This procedure covers the replacement of windshield wiper blades on the 2023 Rivian EDV 500 commercial electric delivery van, including removal of the cowl panel for access to the wiper arm assembly.

Warnings

Tools required

Parts

• Driver side wiper blade assembly × 1 — Use OEM specification for Rivian EDV 500
• Passenger side wiper blade assembly × 1 — Use OEM specification for Rivian EDV 500
• Cowl panel clips (if damaged) × 6 — Rivian OEM push clips

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off the vehicle completely and remove the key fob from the cabin
3. Ensure wiper arms are in the parked position (not in service mode)
4. Protect the windshield with a towel or soft cloth where wiper arms rest to prevent accidental contact with glass
5. Take photos of wiper blade orientation and cowl panel clip locations for reference during reassembly

Procedure

1. 1

   Remove windshield washer nozzle covers
   Gently pry up the washer nozzle covers from the cowl panel using a trim removal tool. These covers snap into place and may require slight rotation while pulling upward. Set covers aside in a clean location.
2. 2

   Remove cowl panel fasteners
   Using the T20 Torx driver, remove the six Torx screws securing the cowl panel along the windshield base. Start from the outer edges and work toward the center. Note that two screws are hidden beneath the washer nozzle locations. Keep all fasteners organized for reinstallation.
3. 3

   Release cowl panel clips and remove panel
   Starting at one end, carefully release the cowl panel push clips by lifting the panel upward and rearward. The panel has six to eight clips along its length. Use a trim tool to assist if needed, working methodically to avoid breaking clips. Once all clips are released, lift the cowl panel up and away from the vehicle. Disconnect the washer fluid hose connections if integrated into the panel.
4. 4

   Disconnect wiper arm electrical connectors
   Locate the electrical connectors for the heated wiper elements at the base of each wiper arm. Press the locking tab and carefully pull the connectors apart. The driver side connector is typically a 2-pin connector. Mark or photograph connector orientation to ensure correct reconnection.
5. 5

   Remove wiper arm retention nuts
   Using the 10mm socket, remove the nut securing each wiper arm to the wiper motor shaft. The nuts are located at the base of each wiper arm pivot. Hold the wiper arm steady while loosening to prevent stress on the linkage mechanism. Remove and set aside both nuts.
6. 6

   Remove wiper arms from shafts
   Rock each wiper arm gently side-to-side while pulling upward to release it from the splined shaft. The arms are press-fit onto the shafts and may require moderate force. Avoid prying against the windshield or painted surfaces. If arms are stubborn, use a specialized wiper arm puller tool or apply penetrating oil around the shaft interface and wait 10 minutes before attempting removal again.
7. 7

   Remove old wiper blades from arms
   With the wiper arms removed from the vehicle, locate the blade attachment mechanism on each arm. Most EDV 500 wiper arms use a hook-style or pin-lock connector. Depress the release tab or button on the blade assembly while sliding the blade away from the arm hook. Remove both old blades and inspect the arm hooks for damage or corrosion.
8. 8

   Install new wiper blades onto arms
   Align the new wiper blade connector with the wiper arm hook, ensuring the blade is oriented correctly (the blade should curve toward the windshield when installed). Slide the blade connector onto the hook until you hear or feel a positive click. Tug on the blade to verify it is securely locked in place. Repeat for the second wiper arm.
9. 9

   Reinstall wiper arms onto shafts
   Align each wiper arm with its corresponding splined shaft, ensuring the arms are positioned in their proper parked location (mark the windshield with tape beforehand if needed for reference). Press the arm firmly onto the shaft until it is fully seated. The driver side arm typically parks slightly higher than the passenger side on the EDV 500.
10. 10

    Install and torque wiper arm retention nuts
    Thread the 10mm retention nuts onto each wiper shaft by hand, then tighten using the 10mm socket. Tighten firmly but do not over-torque, as this can damage the splined shaft or strip the threads. Typical tightening is approximately 15-18 lb-ft, though no specific torque specification is provided in the database for this component.
11. 11

    Reconnect wiper arm electrical connectors
    Reconnect the heated element electrical connectors to each wiper arm, ensuring proper orientation and alignment of pins. Push connectors together until the locking tab clicks into place. Gently tug on each connector to verify secure connection.
12. 12

    Reinstall cowl panel
    Position the cowl panel over the wiper mechanism area, reconnecting any washer fluid hoses if applicable. Align the panel with the mounting locations and press down firmly along the length to engage all push clips. Start at the center and work outward to ensure even seating. Verify all clips are fully engaged by checking for gaps between the panel and body.
13. 13

    Install cowl panel fasteners and covers
    Install the six T20 Torx screws in their original locations, tightening in a cross-pattern from center outward to ensure even panel alignment. Do not over-tighten as this can crack the plastic panel. Reinstall the washer nozzle covers by pressing them into place until they snap securely.

Reassembly

1. Ensure all cowl panel clips are fully engaged and the panel sits flush with no gaps
2. Verify all electrical connections are secure and properly routed
3. Check that wiper arms are properly parked and aligned with windshield reference marks
4. Confirm no tools or hardware were left in the cowl area before final panel installation

Verification

• Turn on the vehicle and activate the windshield wipers through all speed settings to verify proper operation
• Test wiper park function by turning wipers off and confirming arms return to correct parked position
• Activate the windshield washer system to verify washer nozzles function and hoses are connected properly
• Check that heated wiper elements are receiving power (if vehicle is equipped with heated wiper indicator, verify it illuminates)
• Inspect the entire wiper sweep area for proper blade contact across the full windshield width
• Listen for any unusual noises, binding, or interference between wiper arms during operation
• Verify cowl panel is secure with no rattles or movement when wipers are operating

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