Prius energy storage meter does not light up

Why does my Prius light stay on?

Turn off your car and let it sit for 5-10 minutes. Then, try starting it back up again to reset it. If the light turns off, it may have been a system error and there isn’t anything wrong with your car. However, if the light stays on, there may be a problem with your Prius.

What if my Toyota Prius has a maint reqd light?

If your Toyota Prius has a maintenance required light, have it brought in and maintained. Or, if you're the DIY type, ask your dealer for a print out of the exact schedule for your model year.

Will a Prius deplete the battery?

The Prius will never deplete the battery completely (not even close), nor will it let the battery get fully charged (somewhat close). However, the HV ECU will try to keep the battery SOC (State of Charge) at 6 bars when cruising.

What does the battery SoC display on the Prius mean?

The battery SOC display on the Prius is only showing you the portion of the battery's charge capacity that the Prius will actually use, which is about 40% of what the battery is really capable of. The Prius will never deplete the battery completely (not even close), nor will it let the battery get fully charged (somewhat close).