electrical

Washer Reservoir

for 2024 Rivian EDV 500 Dual Motor AWD (EDV) · FWD

Difficulty

Moderate

Time

2.0 h

Tools

Steps

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This procedure covers the removal and replacement of the windshield washer reservoir on a 2024 Rivian EDV 500 commercial delivery van.

Warnings

⚠The 12V battery must be disconnected to prevent inadvertent washer pump operation during service.

ℹ️Washer fluid may be present in the reservoir and lines. Have drain pan ready to capture fluid.

⚠On commercial delivery vehicles, verify cargo area is clear before accessing front compartment components.

Tools required

10mm socket and ratchetEssential

T25 Torx driverEssential

Panel removal tool setEssential

Drain pan (1 gallon capacity)Essential

Pliers (needle-nose)

Work light

Funnel

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Parts

Windshield washer reservoir × 1 — Use OEM specification
Washer reservoir mounting grommets × 2 — Use OEM specification
Push-pin fasteners (wheel well liner) × 6 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Fluids

Windshield Washer Fluid — 3.5 qt

Preparation

Park vehicle on level surface and engage parking brake
Open the front hood/frunk to access 12V battery location
Disconnect the negative terminal of the 12V auxiliary battery
Allow vehicle to sit for 2 minutes to ensure system power-down
Position drain pan under left front wheel well area

Procedure

1
Remove left front wheel well liner
Turn the steering wheel fully to the right to access the left front wheel well. Remove the push-pin fasteners securing the forward portion of the wheel well liner using the panel removal tool. Fold the liner back to expose the washer reservoir mounting area. You may need to remove 6-8 fasteners depending on access needed.
2
Drain washer reservoir
Locate the washer fluid reservoir behind the wheel well liner on the left front corner of the vehicle. Position the drain pan directly below the reservoir. Disconnect the washer pump electrical connector by pressing the release tab and pulling straight out. Disconnect the outlet hose from the pump by squeezing the quick-connect collar and pulling the hose free. Allow fluid to drain completely into the pan.
3
Disconnect washer pump wiring
Trace the washer pump wiring harness to the connector near the reservoir mounting bracket. Press the connector lock tab and separate the connector. If equipped with a low-fluid level sensor, disconnect that electrical connector as well using the same method.
4
Disconnect filler neck hose
Locate the filler neck hose connecting the reservoir to the filler cap assembly in the front compartment. Use pliers to compress the hose clamp and slide it down the hose away from the reservoir connection point. Twist and pull the hose free from the reservoir inlet neck. Some residual fluid may drain from this connection.
5
Remove reservoir mounting fasteners
Locate the two T25 Torx screws securing the reservoir mounting bracket to the vehicle frame. Remove both screws completely and retain for reinstallation. If the reservoir uses push-in grommets instead of or in addition to screws, note their positions for reassembly.
6
Remove washer reservoir assembly
Carefully maneuver the washer reservoir out through the wheel well opening. The reservoir must be tilted and rotated to clear the frame rails and other components. Take care not to damage the pump or sensor connections still attached to the reservoir. Once clear, place the assembly on a clean work surface.
7
Transfer components to new reservoir
If replacing the reservoir, remove the washer pump from the old reservoir by rotating it counterclockwise approximately 1/8 turn and pulling it out of the reservoir grommet. Remove the low-fluid sensor (if equipped) using the same method. Inspect the sealing grommets for damage and replace if necessary. Install the pump and sensor into the new reservoir by aligning the tabs and pressing firmly, then rotating clockwise to lock in place.
8
Install reservoir assembly
Guide the reservoir assembly into position through the wheel well opening, reversing the removal path. Ensure all mounting tabs and grommets align with their corresponding frame mounting points. The reservoir must sit flush against its mounting surface without forcing.
9
Secure reservoir mounting
Install the two T25 Torx mounting screws and tighten securely by hand plus 1/4 turn. Do not overtighten as this may crack the reservoir mounting tabs. Ensure the reservoir does not move when pulled gently.
10
Reconnect filler neck hose
Push the filler neck hose firmly onto the reservoir inlet neck until it seats completely. Slide the hose clamp into position over the connection point (approximately 1/2 inch from the end of the hose) and release it to secure the connection.
11
Reconnect electrical connections
Reconnect the washer pump electrical connector, ensuring it clicks into place. Reconnect the low-fluid level sensor connector if equipped. Verify both connections are fully seated by gently pulling on them.
12
Reconnect pump outlet hose
Push the washer outlet hose onto the pump outlet fitting until the quick-connect collar clicks into place. Tug gently on the hose to verify it is locked. Route the hose to ensure it does not contact any sharp edges or heat sources.
13
Reinstall wheel well liner
Position the wheel well liner back into place and secure with the push-pin fasteners. Ensure all fasteners are fully seated and the liner is properly aligned with no gaps or loose sections.
14
Fill washer reservoir and test
Reconnect the negative terminal of the 12V auxiliary battery. Fill the washer reservoir with 3.5 quarts of windshield washer fluid through the filler neck. Power on the vehicle accessory mode and activate the windshield washer system. Verify fluid sprays from both front nozzles and check all connections for leaks. Operate the system for 10-15 seconds to purge air from the lines.

Reassembly

Ensure all electrical connections are fully seated and locked
Verify all hose connections are secure and clamps are properly positioned
Confirm wheel well liner is properly secured with all fasteners
Check that no tools or parts have been left in the work area

Verification

With vehicle in accessory mode, activate the windshield washer system and verify proper spray pattern from both nozzles
Inspect all connections at the reservoir for fluid leaks during operation
Verify the low-fluid warning does not appear on the instrument cluster when reservoir is full
Check that the washer pump operates quietly without unusual noise
Confirm wheel well liner is secure and does not rub against tire during steering