what causes my Toyota Highlander Third Generation (2014-2019) to vibrate at high speeds?

Solution

1. Preparation

• Gather tools and parts necessary for the repair.
• Ensure the vehicle is parked on a level surface and engage the parking brake.

2. Tire Inspection and Balancing

1. Remove the wheels: Use a jack to lift the vehicle and a socket set to remove lug nuts.
2. Inspect tires: Check for bulges, blisters, or uneven wear. Replace any damaged tires.
3. Balance tires: Mount the tires on a wheel balancer and add weights as necessary to achieve balance.

3. Wheel Alignment

1. Set up alignment equipment: Position the vehicle on an alignment rack and attach alignment sensors.
2. Adjust alignment: Compare the current alignment settings to manufacturer specifications and make adjustments to camber, caster, and toe as necessary.

4. Suspension Component Inspection

1. Visually inspect suspension parts: Look for any signs of wear or damage on control arms, struts, and bushings.
2. Replace worn parts: If any components are found to be defective, replace them with OEM or quality aftermarket parts.

5. Final Checks

1. Reinstall wheels: Place the wheels back on the vehicle and torque lug nuts to the manufacturer’s specified torque value.
2. Lower the vehicle: Carefully lower the vehicle back to the ground.