my Toyota Corolla E210 (2019-2024) brake pedal feels soft, what can I do?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is on a flat surface and engage the parking brake.
• Wear safety gloves and goggles for protection.

2. Check and Replace Brake Fluid

• Sub-steps:
  1. Open the hood and locate the brake fluid reservoir.
  2. Remove the cap and check the fluid level; if low, top off with the manufacturer-recommended brake fluid (DOT 3 or DOT 4).
  3. If the fluid appears discolored or contaminated, proceed to replace it.
  4. Use a turkey baster or suction tool to remove old brake fluid from the reservoir.
  5. Refill with fresh brake fluid to the appropriate level.

3. Bleed the Brake System

• Sub-steps:
  1. Start at the wheel farthest from the master cylinder (typically the passenger rear).
  2. Attach a clear hose to the bleeder screw on the brake caliper and place the other end in a container.
  3. Have an assistant pump the brake pedal several times and hold it down.
  4. Open the bleeder screw to release air and old fluid, then close it before the pedal is released. Repeat until no bubbles appear.
  5. Move to the next wheel in the order: driver rear, passenger front, and finally driver front.

4. Inspect and Replace Brake Components (if necessary)

• Sub-steps:
  1. Remove the wheel to access the brake components.
  2. Inspect brake pads for wear; replace if less than 3mm thick.
  3. Inspect rotors for grooves or scoring; replace if damaged.
  4. If necessary, replace the brake pads and rotors according to manufacturer specifications.
  5. Reassemble the brake assembly and wheel.