This procedure covers the removal and replacement of the airbag control module (ACM) on the 2024 Rivian EDV 500, including proper disconnect procedures and system reset protocols.

Warnings

Tools required

Parts

• Airbag control module (ACM) × 1 — Use OEM specification
• Module mounting bracket (if damaged) × 1 — Use OEM specification
• Push-pin retainers for center console × 5 — Replace any broken during removal

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off vehicle completely using center screen power-off sequence
3. Open front hood and locate 12V battery in front compartment
4. Disconnect 12V negative battery terminal and isolate cable away from battery
5. Wait minimum 10 minutes for airbag system capacitors to discharge completely
6. Verify high voltage system is disabled (orange HV indicator should not be visible)
7. Connect scan tool and retrieve all stored airbag fault codes for documentation
8. Take photos of module location and connector orientation before removal
9. Wear anti-static wrist strap connected to vehicle chassis ground point

Procedure

1. 1

   Remove center console lower panel
   Starting from the rear of the center console, use plastic trim tools to carefully release the lower panel clips. There are typically 6-8 push-pin retainers securing the panel. Work from back to front, applying even pressure to avoid breaking clips. Once clips are released, slide panel rearward slightly then lift to remove.
2. 2

   Remove center console side panels
   Remove both left and right side trim panels of the center console. Use trim removal tools to release the clips at the top edge first, then work downward. Each panel is secured with approximately 4-6 clips. Disconnect any electrical connectors for USB ports or switches if equipped on these panels.
3. 3

   Remove center console storage compartment
   Open the center console storage compartment fully. Remove the rubber mat or liner. Locate and remove the T25 Torx screws securing the storage bin (typically 4 screws at corners). Lift storage compartment assembly out, disconnecting any wireless charging pad connectors or 12V outlet connectors as needed.
4. 4

   Access airbag control module mounting location
   The airbag control module is located under the center console, typically mounted to a bracket on the transmission tunnel. Use flashlight to locate the silver or black rectangular module (approximately 4x6 inches) with multiple yellow connectors. Clear any wire harnesses or insulation that may be blocking access.
5. 5

   Document and disconnect airbag module connectors
   The ACM will have 2-4 yellow SRS connectors. Take photos of connector positions and orientations. Each connector has a secondary locking mechanism (typically red or yellow slider). Slide secondary locks to unlock position. Press release tabs and carefully pull connectors straight off module terminals. Do not twist or bend connector pins.
6. 6

   Remove airbag control module mounting fasteners
   Locate the module mounting bolts or screws securing the ACM to its bracket. These are typically 10mm bolts or T30 Torx screws (usually 2-3 fasteners). Remove all mounting fasteners and keep them organized for reinstallation. Support the module as you remove the last fastener to prevent it from falling.
7. 7

   Remove airbag control module
   Carefully slide the airbag module out of its mounting bracket. Handle the module by its edges only, avoiding contact with connector terminals or circuit board components. Place the old module on a clean, static-free surface away from the work area. Do not place near sources of electrical interference or magnetic fields.
8. 8

   Inspect mounting location and bracket
   Examine the mounting bracket for any damage, cracks, or corrosion. Check that all mounting threads are intact. Inspect the area for any signs of water intrusion, debris, or damaged wire harnesses. Clean mounting surface with isopropyl alcohol if needed. If bracket is damaged, replace before installing new module.
9. 9

   Install new airbag control module
   Remove new ACM from anti-static packaging only when ready to install. Position new module into mounting bracket, ensuring proper orientation (connector side should face toward wire harness access). Install mounting fasteners finger-tight first to ensure proper alignment, then tighten securely (use factory torque specification if available, otherwise snug firmly without over-torquing).
10. 10

    Connect airbag module connectors
    Carefully align each yellow SRS connector with its corresponding terminal on the new module. Refer to photos taken during removal for correct positions. Push connectors straight onto terminals until they click into place. Engage secondary locking mechanisms by sliding locks to locked position. Verify each connector is fully seated and locked.
11. 11

    Verify electrical connections
    Visually inspect all connections to ensure they are fully engaged and properly locked. Gently pull on each connector to confirm it is secure. Check that no wires are pinched, stretched, or routed incorrectly. Ensure no connectors are reversed or cross-connected.
12. 12

    Reconnect 12V battery
    Return to front compartment and reconnect the 12V negative battery terminal. Tighten terminal connection securely. Do not turn on vehicle yet. The airbag system will perform an initial self-check when the vehicle is powered on.
13. 13

    Program and initialize airbag module
    Connect Rivian diagnostic software or compatible scan tool to vehicle OBD-II port. Power on vehicle to accessory mode only (do not start drive motors). Use diagnostic software to perform airbag module initialization and programming sequence. This typically includes VIN programming, sensor calibration, and crash data configuration. Follow all on-screen prompts exactly as directed. This step is critical and cannot be skipped.
14. 14

    Clear fault codes and verify system operation
    Using diagnostic software, clear all airbag system fault codes. Cycle vehicle power off and back on. Perform airbag system scan to verify no new fault codes are present. Verify airbag warning light illuminates briefly during startup then extinguishes within 6 seconds. If warning light remains on or codes return, diagnose before proceeding.

Reassembly

1. Reinstall center console components in reverse order of removal
2. Ensure all electrical connectors for console accessories are properly reconnected
3. Verify all trim panels are fully seated and clips are engaged properly
4. Test all console functions including storage compartment, cup holders, and any switches or charging ports
5. Check that no rattles or loose components are present in console area

Verification

• Turn vehicle to accessory mode and observe instrument cluster airbag warning light. It should illuminate briefly (2-6 seconds) then extinguish, indicating system is operational
• Use scan tool to perform final airbag system diagnostic scan. Verify zero fault codes are present and all airbag sensors show 'ready' status
• Verify that all airbag indicator lights (if equipped on sunvisors or B-pillars) are functioning correctly
• Perform a test drive and verify no airbag warning lights illuminate during normal operation
• Document the module replacement including new module part number, programming date, and final system status for vehicle records
• If this repair was performed at a professional facility, complete all required SRS system documentation per NHTSA requirements

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