Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Lexus ES 300h BaseFACTORY OEM SERVICE PROCEDURE
DTC Index (1 Of 4)
- Acoustic Vehicle Alerting System DTCS
- Audio / Video DTCS
- ACTIVE NOISE CONTROL SYSTEM (for Gasoline Model)
- ACTIVE NOISE CONTROL SYSTEM (for HV Model)
- (2019-22) AUDIO AND VISUAL SYSTEM (for Gasoline Model)
- (2019-22) AUDIO AND VISUAL SYSTEM (for HV Model)
- (2023-24) AUDIO AND VISUAL SYSTEM (for 8 Inch Display)
- (2023-24) AUDIO AND VISUAL SYSTEM (for 12.3 Inch Display)
- Automatic Transmission / Transaxle DTCS
- Battery / Charging DTCS
- Brake Control / Dynamic Control Systems DTCS
- Cellular Communication DTCS
- Cruise Control DTCS
- DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model)
- DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model)
- (2019-21) FRONT CAMERA SYSTEM (for Gasoline Model)
- (2019-21) FRONT CAMERA SYSTEM (for HV Model)
- (2022-24) Front Camera System
- (2019-21) FRONT RADAR SENSOR SYSTEM (for Gasoline Model)
- (2019-21) FRONT RADAR SENSOR SYSTEM (for HV Model)
- (2022-24) Front Radar Sensor System
- (2019-21) LANE CONTROL SYSTEM (for Gasoline Model)
- (2019-21) LANE CONTROL SYSTEM (for HV Model)
- (2022-24) Lane Tracing Assist System
- (2019-21) ROAD SIGN ASSIST SYSTEM (for Gasoline Model)
- (2019-21) ROAD SIGN ASSIST SYSTEM (for HV Model)
- (2022-24) Road Sign Assist System
- Door / Hatch DTCS
- Door Lock DTCS
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.