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 UX 250h BaseFACTORY OEM SERVICE PROCEDURE
Component Locations
- Acoustic Vehicle Alerting System
- Adaptive Variable Suspension System
- Air Conditioning System
- Airbag System
- ASC System
- Audio / Video System
- Back Door Closer System
- Blind Spot Monitor System
- Can Communication System
- Charging System (M20A-FXS)
- Climate Control Seat System
- Clock System
- Cooling Fan System (M20A-FXS)
- Dynamic Radar Cruise Control System
- Electric Parking Brake System
- Electronically Controlled Brake System
- Emission Control System (M20A-FXS)
- Engine Control System (SFI) (M20A-FXS)
- Front Camera System
- Front Power Seat Control System
- Front Radar Sensor System
- Fuel Lid Opener System
- Fuel System (M20A-FXS)
- Garage Door Opener
- HEADUP Display
- Heated Steering Wheel System
- Horn
- Hybrid Control System
- Ignition System (M20A-FXS)
- Lane Control System
- LEXUS ENFORM System
- Lighting System (Exterior)
- Lighting System (Interior)
- Lin Communication System
- Meter / Gauge / Display
- Motor Generator Control System
- Navigation System
- Occupant Classification System
- Parking Assist Monitor System
- Parking Support Alert System
- Parking Support Brake System
- Power Back Door System
- Power Door Lock Control System
- Power Mirror Control System
- Power Steering System
- Power Tilt & Telescopic Steering Column
- Power Window Control System
- Pre-Collision System
- Rear Motor Generator Control System
- Rear Seat Reminder System
- Road Sign Assist System
- Safety Connect System
- Seat Belt Tension Reducer System
- Seat Belt Warning System
- Seat Heater System
- Sliding Roof
- Smart Access System W/ Push-Button Start (Entry Function)
- Smart Access System W/ Push-Button Start (Start Function)
- Telematics System
- Theft Deterrent System
- Tire Pressure Warning System
- Vehicle Proximity Notification System
- Window Defogger System
- Windshield Deicer System
- Wiper System / Washer System
- Wireless Charging System (Interior)
- Wireless Door Lock Control System
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.
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