2021 Tesla Model Y Fuse Box Diagram & Amperage
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Quick Answer
The 2021 Tesla Model Y features multiple fuse boxes to distribute power and protect various electrical components. Unlike traditional gasoline-powered vehicles, the Model Y^{\prime}s electrical system is primarily managed by sophisticated electronic control units (ECUs) and a high-voltage battery. However, it still incorporates several fuse boxes for 12V auxiliary systems. The main fuse box locations are typically:
- Front Under-Hood (Frunk): Located in the front trunk area, often beneath a plastic cover.
- Passenger Side Dash Kick Panel: Accessible near the passenger side footwell.
- Rear Cargo Area (Trunk): Usually located on the driver's side panel within the trunk.
Under-Hood (Frunk) Fuse Box
The under-hood fuse box in the Tesla Model Y primarily handles circuits related to the 12V battery, various control units, and some auxiliary systems. Due to the integrated nature of Tesla's electrical architecture, specific fuse assignments can be highly detailed and vary slightly. Always refer to the vehicle's owner's manual or the fuse box lid legend for the most accurate and up-to-date information.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 10A | Red | 12V Battery Sense / Charging |
| F2 | 15A | Blue | Front Body Controller (FBC) / Headlights / Wipers |
| F3 | 5A | Tan | Autopilot Computer Power Supply |
| F4 | 20A | Yellow | DC/DC Converter Control |
| F5 | 10A | Red | Brake System Control Module (ABS) |
| F6 | 5A | Tan | Airbag Control Module (ACM) |
| F7 | 15A | Blue | Climate Control Blower Motor (Front) |
| F8 | 10A | Red | Headlight (Low Beam - Left) |
| F9 | 10A | Red | Headlight (Low Beam - Right) |
| F10 | 5A | Tan | High Beam / Daytime Running Lights (DRL) Controller |
| F11 | 20A | Yellow | Power Steering Control Module |
| F12 | 15A | Blue | Horn |
| F13 | 25A | Clear | Front Wiper Motor |
| F14 | 30A | Green | Cabin Heating Element (Auxiliary) |
| F15 | 10A | Red | Onboard Charger (OBC) Control |
Relays: In this area, you might find relays associated with the 12V system, such as those for the main contactor or specific high-power auxiliaries. Their exact locations are often integrated into larger control modules rather than standalone, easily replaceable units as in older vehicles.
Passenger Side Dash Kick Panel Fuse Box
This fuse box typically handles interior accessories, infotainment, and various cabin creature comforts. Access is usually by removing a panel on the passenger side of the center console or directly in the kick panel area.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 5A | Tan | Infotainment System / Touchscreen |
| F2 | 15A | Blue | 12V Power Outlet (Cigar Lighter - Front) |
| F3 | 10A | Red | USB Charging Ports |
| F4 | 5A | Tan | HVAC Control Module (Cabin) |
| F5 | 7.5A | Brown | Interior Lighting / Dome Lights |
| F6 | 10A | Red | Audio Amplifier (Small) |
| F7 | 5A | Tan | Center Console Controls / Switches |
| F8 | 15A | Blue | Power Windows (Passenger Side) |
| F9 | 10A | Red | Seat Heater (Passenger) |
| F10 | 5A | Tan | Door Control Module (Passenger) |
| F11 | 5A | Tan | Wireless Phone Charger |
| F12 | 7.5A | Brown | Side Mirror Adjustment / Heating |
Relays: Relays in this area are generally integrated into control modules for things like power window operation, seat heating, or accessory power.
Rear Cargo Area (Trunk) Fuse Box
The fuse box in the rear cargo area is dedicated to components located in the rear of the vehicle, including taillights, rear power outlets, and certain aspects of the vehicle
Before you pull a fuse on the 2021 Tesla Model Y
- Use the label printed on the panel cover or the owner's manual for your exact build. Layouts change with options, model year and build date, so a chart for another truck can be wrong.
- Replace a blown fuse only with the same amp rating. A larger fuse can let wiring overheat.
- A fuse that blows again right away means a short or failing component downstream. Find the cause before replacing it again.
- A good fuse doesn't prove the circuit works — relays, grounds and connectors fail too.
- Disconnect the battery before working near high-current fuses or cables.
Learn more: How fuses, relays and truck electrical systems work
More specs for the 2021 Tesla Model Y
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2021 Tesla Model Y Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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