These instructions apply to the Hyundai Tucson Mk3 (TL) 2015-2020.
For other models, please choose your vehicle here.
Blown a circuit on your Hyundai Tucson Mk3 (TL, 2015–2020)? This guide shows where both fuse boxes are, how to read the right one, and how to change a fuse safely. Fuse layouts vary by engine, trim and market, so the lid legend on your own car is always the final word.
Where the Fuse Boxes Are
- Interior fuse box — in the lower dash on the driver’s side, behind a clip-off cover below the steering wheel. This holds most cabin and convenience circuits (lights, windows, central locking, cluster, smart key).
- Engine-bay fuse box — a large black box in the engine compartment, next to the 12 volt battery. This holds the high-current fuses and relays for the engine, cooling fans and charging system, plus the main fuses.
Read the Legend on Your Own Car
The removable cover over each box carries a printed map of every fuse, its amperage and what it protects. On the Tucson the interior cover prints the layout on its inner face (part number 91941-D7640 on the car shown). Match the symbol or label to the slot before you touch anything — the exact positions differ between petrol and diesel cars and across trim levels, so no generic chart is reliable for your specific build.
How to Change a Fuse
- Switch the ignition and the affected circuit off.
- Open the cover and find the suspect fuse from the printed legend.
- Pull the fuse straight out with the plastic puller clipped inside the box — never use metal pliers, which can short the terminals.
- Look through the fuse: a broken metal strip means it has blown.
- Fit a new fuse of the exact same amperage (the number printed on top and color-coded). A higher rating can overheat the wiring.
- Test the circuit, then refit the cover.
If the New Fuse Blows Again
A fuse that blows immediately points to a fault in that circuit — a chafed wire, a failed component or water ingress. Do not keep fitting fuses or step up the amperage; have the circuit diagnosed. Safety-critical circuits such as airbags, ABS and the glow plugs on the diesel should always be left to a workshop.
Frequently Asked Questions
Where is the fuse box on a Hyundai Tucson Mk3?
There are two: one in the lower dash on the driver’s side under the steering wheel, and one in the engine bay beside the battery. The interior box covers most cabin circuits; the engine-bay box holds the high-current and main fuses.
How do I know which fuse is which?
Read the legend printed on the inside of the fuse-box cover on your own car. The layout varies by engine and trim, so match the label to the slot rather than relying on a generic diagram.
Can I use a higher-amp fuse if I don’t have the right one?
No. A fuse protects the wiring by design; fitting a higher rating can let the wire overheat and start a fire. Always replace like for like.
If a blown fuse has left a warning light or stored a fault code, you can look the code up on autodtcs.com.
Independent guide — not affiliated with Hyundai. Always follow your official service manual and safety precautions. Read our full disclaimer.