These instructions apply to the Kia Stonic Mk1 (YB) 2017-Present.
For other models, please choose your vehicle here.
If something electrical has stopped working on your Kia Stonic (YB, 2017–present) — a dead 12V socket, a window, the radio or a light — a blown fuse is the first thing to check. The Stonic has two fuse boxes: one in the engine bay and one inside the cabin on the driver’s side. Here is where to find them and how to change a fuse safely.
Where the Fuse Boxes Are
- Engine-compartment fuse and relay box — a black box near the 12V battery under the bonnet. It carries the larger fuses and relays for high-current systems (cooling fan, ABS, ignition, main power feeds). Unclip the lid to reach them.
- Passenger-compartment fuse box — behind a cover low on the driver’s side of the dash, around knee height by the kick panel. This box holds the smaller fuses for interior circuits such as the windows, sockets, lighting and infotainment.
Each box lid (or the inside of the cover) carries a legend that maps every slot to its circuit and amperage. Exact assignments vary by engine, transmission, trim and market, so always read the legend on your own car rather than copying a chart — that is the only list guaranteed to match your Stonic.
How to Change a Fuse
- Switch off the ignition and the circuit that failed (for example turn off the lights or the accessory), then open the relevant fuse box.
- Identify the fuse for the dead circuit using the legend on the lid or in the owner’s handbook.
- Pull the fuse straight out with the little plastic puller clipped inside the box — never use pliers or metal, which can short the box.
- Check the element: hold the fuse to the light. A blown fuse has a broken metal strip or a scorched, cloudy body.
- Fit a new fuse of the same amperage (the number printed on top, matched to the legend). Push it fully home and test the circuit.
- If the new fuse blows again, there is a fault in that circuit. Do not fit a higher-rated fuse — that removes the protection and risks melted wiring or a fire. Have the circuit checked instead.
A Few Safety Notes
- Keep a few spare fuses of the common ratings in the glovebox; some cars carry spares and a puller clipped in the fuse box itself.
- Fuses for safety and control systems (airbags, ABS, engine and transmission control) should be left to a workshop if they keep blowing — the fault behind them matters more than the fuse.
- A fuse that blows the instant you replace it points to a dead short; one that blows occasionally points to an intermittent fault or an overloaded accessory.
Frequently Asked Questions
How many fuse boxes does the Kia Stonic have?
Two: a main fuse and relay box in the engine bay near the battery, and a smaller fuse box inside the cabin behind a cover on the driver’s side of the dash. Interior circuits are usually in the cabin box; high-current systems are under the bonnet.
Where is the interior fuse box on a Kia Stonic?
It sits low on the driver’s side of the dashboard, behind a removable cover near the kick panel at knee height. Pull the cover off to see the fuse layout printed on the inside.
Which fuse is which?
Read the legend on the fuse-box lid or cover, or the fuse chart in your owner’s handbook. Assignments and amperages differ between engines and trims, so the label on your own car is the one to trust.
Can I fit a higher-rated fuse so it stops blowing?
No. A fuse is sized to protect that circuit’s wiring; fitting a bigger one lets too much current flow and can melt the harness or start a fire. If a fuse keeps blowing, fix the underlying fault.
If a warning light is on as well, decode the fault code on autodtcs.com. For more Stonic jobs, see our Kia Stonic guides.
Independent guide — not affiliated with Kia. Always follow your official service manual and safety precautions. Read our full disclaimer.