This procedure covers the replacement of front wiper blades on the 2022 Rivian EDV 500 commercial delivery van, including removal of cowl panels for access to wiper arm assemblies.

Warnings

Tools required

Parts

• Driver side wiper blade assembly × 1 — Rivian OEM 24-inch blade
• Passenger side wiper blade assembly × 1 — Rivian OEM 24-inch blade
• Cowl panel clips × 4 — Replace any damaged during removal

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off vehicle completely using power button
3. Move wiper arms to service position by turning vehicle to accessory mode, activating wipers, then turning off when wipers are mid-stroke (if equipped with service mode)
4. If service mode is not accessible, wiper arms can be manually lifted from windshield in parked position
5. Apply protective fender covers to prevent scratches during cowl panel removal
6. Photograph cowl panel and clip locations for reinstallation reference

Procedure

1. 1

   Remove windshield washer nozzles
   Carefully disconnect the washer fluid supply lines from the nozzles by pressing the quick-release collar and pulling the line free. Use a trim tool to gently pry the washer nozzles from the cowl panel. Set aside with lines attached to prevent fluid spillage.
2. 2

   Remove cowl panel fasteners
   Using a T25 Torx driver, remove the cowl panel retaining screws. On the EDV 500, there are typically 6-8 screws along the rear edge of the cowl panel. Remove the rubber weather seal from the cowl area by pulling upward gently to expose hidden fasteners.
3. 3

   Release cowl panel clips
   Using trim panel removal tools, carefully release the cowl panel push clips along the front edge. Work from one end to the other, applying even pressure to avoid breaking clips. The EDV 500 uses approximately 8-10 clips across the cowl width. Mark any broken clips for replacement.
4. 4

   Remove cowl panel assembly
   Lift the cowl panel assembly upward and toward the rear of the vehicle. Be aware of any remaining electrical connections for ambient temperature sensors or other components integrated into the cowl. Disconnect any connectors before fully removing the panel. Set cowl panel in a safe location to prevent damage.
5. 5

   Access wiper arm mounting nuts
   With the cowl removed, locate the wiper arm mounting nuts at the base of each wiper arm. Remove the protective caps covering the mounting nuts by prying gently with a flathead screwdriver. Note the exact position and orientation of each wiper arm before removal.
6. 6

   Remove driver side wiper arm
   Using a 9mm socket or wrench, loosen the driver side wiper arm mounting nut several turns but do not fully remove. Gently rock the wiper arm back and forth while pulling upward to break the taper fit on the splined shaft. Once loose, remove the nut completely and lift the wiper arm assembly off the shaft. Protect the windshield with a towel if the spring-loaded arm releases suddenly.
7. 7

   Remove passenger side wiper arm
   Repeat the removal process for the passenger side wiper arm. Loosen the 9mm mounting nut, rock the arm to break the taper fit, remove the nut, and lift the arm assembly from the shaft. Keep both wiper arms and mounting hardware organized for comparison with new blades.
8. 8

   Remove wiper blades from arms
   If reusing wiper arms, remove the old wiper blade refills from the arm assemblies. Press the release tab on the blade connector and slide the blade away from the arm hook. Note the orientation and attachment method, as the EDV 500 may use proprietary Rivian connectors.
9. 9

   Install new wiper blades
   Attach the new wiper blades to the wiper arms (if reusing arms) or prepare complete new wiper arm assemblies. Ensure the blade locks securely into the arm connector with an audible click. Verify the blade sits properly in the arm channel and moves freely without binding.
10. 10

    Install wiper arms to shafts
    Align the driver side wiper arm to the splined shaft in the correct position (typically 3-4 inches above the bottom edge of the windshield when parked). Press the arm firmly onto the shaft ensuring full engagement with the splines. Install the mounting nut and tighten securely. Repeat for the passenger side wiper arm, ensuring both arms are at the same height and parallel when in the parked position.
11. 11

    Reinstall cowl panel
    Position the cowl panel assembly back onto the vehicle, reconnecting any electrical connectors for sensors. Align the panel with the mounting locations and press firmly to engage the push clips. Install all T25 Torx screws and tighten securely. Replace any broken clips identified during removal.
12. 12

    Reinstall washer nozzles and seal
    Press the windshield washer nozzles back into their cowl panel locations until fully seated. Reconnect the washer fluid supply lines by pushing the lines into the quick-connect fittings until they click. Reinstall the rubber weather seal along the cowl panel edge, ensuring proper seating.

Reassembly

1. Verify all cowl panel fasteners are tight and all clips are fully engaged
2. Ensure washer nozzles are properly aimed and secured
3. Confirm wiper arms are at correct park position and not contacting hood or cowl when at rest
4. Check that no tools or parts were left in the cowl or HVAC intake area

Verification

• Turn vehicle to accessory mode and test wiper operation at all speeds (low, high, intermittent)
• Verify wipers return to proper park position when turned off
• Test windshield washer spray function to confirm nozzles are connected and aimed correctly
• Inspect wiper blade contact with windshield across full sweep for even pressure and coverage
• Check for any rattles or unusual noises from cowl area during wiper operation
• Verify no interference between wiper blades during operation
• Inspect cowl panel fitment and ensure all gaps are even with no loose sections

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