This procedure covers the removal and replacement of the ABS tone ring on a 2023 Rivian EDV 500 Dual Motor AWD electric delivery van.

Warnings

Tools required

Parts

• ABS tone ring × 1 — Use OEM specification
• Hub mounting bolts (if reuse not recommended) × 1 — Use OEM specification
• Brake caliper mounting bolts (if damaged) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Place wheel chocks behind wheels that will remain on ground
3. Enter Service Mode through vehicle touchscreen (Settings > Service > Service Mode)
4. Disconnect 12V battery negative terminal and wait 2 minutes for system discharge
5. Loosen wheel lug nuts while vehicle is on ground
6. Raise vehicle using floor jack at designated lift points and secure with jack stands
7. Remove wheel and tire assembly completely
8. Verify which corner has the damaged tone ring and confirm part availability

Procedure

1. 1

   Remove brake caliper assembly
   Remove the brake caliper mounting bolts and carefully lift the caliper off the rotor. Do not let the caliper hang by the brake hose. Support it using a caliper hanger or secure it to the suspension with wire. Do not depress the brake pedal with caliper removed.
2. 2

   Remove brake rotor
   Remove any rotor retaining screws if present. If the rotor is stuck due to corrosion, tap gently with a dead blow hammer around the hat section (not the friction surface). Slide the rotor off the hub assembly.
3. 3

   Inspect ABS sensor and tone ring condition
   Visually inspect the ABS wheel speed sensor mounted near the tone ring. Check for physical damage, debris buildup, or contamination. Examine the tone ring for missing teeth, cracks, or excessive corrosion. Note the tone ring orientation and position before removal.
4. 4

   Remove ABS wheel speed sensor
   Disconnect the ABS wheel speed sensor electrical connector. Remove the sensor mounting bolt and carefully extract the sensor from its bore. Do not pry against the sensor tip. If seized, apply penetrating oil and allow to soak, then retry. Store sensor in clean location away from metal debris.
5. 5

   Remove hub assembly mounting bolts
   Locate the hub bearing assembly mounting bolts accessed from the rear of the knuckle. On the EDV 500, these are typically Torx or hex bolts. Remove all mounting bolts while supporting the hub assembly. Note the bolt lengths and positions if they vary.
6. 6

   Remove hub assembly with tone ring
   Carefully pull the hub assembly with the attached tone ring away from the knuckle. If the assembly is stuck, tap gently on the back side of the hub with a dead blow hammer. Do not strike the wheel studs or tone ring. The CV axle will remain in the knuckle or may slide out with the hub depending on design.
7. 7

   Remove damaged tone ring from hub
   The tone ring on the EDV 500 is typically press-fit or fastened to the hub. If press-fit, use a seal puller or pry bar to carefully separate the tone ring from the hub, working evenly around the circumference. If fastened with screws or clips, remove fasteners first. Avoid damaging the hub mounting surface.
8. 8

   Clean hub mounting surfaces
   Thoroughly clean the hub surface where the tone ring mounts using a wire brush and brake cleaner. Remove all rust, debris, and old adhesive. Clean the ABS sensor bore in the knuckle with brake cleaner and compressed air. Inspect hub for damage or excessive wear.
9. 9

   Install new tone ring
   Position the new tone ring onto the hub in the correct orientation (teeth facing sensor). If press-fit, use a suitable driver or press to seat the tone ring evenly and fully onto the hub. If using fasteners, apply medium-strength thread locker and tighten fasteners in a star pattern. Verify the tone ring is fully seated with no gaps and runs true to the hub.
10. 10

    Reinstall hub assembly
    Guide the hub assembly with new tone ring back into position on the knuckle, ensuring proper alignment with the CV axle splines. Install all hub mounting bolts and tighten in a star pattern. Since torque specifications are not available in the database, follow Rivian service manual torque values exactly.
11. 11

    Reinstall ABS wheel speed sensor
    Clean the ABS sensor tip with brake cleaner and ensure it is free of metal particles. Insert the sensor into its bore, ensuring it is fully seated. Install the sensor mounting bolt and tighten securely. Reconnect the electrical connector, ensuring it clicks into place. Verify the sensor-to-tone-ring air gap is within specification (typically 0.5-1.5mm).
12. 12

    Reinstall brake rotor and caliper
    Slide the brake rotor back onto the hub and install any retaining screws. Position the brake caliper over the rotor and install the caliper mounting bolts. Tighten to proper specification per service manual. Ensure brake pads are properly seated and caliper slides move freely.

Reassembly

1. Install wheel and tire assembly, starting lug nuts by hand
2. Lower vehicle until tire contacts ground but does not bear full weight
3. Torque lug nuts to specification in star pattern per Rivian service manual
4. Fully lower vehicle and remove jack stands
5. Reconnect 12V battery negative terminal
6. Exit Service Mode through vehicle touchscreen
7. Pump brake pedal several times to restore brake pressure before moving vehicle

Verification

• Clear any stored ABS fault codes using diagnostic scanner
• Perform a test drive in a safe area at low speed (under 10 mph) to verify ABS sensor operation
• Check for ABS warning lights on instrument cluster - they should extinguish after brief driving
• Use diagnostic scanner to verify all four wheel speed sensors are reading and providing signal
• Perform ABS self-test function if available in Rivian diagnostic system
• Verify no abnormal noises from the wheel bearing or tone ring area during rotation
• Recheck wheel lug nut torque after 50-100 miles of driving

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