2021 Tesla Model X Fuse Box Diagram & Amperage
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Quick answer
The 2021 Tesla Model X features multiple fuse box locations to protect its complex electrical systems. You'll find fuse boxes in the following locations:
- Under-hood: Located in the frunk (front trunk) area, typically on the passenger side.
- Right Kick Panel: Behind the kick panel on the passenger side of the cabin.
- Left Kick Panel: Behind the kick panel on the driver's side of the cabin.
- Rear Trunk/Cargo Area: In the rear cargo area, often on one of the side panels.
Under-Hood Fuse Box (Frunk)
The under-hood fuse box in your 2021 Tesla Model X primarily protects high-current circuits and critical powertrain components. Always consult the fuse diagram printed on the inside of your fuse box cover for the most accurate information for your specific vehicle trim.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 40A | Green | Drive Unit Power (Front) |
| F2 | 40A | Green | Drive Unit Power (Rear) |
| F3 | 30A | Pink | HVAC Blower Motor |
| F4 | 20A | Yellow | ABS/ESC Module |
| F5 | 15A | Blue | Air Suspension Compressor |
| F6 | 10A | Red | Headlight Low Beam (Right) |
| F7 | 10A | Red | Headlight Low Beam (Left) |
| F8 | 15A | Blue | Headlight High Beam (Right) |
| F9 | 15A | Blue | Headlight High Beam (Left) |
| F10 | 5A | Tan | ECM/PCM (Engine Control Module / Powertrain Control Module) |
| F11 | 5A | Tan | Ignition System |
| F12 | 20A | Yellow | Wiper Motor |
| F13 | 15A | Blue | Horn |
| F14 | 5A | Tan | Starter Relay Control (Vehicle has no traditional starter, this is for auxiliary systems) |
Relay Locations (Under-hood): Within this fuse box, you'll also find several relays. Common relays include the Blower Motor Relay, ABS Pump Relay, and Headlight Relays. Refer to your fuse box lid diagram for precise identification.
Passenger Side Kick Panel Fuse Box
The passenger side kick panel fuse box typically houses fuses for various interior accessories and convenience features. To access it, you'll need to remove the passenger side kick panel trim.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 10A | Red | Infotainment System / Radio |
| F2 | 15A | Blue | Front 12V Power Outlet / Cigar Lighter |
| F3 | 5A | Tan | Airbag System (Supplemental Restraint System) |
| F4 | 7.5A | Brown | Interior Lights |
| F5 | 10A | Red | Power Window (Passenger Front) |
| F6 | 5A | Tan | HVAC Control Module |
| F7 | 7.5A | Brown | Side Mirror (Passenger) |
| F8 | 5A | Tan | TPMS Module |
| F9 | 10A | Red | Seat Heater (Passenger) |
Driver Side Kick Panel Fuse Box
Similar to the passenger side, the driver's side kick panel fuse box manages fuses for other interior functions and driver-specific controls. Access requires removing the driver's side kick panel.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 10A | Red | Instrument Cluster |
| F2 | 15A | Blue | Rear 12V Power Outlet / USB Ports (Front) |
| F3 | 5A | Tan | Steering Column Module |
| F4 | 7.5A | Brown | Power Door Locks |
| F5 | 10A | Red | Power Window (Driver Front) |
| F6 | 5A | Tan | Brake Lights / Stop Lamps (Control) |
| F7 | 7.5A | Brown | Side Mirror (Driver) |
| F8 | 5A | Tan | Washer Pump |
| F9 | 10A | Red | Seat Heater (Driver) |
Rear Trunk/Cargo Area Fuse Box
This fuse box in the rear of the Tesla Model X typically handles circuits for the rear of the vehicle, including taillights, charging systems, and other cargo area accessories.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 10A | Red | Tail Lights / Park Lights (Left) |
| F2 | 10A | Red | Tail Lights / Park Lights (Right) |
| F3 | 15A | Blue | Rear 12V Power Outlet (Trunk) |
| F4 | 20A | Yellow | Trailer Brake Controller (If Equipped) |
| F5 | 20A | Yellow | Power Liftgate Module |
| F6 | 15A | Blue | Rear Wiper Motor |
| F7 | 5A | Tan | Reverse Lights |
| F8 | 10A | Red | Charging Port Door |
| F9 | 7.5A | Brown | Rear Seats Power Fold |
Relay Locations (Rear Trunk): Relays in the rear trunk area might include those for the power liftgate and trailer brake (if installed). Always check your fuse box lid for exact locations.
How to Test a Fuse
Testing a fuse is a straightforward process you can perform with a few basic tools:
- Safety First: Ensure the vehicle's ignition is off and, if possible, disconnect the negative battery terminal, especially when working with high-current fuses.
- Locate the Fuse: Identify the suspect fuse using the diagrams above and your vehicle's fuse box legend.
- Visual Inspection: Many fuses have a visible wire inside. If this wire is broken or melted, the fuse is blown and needs replacement.
- Use a Fuse Tester or Multimeter:
- Fuse Tester: Insert the tester's probes into the two small test points on the top of the fuse. If the light illuminates, the fuse is good. If not, it's blown.
- Multimeter: Set your multimeter to the continuity setting (often indicated by a speaker or ohm symbol). Touch the probes to the metal contact points on the top of the fuse. A good fuse will show a reading close to zero ohms or emit a beep. An open circuit (blown fuse) will show an
Before you pull a fuse on the 2021 Tesla Model X
- 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 X
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 X 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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