1. Poor braking system performance.
2. There are air not exhaust out form the braking system
3. Brake fluid quality do not meet standard requirement.
4. Leakage in braking system
Suggest to diagnose at workshop.
1. Check if the brake fluid is insufficient.
2. Check if the water in brake fluid is exceeded standard requirement using brake fluid tester.
3. If the inspection concluded the brake fluid is failure or reached service interval, replace it.
4. Scan tool need to be used for air bleeding during brake fluid replacement.