This procedure covers the removal and replacement of the interior fuse box (also called the instrument panel fuse block) located on the driver's side of the 2014-2018 Chevrolet Silverado 1500 with the 5.3L V8 engine.

Warnings

Tools required

Parts

• Interior fuse box assembly × 1 — GM Part 23428876 or equivalent
• Trim panel clips (if broken) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn ignition to OFF position and remove key
3. Open driver's door and lower windows to prevent lockout
4. Disconnect negative battery cable and secure away from terminal
5. Wait minimum 2 minutes for airbag system capacitor discharge
6. Photograph or document all fuse and relay positions in the fuse box
7. Gather all necessary tools and parts

Procedure

1. 1

   Remove lower driver's side kick panel
   Locate the lower kick panel trim on the driver's side below the steering column. Use trim panel removal tools to carefully release the retaining clips starting from the bottom edge. Pull the panel outward and down to remove it completely. Set aside with clips for reinstallation.
2. 2

   Remove fuse box cover
   Open the fuse box cover by pulling the tab on the left side. The cover is hinged and will swing open. Remove the fuse diagram label from inside the cover for reference. If replacing the fuse box, retain this cover for the new unit.
3. 3

   Document and remove all fuses and relays
   Using your documentation from preparation, carefully remove all fuses and relays from the fuse box. Use needle nose pliers if needed for tight fuses. Place them in organized groups or labeled containers matching their original positions. This is critical for proper reinstallation.
4. 4

   Disconnect electrical connectors
   Locate all electrical harness connectors on the back and sides of the fuse box. There are typically 4-6 large multi-pin connectors. Press the release tabs and carefully pull each connector straight out. Label each connector with tape or take photos showing exact positions. Some connectors may have secondary locking tabs that must be released first.
5. 5

   Remove ground strap connections
   Locate the ground strap bolted to the fuse box bracket or nearby body panel. Use a 10mm socket to remove the ground strap bolt. Ensure the contact surface on the body is clean and free of paint or corrosion for proper grounding during reinstallation.
   ℹ️Clean ground contact surfaces with a wire brush before reassembly to ensure proper electrical connection
   Torque spec

   Ground Strap Bolt16 Nm (12 lb-ft)
6. 6

   Remove fuse box mounting fasteners
   Locate the mounting bolts securing the fuse box to the instrument panel bracket. There are typically 3-4 bolts accessible from the front and side. Use a 7mm or 10mm socket with extensions as needed to remove all mounting bolts. Keep track of any spacers or washers on the mounting points.
   Torque spec

   Bracket Bolts26 Nm (19 lb-ft)
7. 7

   Remove fuse box assembly
   With all connectors and mounting bolts removed, carefully maneuver the fuse box out of its mounting location. It may be necessary to tilt or angle the unit to clear surrounding components. Work slowly to avoid damaging any remaining wiring or trim pieces. Once clear, remove the fuse box completely from the vehicle.
8. 8

   Install new fuse box assembly
   Position the new fuse box into the mounting location, carefully routing it past any obstructions. Align the mounting holes with the bracket. Ensure no wiring is pinched behind the unit. Start all mounting bolts by hand before tightening to ensure proper alignment.
   Torque spec

   Bracket Bolts26 Nm (19 lb-ft)
9. 9

   Reconnect ground strap
   Verify the ground contact surface on the body is clean and free of corrosion. Position the ground strap to its mounting location and install the bolt. Tighten to specification. Ensure the connection is tight and the strap has a clean metal-to-metal contact.
   Torque spec

   Ground Strap Bolt16 Nm (12 lb-ft)
10. 10

    Reconnect electrical connectors
    Using your labels and photos as reference, reconnect all electrical harness connectors to the fuse box in their original positions. Push each connector firmly until you hear or feel the locking tab engage. Verify each connector is fully seated and locked. Tug gently on each harness to confirm secure connection.
    ⚠Ensure connectors are in correct positions - incorrect installation can cause electrical system damage or vehicle malfunction
11. 11

    Install fuses and relays
    Using your documentation and the fuse diagram, reinstall all fuses and relays into their correct positions in the new fuse box. Press each component firmly into place until fully seated. Double-check each position against your documentation to prevent electrical system issues.
12. 12

    Reinstall fuse box cover and kick panel
    Close the fuse box cover ensuring it latches properly. Reattach the fuse diagram label if applicable. Position the lower kick panel trim piece and press firmly to engage all retaining clips. Verify the panel is secure and flush with surrounding trim.

Reassembly

1. Reconnect negative battery cable to battery terminal and torque to 6.0 Nm (4.0 lb-ft) - do not overtighten
2. Reset clock, radio presets, and power window auto-up/down functions as needed
3. Verify all interior electrical functions operate correctly before closing panels

Verification

• Turn ignition to ON position without starting engine and verify instrument cluster illuminates with no warning lights related to fuse box
• Test all major electrical systems: headlights, interior lights, power windows, HVAC controls, radio, and gauge cluster
• Start engine and verify all systems continue to function properly with no electrical issues
• Check for any warning lights on instrument cluster and scan for diagnostic trouble codes if check engine or other warning lights appear
• Verify all fuses and relays are properly seated and functioning in correct positions
• Confirm kick panel is secure and all trim pieces are properly installed

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