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dailyssv
07-31-2020, 01:19 AM
Our 2019 Supra SA 400 had low voltage warning message running at 3500 rpm Message said bring rpms up to 1500. Anyone else had this issue?

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Larry Arizona
08-02-2020, 07:59 AM
Our 2019 Supra SA 400 had low voltage warning message running at 3500 rpm Message said bring rpms up to 1500. Anyone else had this issue?

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The 2019 moombas and Supras changed to a new alternator, there is a known wiring issue at the alternator, your dealer will fix it.


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dailyssv
08-18-2020, 03:34 PM
Thanks. It was a bad altanator. When voltage is low they replace it and if voltage is high it's the harness is what service reported.

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2in2out
08-18-2020, 05:22 PM
In the Moomba forums it was recently discussed that 2019-2021 should be running on both sets of batteries (1+2). I guess this is referenced in the owner's manual.

Here is link to one of the several threads:

https://forum.moomba.com/showthread.php?35616-2020-Alternator-Issues