Tire Balance

This procedure covers the proper balancing of all four tires on a 2025 Rivian EDV 500 electric delivery vehicle to eliminate vibration and ensure even tire wear.

Warnings

Tools required

Parts

• Clip-on wheel weights (assorted) × 1 — Use weights compatible with Rivian EDV wheel design
• Adhesive wheel weights (assorted) × 1 — Use weights compatible with Rivian EDV wheel design

Preparation

1. Park vehicle on level, solid surface and engage parking brake
2. Place vehicle in Park mode and ensure high voltage system is in service mode if accessing undercarriage
3. Chock the wheels that will remain on the ground
4. Note the current tire positions and rotation history if performing rotation during this service
5. Inspect all tires for visible damage, uneven wear patterns, or embedded objects before balancing
6. Record current tire pressures before removal

Procedure

1. 1

   Raise vehicle and remove first wheel
   Position floor jack at designated front lift point. Raise vehicle until tire is just off ground. Install jack stand at proper support point. Remove lug nuts in star pattern and remove wheel assembly. Mark wheel position (e.g., LF for left front) with chalk for reinstallation reference.
2. 2

   Inspect and clean wheel
   Inspect wheel for damage including cracks, bends, or corrosion. Check the wheel's inner and outer rim flanges for debris, old wheel weights, or buildup. Use wire brush to clean both rim flanges thoroughly where weights will be applied. Remove any existing wheel weights.
3. 3

   Mount tire on balancing machine
   Select the appropriate cone or adapter for the Rivian EDV wheel center bore. Mount the wheel assembly securely on the balancing machine spindle. Ensure the wheel is seated flush against the mounting surface. Input wheel dimensions (diameter and width) into the balancing machine according to manufacturer specifications for the EDV 500.
4. 4

   Perform initial balance measurement
   Lower the balancing machine hood or guard. Initiate the spin cycle according to machine instructions. Allow the machine to complete its measurement cycle and display imbalance values for both inner and outer planes. Note the amount and location of imbalance shown on the machine display.
5. 5

   Apply corrective wheel weights
   Based on machine readings, select appropriate weight sizes for both inner and outer rim positions. For the outer rim, use clip-on weights if wheel design permits, or adhesive weights for aluminum or coated wheels. Install weights at the positions indicated by the balancing machine (typically marked at 12 o'clock position when stopped). Ensure clip-on weights are fully seated and adhesive weights are pressed firmly onto clean surface.
6. 6

   Verify balance and fine-tune
   Perform a verification spin on the balancing machine. Check that residual imbalance is within acceptable limits (typically 0.25 oz or less per plane for optimal results). If imbalance remains excessive, adjust weight placement or add/remove weight as needed. Repeat verification spin until balance is within specification.
7. 7

   Reinstall balanced wheel
   Remove wheel from balancing machine. Reinstall wheel onto vehicle hub in the original position (unless performing rotation). Thread lug nuts by hand to prevent cross-threading. Tighten lug nuts in star pattern with torque wrench to manufacturer specification (refer to owner's manual for proper torque value as it is not available in database).
8. 8

   Repeat for remaining wheels
   Lower vehicle and reposition jack to next wheel location. Repeat steps 1 through 7 for each remaining wheel. Maintain organization by keeping track of which wheels have been balanced and their positions on the vehicle.
9. 9

   Adjust tire pressures
   With all wheels reinstalled, adjust tire pressure to Rivian EDV 500 specifications as listed on the driver's door jamb placard. Check pressure when tires are cold for accurate reading. Ensure all four tires are inflated to the same pressure unless vehicle manufacturer specifies different front and rear pressures.
10. 10

    Perform final torque check
    After vehicle is lowered completely to the ground with full weight on wheels, perform a final torque check on all lug nuts in star pattern. This ensures proper seating and torque under load conditions.

Reassembly

1. Verify all lug nuts are torqued to specification and caps or covers are reinstalled if applicable
2. Ensure all tools and equipment are removed from under and around the vehicle
3. Remove wheel chocks and verify parking brake releases properly

Verification

• Test drive vehicle at various speeds (25-65 mph) to verify vibration has been eliminated
• Check for any unusual noises or steering wheel vibration during test drive
• Verify steering wheel returns to center properly and vehicle tracks straight
• Re-check lug nut torque after 50-100 miles of driving as a best practice
• Confirm tire pressure monitoring system (TPMS) shows correct pressures for all four tires

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