This procedure covers the removal and replacement of the interior fuse box on a 2022 Rivian EDV 500 electric delivery van, including proper disconnection of the 12V battery system.

Warnings

Tools required

Parts

• Interior fuse box assembly × 1 — Use OEM specification
• Push-pin trim fasteners × 8 — Rivian OEM trim clips
• Fuse box mounting hardware kit × 1 — Use OEM specification if damaged

Preparation

1. Park vehicle on level surface and engage parking brake
2. Ensure vehicle is powered off and key fob is at least 20 feet away from vehicle
3. Allow vehicle to sit for at least 5 minutes after powering off to allow capacitors to discharge
4. Open driver's door to access interior fuse box location (typically under lower dash panel)
5. Document all active fault codes using diagnostic tool if available
6. Take photos of fuse box layout and all installed fuses and relays

Procedure

1. 1

   Disconnect 12V battery
   Open rear cargo doors and locate the 12V battery compartment on the driver side rear panel. Remove the access cover. Using a 10mm socket, disconnect the negative terminal first, then the positive terminal. Secure cables away from battery posts.
2. 2

   Remove lower dash panel
   Locate the lower dash trim panel below the steering column on the driver side. Using trim panel removal tools, carefully pry out the panel starting from the bottom edge. Remove push-pin fasteners (typically 6-8 clips). Disconnect any electrical connectors for diagnostic port or lighting if present.
3. 3

   Access fuse box mounting area
   With the lower panel removed, identify the interior fuse box mounted to the dash support structure. Remove any additional trim or insulation blocking access to the fuse box mounting bolts. The fuse box cover will have a release tab or screw - remove the cover to access fuses and relays.
4. 4

   Document and remove fuses and relays
   Take detailed photos of all fuse and relay positions. Using needle nose pliers, carefully remove all fuses and relays from the fuse box. Place them in labeled containers or on a diagram matching their original positions. Check the fuse box cover legend to ensure all components are accounted for.
5. 5

   Disconnect main wiring harness connectors
   Locate the main wiring harness connectors on the back of the fuse box (typically 2-4 large multi-pin connectors). Release the connector locking tabs by pressing or lifting the security clip. Carefully pull each connector straight out from the fuse box. Note connector orientation and positions.
6. 6

   Remove fuse box mounting fasteners
   Using an 8mm socket or Torx T30 driver (depending on fastener type), remove the mounting bolts securing the fuse box to the dash structure. There are typically 3-4 mounting points. Support the fuse box while removing the final fastener to prevent it from falling.
7. 7

   Remove fuse box from vehicle
   Carefully maneuver the fuse box out from the mounting location. You may need to tilt or rotate it to clear surrounding components. Inspect the mounting area for any damaged wiring, loose fasteners, or corrosion. Clean the mounting surface if necessary.
8. 8

   Inspect and prepare replacement fuse box
   Compare the new fuse box to the old unit to verify correct part. Inspect all connector ports on the new fuse box for shipping plugs or protective covers and remove them. Check that all mounting brackets and grounding points are present. Apply electrical contact cleaner to connector ports if needed.
9. 9

   Install new fuse box
   Position the new fuse box into the mounting location, ensuring proper alignment with mounting holes and connector access. Install mounting bolts hand-tight first to ensure proper alignment, then tighten in a cross-pattern to secure evenly. Ensure the fuse box is firmly seated against the mounting surface.
10. 10

    Reconnect wiring harness connectors
    Align each main wiring harness connector with its corresponding port on the fuse box, matching connector shape and keying. Push each connector firmly until you hear or feel it click into place. Verify the locking tabs are fully engaged. Gently pull on each connector to confirm secure connection.
11. 11

    Reinstall fuses and relays
    Using your photos and the fuse box cover legend, reinstall all fuses and relays into their correct positions. Ensure each fuse is fully seated in its holder. Verify amperage ratings match the original configuration. Install any new fuses if replacing damaged units.
12. 12

    Reconnect 12V battery
    Return to the rear cargo area and reconnect the 12V battery. Connect the positive terminal first, then the negative terminal. Tighten terminals securely with a 10mm socket. Reinstall the battery access cover.
13. 13

    Power up and test systems
    With the key fob nearby, power up the vehicle. Check that the instrument cluster initializes properly and all warning lights follow normal startup sequence. Test major electrical systems including lights, HVAC, power windows, and infotainment system. Check for any new fault codes.
14. 14

    Reinstall interior trim
    Reinstall the fuse box cover if removed. Reconnect any electrical connectors to the lower dash panel. Position the lower dash trim panel and secure with push-pin fasteners. Ensure all clips are fully seated and the panel fits flush with no gaps.

Reassembly

1. Ensure all wiring harness connectors are fully locked and seated
2. Verify all fuses and relays are installed in correct positions per fuse box diagram
3. Confirm all trim panels are secure with no rattles or loose fasteners
4. Replace any damaged push-pin fasteners with new ones

Verification

• Power up vehicle and verify normal instrument cluster initialization without fault codes
• Test all major electrical systems: lights (exterior and interior), power windows, door locks, HVAC blower, infotainment system, and charging port
• Verify no blown fuses after initial power-up
• Check that all body control module functions operate normally
• If fault codes are present, verify they are pre-existing conditions documented during preparation
• Test drive vehicle to ensure all systems function properly under normal operating conditions

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