This procedure covers removal and replacement of the front lower lateral arm (control arm) on a 2019-2024 Toyota RAV4 with 2.5L I4 engine and FWD configuration.

Warnings

Tools required

Parts

• Front lower lateral arm (control arm) × 1 — Use OEM specification
• Ball joint castle nut × 1 — Replace if damaged
• Cotter pin × 1 — Always replace

Preparation

1. Park vehicle on level ground and apply parking brake
2. Place wheel chocks behind rear wheels
3. Loosen front wheel lug nuts while vehicle is on ground (do not remove)
4. Raise front of vehicle with floor jack at designated jacking point
5. Support vehicle securely on jack stands placed at frame rails
6. Remove front wheel on side being serviced
7. Spray penetrating oil on ball joint nut, control arm bolts, and threads if corrosion is present

Procedure

1. 1

   Access lateral arm components
   Visually inspect the lateral arm location. The lateral arm connects the front knuckle to the subframe with two mounting bolts at the subframe end and a ball joint at the knuckle end. Identify all mounting points before proceeding.
2. 2

   Remove ball joint cotter pin
   Locate the ball joint castle nut where the lateral arm connects to the steering knuckle. Straighten and remove the cotter pin using pliers or a cotter pin removal tool. Discard the cotter pin as it must be replaced.
3. 3

   Loosen ball joint nut
   Using a 19mm socket, loosen the ball joint castle nut but do not remove it completely. Leave the nut threaded on 2-3 turns to protect the threads and prevent the knuckle from dropping when the joint separates.
   ⚠Do not fully remove the nut before separating the joint to prevent sudden separation and component damage.
4. 4

   Separate ball joint from knuckle
   Install ball joint separator tool between the knuckle and lateral arm ball joint. Apply force according to tool instructions to separate the taper. You will hear or feel a pop when the joint releases. Once separated, remove the castle nut completely and lower the lateral arm away from the knuckle.
   ⚠Ensure ball joint separator is properly positioned and stable before applying force to prevent tool slippage.
5. 5

   Remove rear lateral arm mounting bolt
   Locate the rear mounting bolt securing the lateral arm to the subframe. This is the bolt closest to the rear of the vehicle. Using a 19mm socket and wrench, remove the bolt completely. Note the orientation of any washers or spacers for reinstallation.
6. 6

   Remove front lateral arm mounting bolt
   Locate the front mounting bolt securing the lateral arm to the subframe. Using a 19mm socket and wrench, remove this bolt completely. The lateral arm is now free and can be removed from the vehicle. Note the orientation and condition of bushings.
7. 7

   Inspect mounting points and prepare new arm
   Clean the subframe mounting points with a wire brush. Inspect the ball joint mounting surface on the knuckle for damage or wear. Check that the new lateral arm ball joint boot is intact and the bushings are properly installed. Compare new arm to old arm to verify correct part.
8. 8

   Install new lateral arm to subframe
   Position the new lateral arm into the subframe mounting brackets. Insert both front and rear mounting bolts through the arm and subframe. Thread bolts by hand first to ensure proper alignment. Do NOT torque these bolts yet - they must be torqued at ride height with vehicle weight on suspension.
   ⚠Control arm bolts must only be snugged at this stage. Final torque is applied after vehicle is lowered to prevent bushing wind-up and premature failure.
9. 9

   Connect ball joint to knuckle
   Lift the lateral arm ball joint stud into the knuckle mounting hole. You may need to use a pry bar to align the holes. Install the new castle nut and tighten to specification using a torque wrench. Ensure the nut is torqued properly before installing cotter pin.
   Torque spec

   Ball Joint Nut88 Nm (65 lb-ft)
10. 10

    Install new cotter pin
    Install a new cotter pin through the castle nut and ball joint stud. If the castle nut slots do not align with the stud hole, tighten the nut further (never loosen) until alignment is achieved. Bend the cotter pin ends to secure.
11. 11

    Reinstall wheel and lower vehicle
    Reinstall the wheel and hand-tighten the lug nuts in a star pattern. Lower the vehicle from jack stands using the floor jack until the tires just touch the ground but suspension is not fully loaded. Remove jack stands completely.
12. 12

    Torque control arm bolts at ride height
    With the vehicle lowered and weight on the suspension (but not fully on ground for access), torque both the front and rear lateral arm mounting bolts to specification. This prevents bushing wind-up. Use a 19mm socket and torque wrench.
    ℹ️Torquing control arm bolts with suspension unloaded will cause premature bushing failure. Ensure weight is on wheels.
    Torque spec

    Control Arm Bolts165 Nm (122 lb-ft)
13. 13

    Final wheel installation
    Fully lower the vehicle to the ground. Torque the wheel lug nuts to specification in a star pattern using a torque wrench.
    Torque spec

    Wheel Lug Nuts136 Nm (100 lb-ft)

Reassembly

1. All fasteners have been installed and torqued during the procedure steps
2. Ensure all tools and parts have been removed from under vehicle before test driving
3. Double-check that wheel lug nuts are torqued to specification

Verification

• Visually inspect that the lateral arm is properly seated in subframe brackets and ball joint is secure in knuckle
• Verify cotter pin is properly installed and bent to prevent removal
• Test drive vehicle at low speed in a safe area and listen for any clunking or unusual noises from the front suspension
• Check for proper steering feel and verify vehicle tracks straight
• Schedule a professional alignment as replacing the lateral arm will affect toe and camber settings

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