Network Malfunction"

Go to 09-001/24.

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or
"Telematics Malfunction"

and DTC U3000:04 TCU stored.
MX-30 and PHEV vehicles do not have a RemoteeBay logo Engine
Start function; instead, they are equipped with the
following remoteeBay logo functions:
PHEV - RemoteeBay logo engine start function does not start the
engine

• Start / Stop Charge
• Climate On / Off
See SA-066/24.

I cannot set the climate control when using the MyMazda
App.

RemoteeBay logo Climate Control is only available on EV and
PHEV models. See SA-066/24.

Is my Connected Services reception affected by weather
conditions or geographic features such as tunnels or
steep valleys?

Yes, inclement weather, remoteeBay logo locations, enclosed
areas, or underground parking garages can affect your
service. Use the radio wave reception level indications
of the communication unit to determine if your Connected
Services reception is being affected. For details on the
system’s limitations, refer to the Terms and Conditions.

Can I use Connected Services as normal during an app
update?

It may not be possible to use certain Connected Services
functions during a MyMazda online update.
The MyMazda App is not real time.

• Low Tire pressure will not clear after correcting tire
pressue.
• Vehicle status is inaccurate.

2021-2025 CX-5 and CX-9

• Customer must go to MyMazda app’s Inbox and
read/open all the messages related to the low tire
pressure alert, then the “Low tire pressure” alert
will clear from MyMazda app’s Health Report.
• Message will clear after next drive cycle.
2021-2025 CX-5 and CX-9
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Tire pressures are not displayed on either the infotainment
center display or the MyMazda App.

This is normal operation and no action is needed.

Infotainment Center Display
(A) - Tire Pressure data is not displayed
(B) - The message is incorrect.

MyMazda App

Troubleshooting
Go to SA-023/25 - CONNECTED VEHICLE SYMPTOM TROUBLESHOOTING.
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.
MyMazda App Error Codes
Go to SA-009/25 - MYMAZDA APP CONNECTED VEHICLE ERROR CODE DESCRIPTION AND RECOVERY
INFORMATION.
MAZDAeBay logo CONNECT Indication

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Indication

Explanation
Radio waves are not being received.
Move to a location with good reception.
• Data line has been closed due to Opt-Out (Deactivation)
request.
To open data line, accept T&C in CV enrollment

Weak reception

Good receptioin

Strong reception
Currently conducting an operation check of the communication unit. If
this condition continues, consult an Authorized MazdaeBay logo Dealer.
Currently conducting an operation check of the onboard
communication unit.
NOTE: Communication is not possible during this display.
The communication function is temporarily disabled due to
infotainment system setting.





TCU Communication Line Status is closed
No CV Contract
Connected Service contract has ended (Subscription expired)
TCU has not been initialized - go to SA-004/21
Customer deactivated Connected Services (Opt-Out)
eMDCS Warranty Vehicle Inquiry will show Campaign
CSP04 Status Open

Connected Services Disabled message appears Connected Services disabled (box unchecked).
at engine start up.

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Enable Connected Services (box checked) to prevent message
appearing at engine start up.

NOTE: If customer Opted-Out ( CSP04), advise customer to keep
Connected Services box checked. The vehicle will not transmit data.
Connected Vehicle Maintenance Mode.
Connected Vehicle Maintenance Mode enabled. Go to
MGSS SERVICE CAUTIONS FOR VEHICLES WITH TELEMATICS
COMMUNICATION SYSTEM to disable Maintenance Mode.
NOTE: Connected Vehicle Maintenance Mode is unnecessary if the
customers vehicle is in Deactivation Mode .

Dealer Processes
When vehicle is being serviced, switch to Restricted Transmitting Mode.

Connected Vehicle
Maintenance Mode
• Restricts MyMazda App remoteeBay logo functions.
• Prevents error messages being sent to the customer during vehicle service.
NOTE:
• Make sure to cancel Restricted Transmitting Mode after completing vehicle
service.
• Connected Vehicle Maintenance Mode is unnecessary if the customers vehicle
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is in Deactivation Mode.
See SERVICE CAUTIONS FOR VEHICLES WITH TELEMATICS COMMUNICATION
SYSTEM [(US)]
Mazda3
CX-9
CX-90

Is there an opportunity
at PDI to test the
system?

CX-30

MX-30

MX-5

CX-5

CX-50

CX-70

No special action is required to activate at PDI other than the room fuse installation, which is
already part of the current PDI. We recommend checking for signal after installing room fuse.
See the image below for how the connectivity signal bar looks (it's the vertical stack bar on the
right bottom corner). This connectivity signal bar is not displayed on the "Home" screen, so the
PDI Inspector would have to go into the "Entertainment" or "Navigation" menu to check it. To
confirm it is working properly, the bar should be white like the image below.

The handbook states
that a “moderate
collision” will dial 911.
Please define
“moderate.”

If an airbag is deployed.

Will the customer
have to sign a
disclaimer for a loaner
vehicle that has
Connected
Services activated?

If the customer is downloading the MyMazda app to use the Connected Services functions,
they will sign the disclaimer as part of the MyMazda process. If the customer is not
downloading the app but the dealer has set it up for their own purposes (e.g., vehicle location),
then it is the dealer's responsibility to disclose to the customer.

Customer Subscription Status
MazdaeBay logo
Connected
Vehicle
Viewer
(MCVV)
No Subscription

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Free Trial
Subscription

Paid Subscription

MazdaeBay logo Connected Vehicle Viewer (MCVV) link will be in red text

No Subscription

eMDCS

• Communication
Line Closed
• No CV
Contract

Subscription

MazdaeBay logo Connected Vehicle Viewer (MCVV) link will be in green text

• Communication
Line Open
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07/01/2026 11:10 AM tlawrenc

• CV Contract

3-year, unlimited mileage, complementary free trial








2019-2024 Mazda3
2020-2024 CX-30
2021-2024 CX-5
2023-2024 CX-50
2025 CX-70
2021-2023 CX-9
2024 CX-90
2022-2023 MX-30
2024 MX-5

1-year, unlimited mileage, complementary free trial
Free Trial
Subscription Period



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TSB/Document ID: SA-042-26

Replacement Service Bulletin Number:

MFR Communication Date: 2026-07-01

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: UNKNOWN OR OTHER

MFR Component System:

MFR Component Subsystem: MazdaeBay logo Connect


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