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What is the ON / OFF Switch Inside the Fuse Box of a Kia / Hyundai

If you take a look inside the fuse box of your Kia or Hyundai vehicle, you may have noticed the OFF/ON switch. You may be wondering what this switch does.

When the fuse switch is turned OFF, multiple accessories on your car will not work.

If you have problems with accessories not working, such as no radio, cigarette outlet, power windows, etc., make sure the switch is turned on.

What is the ON / OFF Switch Inside the Fuse Box of a Kia / Hyundai



Here is a list that will stop working with the fuse switch in OFF position:

  • radio
  • clock
  • power seats
  • windows
  • smart key

You will need to set the clock if you turn the switch OFF and then back ON.

If you plan on operating your Kia/Hyundai, always have the FUSE SWITCH in the ON position.

When should you use the ON / OFF switch?

Use the fuse box ON/OFF switch if you plan on parking your vehicle for a period of time or if your vehicle is being transported.

By turning the fuse in the OFF position, your car battery is less likely to drain by unnecessary accessories, or parasitic current draws.

Models with ON/OFF switch

The following models (depending on trim) could have the ON/OFF switch.

  • Kia: Cadenza Forte Optima Rio Sedona Sorento Soul Sportage K900
  • Hyundai: Accent Azera Elantra, Santa Fe, Sonata, Tucson, Veloster



As long as you don't have a smart key it will start, but you shouldn't do this. Your teenager may not be able to open the window for example, which is a safety issue. You don't have to program the key. But more importantly, why would you want to do this??


Why is the fuse always on ? Is it safe


I have turned the on&off switch on the fuse panel and now the vehicle will not start. I have a key fob.


2019 Kia Cerato, no on/off switch.


I have a teenager. if I turn the fuse switch off would he still be able to to start and drive the vehicle. Plus if so when I put it back to on will I have to get the key reprogramed.


My clock is not showing. The clock icon in the settings is greyed out. Should I turn the fuse to OFF then back to ON? Will this turn the clock back on? It stopped at 12:07 p.m.

Robert O'Brien

In reply to by Visitor

Did you ever get an answer to this?

Sally Einberg

I have a 2019 KIA Optima very little mileage but I had to have a jump start because it was left without starting it because of the pandemic. It is in my garage which is attached to my house. I let it run for a long time then I thought I would take it for a ride but I could not get the car out of park & it says the fuse switch should be on and I don't know how to find it. I know that sometimes near where they charge it the fuse box is under the hood near where they jump start it.

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