my Toyota Highlander Fourth Generation (2020-present) has a soft brake pedal what can I do

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Wear safety gloves and goggles for protection.

2. Inspect and Top Off Brake Fluid

• Sub-steps:
  1. Locate the brake fluid reservoir under the hood.
  2. Remove the cap and check the fluid level; it should be between the "MIN" and "MAX" marks.
  3. If low, top off with the recommended DOT brake fluid as specified in the owner's manual.

3. Check for Leaks

• Sub-steps:
  1. Visually inspect all brake lines, hoses, and connections for signs of fluid leakage.
  2. Check the calipers and wheel cylinders for wetness or residue.
  3. If any leaks are found, replace damaged components.

4. Bleed the Brake System

• Sub-steps:
  1. Start with the wheel furthest from the master cylinder (usually the passenger rear).
  2. Use a brake bleeder kit or a clear tube into a container to catch fluid.
  3. Have an assistant pump the brake pedal several times, then hold it down.
  4. Open the bleeder valve on the brake caliper to allow air and old fluid to escape, then close it before the pedal is released.
  5. Repeat this process until no air bubbles are visible in the fluid.
  6. Move to the next wheel (passenger front, driver rear, driver front) and repeat.

5. Inspect Brake Components

• Sub-steps:
  1. Remove the wheel to access the brake assembly.
  2. Inspect brake pads for sufficient thickness; replace if worn down.
  3. Check rotors for scoring or warping; replace if necessary.

6. Reassemble and Test

• Sub-steps:
  1. Reinstall the wheel and lower the vehicle.
  2. Start the engine and pump the brake pedal to ensure proper feel.
  3. Take the vehicle for a test drive to ensure the brakes are functioning correctly.

Tools Required:

• Brake bleeder kit
• Socket set
• Torque wrench
• Screwdrivers
• Safety gloves and goggles

Parts Required:

• Brake fluid (DOT 3 or DOT 4)
• Brake pads (if worn)
• Brake rotors (if necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Always wear safety gloves and goggles when working on the braking system.
• Ensure the vehicle is secured on jack stands before working underneath.
• Allow engine components to cool before inspection if the vehicle has been running.