disabling DCM / telematics in 2025 Taco

[Singha]

Has this caused anyones remote start via the key fob to stop working? Toyota claims the DCM is required for remote start to work at all even from the key fob as without the 10 year free trial or paid subscription to Connected services, you will lose access to remote start.

I Installed the AHH connector and NOW my remote start VIA key FOB is also not working. I have confirmed it. And I ran a full scan, codes are showing that there is no communication with the Telematic. No other codes or issue. I would like to have my remote start back with out Toyota getting my driving info.

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[maxx075]

I Installed the AHH connector and NOW my remote start VIA key FOB is also not working. I have confirmed it. And I ran a full scan, codes are showing that there is no communication with the Telematic. No other codes or issue. I would like to have my remote start back with out Toyota getting my driving info.

Seems from this older Tundra Forum thread that the DCM functioning correctly is required to use the key fob to start. Though the consent to use Connected Data services to use the fob remote start seems to have been discontinued.

Unless declining the Connected Services on the newer models is just a placebo (honestly wouldn't be surprised). And you're now seeing the actual DCM not being used.

Definitely a link from the DCM to the ECU that the key fob is using though.

 

[fredygump]

Seems from this older Tundra Forum thread that the DCM functioning correctly is required to use the key fob to start. Though the consent to use Connected Data services to use the fob remote start seems to have been discontinued.

Unless declining the Connected Services on the newer models is just a placebo (honestly wouldn't be surprised). And you're now seeing the actual DCM not being used.

Definitely a link from the DCM to the ECU that the key fob is using though.

I am confident that your vehicle is constantly/ regularly transmitting data to Toyota no matter what you do, unless you disable it yourself.

Their legal justification/ argument is to point out that a person who does not set up an account is identified as a "guest". Because the vehicle is operating under a "guest" user, the data they collect is not "personal data". It is "anonymous" data, not personally identifiable!

I am pretty sure that an insurance company (or other company?) that is buying driving data doesn't care if the driver is identified or not. If they see a driving event they don't like, they could penalize you, whether or not it was actually you. So yeah, even though it is not technically "personal data", the data is connected to the owner of the vehicle.

The data becomes "personal data" when you identify yourself as the driver! And when you identify yourself (i.e. setting up the app), you consent to the tracking stuff.

Once you create an account, or a family creates multiple accounts for each driver, then Toyota can separate the driving data into individual reports for each driver. Isn't that nice of them?

I do not see how Toyota has any ability (or incentive) to remotely disable the transmission of cellular data from your vehicle. They just receive it all of the time. If you don't like that, you have to stop the transmission at your vehicle.

 

[maxx075]

I am confident that your vehicle is constantly/ regularly transmitting data to Toyota no matter what you do, unless you disable it yourself.

Their legal justification/ argument is to point out that a person who does not set up an account is identified as a "guest". Because the vehicle is operating under a "guest" user, the data they collect is not "personal data". It is "anonymous" data, not personally identifiable!

I am pretty sure that an insurance company (or other company?) that is buying driving data doesn't care if the driver is identified or not. If they see a driving event they don't like, they could penalize you, whether or not it was actually you. So yeah, even though it is not technically "personal data", the data is connected to the owner of the vehicle.

The data becomes "personal data" when you identify yourself as the driver! And when you identify yourself (i.e. setting up the app), you consent to the tracking stuff.

Once you create an account, or a family creates multiple accounts for each driver, then Toyota can separate the driving data into individual reports for each driver. Isn't that nice of them?

I do not see how Toyota has any ability (or incentive) to remotely disable the transmission of cellular data from your vehicle. They just receive it all of the time. If you don't like that, you have to stop the transmission at your vehicle.

I disabled my DCM, so this isn't an issue for me.

Was just pointing out that there's definitely a connection between the key fob remote start and the DCM.

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