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Is Range effecting my car ?

Old 01-12-2019, 02:27 PM
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Originally Posted by Pisswilly View Post

Yes, but ONSTAR has a record of it, so even if you remove it, GM will know you were using it.
I also have an Owl camera that when left plugged in does the same. I don't think a dash/security cam will 'void my warranty'. How can OnStar tell if it's a Range AFM or Owl or other?
If it that was their basis, I am reasonably comfortable that an attorney, electrical engineer and a competent mechanic's testimony would refute their claim.
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Old 01-12-2019, 03:05 PM
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Exactly as MlwYlw stated, any number of things plugged into that port will prevent OnStar from running diagnostics. After a mouse attacked my 2006 GMC pickup several years ago I got the same OnStar "unable to run diags" email two months in a row due to a blown fuse. And OBD-II code reader plugged in when OnStar tries to run monthly diagnostics will create the same "fault".

There are a lot of things you can do which will kill your warranty but an email to the owner because OnStar couldn't complete diagnostics isn't one of them.
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Old 01-12-2019, 03:14 PM
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So Range is still the answer.
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Old 01-12-2019, 03:32 PM
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OnStar is speculating that " This issue may be caused by an aftermarket device plugged into your vehicle's diagnostic port. " It could be one of any number of legitimate OBD II devices that could be used at any given time, as mentioned above. They don't know for a fact that a Range AFM disabler is being used as it leaves no electronic footprint.

I'm comfortable that there will be no negative issues regarding the vehicle's factory warranty as a result of using the Range device.
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