Hyundai Tucson Fuse Box: Location & Guide
TL;DR
The Tucson has one engine-bay fuse box and one interior (driver footwell) fuse box, no trunk box; always confirm fuse assignments on the lid diagram or owner's manual, not from a generic guide.
Where the Hyundai Tucson fuse boxes are located
The Tucson uses a two-box layout across all three North American generations. The engine compartment fuse/relay box sits at the back of the engine bay against the firewall, close to the battery on the driver's side; it houses the higher-amperage fuses and relays for things like the headlights, cooling fan, ABS and starting system, and is opened by releasing the plastic side clips or removing one or two retaining screws before lifting the lid straight up. The interior fuse box is mounted low in the driver's footwell, behind a small panel to the left of the brake pedal (sometimes called the kick panel); you access it by pulling the cover toward you or unclipping it at the top edge, and it controls circuits such as the interior lights, radio/infotainment, power outlets and gauge cluster.
Fuse box locations by generation
| Generation / years | Fuse box | Location | How to access |
|---|---|---|---|
| 2nd gen (LM), 2010-2015 | Engine compartment box | Rear of engine bay, driver's side, near battery | Unclip or unscrew the lid, lift straight up |
| 2nd gen (LM), 2010-2015 | Interior box | Driver's footwell, left of pedals | Pull or unclip the small trim cover |
| 3rd gen (TL/TLE), 2016-2021 | Engine compartment box | Rear of engine bay, driver's side, near battery | Release side clips, lift lid |
| 3rd gen (TL/TLE), 2016-2021 | Interior box | Driver's footwell / kick panel | Remove lower dash trim cover |
| 4th gen (NX4), 2022-present | Engine compartment box | Rear of engine bay, driver's side, near battery | Release side clips, lift lid |
| 4th gen (NX4), 2022-present | Interior box | Driver's footwell / kick panel | Remove lower dash trim cover |
Finding the official fuse legend
Do not rely on a generic fuse map: the printed legend glued to the inside of each box lid is specific to your car's build, and the owner's manual electrical/maintenance chapter reprints the same diagram with fuse names in full. Always match the diagram for your specific vehicle before pulling or replacing anything.
Fuses that commonly blow, by function
- Cigarette lighter / 12V power outlet: a blown fuse here kills phone chargers and dash cams; usually caused by a cheap accessory drawing too much current or a shorted plug.
- Radio / infotainment: a dead screen or no sound with everything else working normally points to this fuse, often after an aftermarket stereo or amp install.
- Interior lights: dome light, map lights and door courtesy lights sharing one circuit will all go dark together if this fuse fails.
- Blower motor: no airflow from any vent (heat, AC or fan) at any speed setting is the classic symptom of this fuse or its relay failing.
- Fuel pump relay: a no-start with cranking but no fuel delivery, or the engine cutting out while driving, can point to this fuse or relay.
Checking and replacing a fuse safely
Turn the ignition off, pull the fuse straight out with the plastic fuse puller usually clipped inside the box lid, and inspect the thin metal element inside the fuse body - a blown fuse shows a visibly broken or discolored strip. A test light or multimeter across the fuse terminals with the key on confirms power on one side but not the other. Always replace with the exact same amperage rating printed on the fuse and box lid; installing a higher-amp fuse can let a wiring fault overheat before the fuse trips, which is a fire risk.
When a fuse keeps blowing
A fuse that blows again immediately after replacement, or blows repeatedly within days, points to a short circuit or failing component downstream rather than a one-time overload, and swapping fuses repeatedly will not fix it. In these cases pulling stored diagnostic trouble codes with an OBD-II scan tool - which is this site's specialty - can point straight to the affected circuit or module instead of guessing, saving a repeated trip to the fuse box.
Summary
| Number of fuse boxes | 2 (engine bay + interior) |
|---|---|
| Engine bay box location | Firewall area near battery, driver's side |
| Interior box location | Driver's footwell, left of pedals (kick panel) |
| Trunk fuse box | None on Tucson |
| Official fuse legend source | Printed on box lid + owner's manual electrical chapter |
| Common failure points | 12V outlet, radio, interior lights, blower motor, fuel pump relay |
| Repeat-blow fuse means | Likely short circuit - check stored fault codes |
Full diagnostics
For the complete step-by-step diagnostic and repair guide, see Hyundai Tucson: Common Problems, Fault Codes & Repairs.
Frequently asked questions
Where is the fuse box on a Hyundai Tucson?
The Hyundai Tucson has two fuse boxes on every North American generation: an engine-bay fuse/relay box against the firewall near the battery on the driver's side, and an interior fuse box low in the driver's footwell behind a small trim panel to the left of the pedals. There is no separate trunk fuse box.
How do I open the Hyundai Tucson interior fuse box?
Pull or unclip the small trim cover in the driver's footwell to the left of the brake pedal (sometimes called the kick panel); it is held by clips, not screws, on most model years, and lifts or slides off by hand.
Which Hyundai Tucson fuse controls the cigarette lighter or 12V outlet?
The exact fuse number varies by year and trim, so check the diagram printed on the inside of the fuse box lid or the owner's manual electrical chapter rather than a generic list; the outlet fuse lives in the interior fuse box in most Tucson generations.
Why does my Hyundai Tucson blower motor fuse keep blowing?
A blower fuse that blows repeatedly usually means the blower motor itself, its resistor/control module, or the wiring to it has a short rather than the fuse simply being weak; replacing the fuse alone will not fix a repeat failure, and a scan for stored fault codes can help pinpoint the circuit before more parts are swapped.