[Hawke]

Perhaps, this is applicable, although it's not written exactly as you wrote the error message that you got

Info about this message can be found in the owners manual here: CX-30 Owners manual

Otherwise it's pretty much as Paulex_82 stated, further information can be found in this service alert.

 

[Hawke]

Mazda recently updated the Service Alert, regarding this message where it says, among other things, that it is accumulated awake time without engine running, also if I'm understanding this correctly, this message is only notifying of a possible low battery, it might not actually be that low charge on it.

Anyway here's it the updated info:

 

[Hawke]

I've have not had a problem in this regard at any point since buying the vehicle.

32 000 km here with no special treatment of the keys....have not seen the warning, nor had any starting issues and no updates.

You have 2020 models? As the service alert states, only 2021 model can get this message.

 

[Hawke]

For owners in Europe & UK with affected models, a PCM update is now available from your local Mazda dealer, which incorporates the following changes:

Control software of the BCM has been modified to change the condition for the power saving mode to be activated and deactivated.

- Activation of the power saving mode
The accumulated time 30 minutes has been extended to 90 minutes.

- Deactivation of the power saving mode
Driving or engine running for 5 minutes has been shortened to 3 seconds.

That should at least greatly reduce the occurrence of this message appearing.

 

[Hawke]

Do you happen to have a bulletin reference number?

Yes, for Europe it's TSB R020/22

 

[Hawke]

That's great to hear, that it got resolved and thanks for reporting back on it.

 

[Hawke]

Here is the updated Service Alert for the NA market that came out last month, it mentions that the the customer may request an improvement, and for that an update is available now, details in the SA.