Is Having this Low-Voltage Battery Light on Normal?

[dnlpnd]

This seems weird to me that this light is on in accessory mode and goes out in "On" mode. Is this normal?

Also, I could have sworn I saw a pop-up that came up that said Service Vehicle Soon, but then it cleared and hasn't come back on again.

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[Maquis]

I think it’s normal.
There‘s really no reason to use accessory mode. Many EVs don’t even have one.

 

[RickLightning]

This seems weird to me that this light is on in accessory mode and goes out in "On" mode. Is this normal?

Also, I could have sworn I saw a pop-up that came up that said Service Vehicle Soon, but then it cleared and hasn't come back on again.

That is saying to you "WHY ARE YOU USING ACCESSORY MODE AND DRAINING THE 12V BATTERY?"

 

[TaxmanHog]

Normal reminder that you're running just on the 12v battery, the systems will intervene at 40% SOC to bump the battery, you can "start" the truck to make it go away. If the icon remains while in RUN mode, then I would be concerned.

This brings to mind a common mode from ICE vehicles, when you switch the ignition ON but not bumped the starter, many of the dash indicators will illuminate as a BULB TEST to ensure that all indicators are signalling, legacy behaviour from the ancient days of filament incandescent bulbs.

 

[dnlpnd]

Normal reminder that you're running just on the 12v battery, the systems will intervene at 40% SOC to bump the battery, you can "start" the truck to make it go away. If the icon remains while in RUN mode, then I would be concerned.

This brings to mind a common mode from ICE vehicles, when you switch the ignition ON but not bumped the starter, many of the dash indicators will illuminate as a BULB TEST to ensure that all indicators are signalling, legacy behaviour from the ancient days of filament incandescent bulbs.

Thank you for the helpful response! The light does go out in the "On" mode. As you said, I kinda suspected this was simply an indicator that you're running on the 12V battery. Thanks again!

 

[TaxmanHog]

If the truck is operating properly, be it Run, Accessory or Off, the 12v BMS and DC/DC inverter will operate as needed to maintain the low voltage battery.

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