Problem Symptoms Table [06/2018 - ]
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected Area | Link |
|---|---|---|
| Low or spongy pedal | Fluid leaks in brake system | - |
| Air in brake system | Refer to BLEEDING [06/2018 - ] | |
| Front brake piston seals (worn or damaged) | Refer to DISASSEMBLY [06/2018 - ] | |
| Rear brake piston seals (worn or damaged) | Refer to DISASSEMBLY [06/2018 - ] | |
| Brake booster with master cylinder assembly (faulty) | Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ] | |
| Parking brake actuator O-ring | Refer to REMOVAL [06/2018 - ] | |
| Brake drag | Brake pedal free play (insufficient) | Refer to ADJUSTMENT [06/2018 - 08/2021] , or refer to ADJUSTMENT [08/2021 - ] |
| Parking brake actuator | Refer to REMOVAL [06/2018 - ] | |
| Front brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake piston (stuck) | Refer to DISASSEMBLY [06/2018 - ] | |
| Rear brake piston (stuck) | Refer to DISASSEMBLY [06/2018 - ] | |
| Front brake piston (seized) | Refer to DISASSEMBLY [06/2018 - ] | |
| Rear brake piston (seized) | Refer to DISASSEMBLY [06/2018 - ] | |
| Brake booster with master cylinder assembly (faulty) | Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ] | |
| Brake pull | Front brake piston (stuck) | Refer to DISASSEMBLY [06/2018 - ] |
| Rear brake piston (stuck) | Refer to DISASSEMBLY [06/2018 - ] | |
| Front brake pad (oily) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (oily) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake piston (seized) | Refer to DISASSEMBLY [06/2018 - ] | |
| Rear brake piston (seized) | Refer to DISASSEMBLY [06/2018 - ] | |
| Front disc (scored) | Refer to INSPECTION [06/2018 - ] | |
| Rear disc (scored) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Hard pedal but brake inefficient | Front brake pad (worn) | Refer to INSPECTION [06/2018 - ] |
| Rear brake pad (worn) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake pad (oily) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (oily) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake pad (glazed) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (glazed) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake piston (stuck) | Refer to DISASSEMBLY [06/2018 - ] | |
| Rear brake piston (stuck) | Refer to DISASSEMBLY [06/2018 - ] | |
| Front brake piston (seized) | Refer to DISASSEMBLY [06/2018 - ] | |
| Rear brake piston (seized) | Refer to DISASSEMBLY [06/2018 - ] | |
| Front disc (scored) | Refer to INSPECTION [06/2018 - ] | |
| Rear disc (scored) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Noise from brakes | Front brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - ] |
| Rear brake pad (cracked or distorted) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake cylinder mounting bolt (loose) | Refer to INSTALLATION [06/2018 - ] | |
| Rear brake cylinder mounting bolt (loose) | Refer to INSTALLATION [06/2018 - ] | |
| Front disc (scored) | Refer to INSPECTION [06/2018 - ] | |
| Rear disc (scored) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake pad support plate (loose) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad support plate (loose) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front disc brake cylinder slide pin (worn) | Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ] | |
| Rear disc brake cylinder slide pin (worn) | Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ] | |
| Front brake pad (dirty) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (dirty) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake pad (glazed) | Refer to INSPECTION [06/2018 - ] | |
| Rear brake pad (glazed) | Refer to INSPECTION [06/2018 - 08/2020] , or refer to INSPECTION [08/2020 - ] | |
| Front brake anti-squeal shim (damaged) | Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ] | |
| Rear brake anti-squeal shim (damaged) | Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ] |