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.
2018 Lexus IS 350 Base, RWDFACTORY OEM SERVICE PROCEDURE
Electrical Component Locations
Select a section or procedure below to view factory instructions:
Adaptive Variable Suspension SystemAirbag SystemASC SystemAudio / Video SystemAutomatic Transmission System (A760H)Automatic Transmission System (Aa81E, For 2GR-FKS)Blind Spot Monitor SystemCan Communication SystemCharging System (2GR-FKS)Climate Control SeatDynamic Radar Cruise Control SystemElectric Parking Brake SystemEmission Control System (2GR-FKS)Engine Control System (2GR-FKS)Engine Cooling Fan System (2GR-FKS)Engine Starting System (2GR-FKS)Four Wheel Drive Control SystemFront Camera SystemFront Power Seat Control System (W/ Memory)Front Power Seat Control System (W/O Memory)Front Radar Sensor SystemFuel Lid Opener SystemFuel System (2GR-FKS)Garage Door OpenerHeated Steering Wheel SystemHeating / Air Conditioning SystemHorn SystemIgnition System (2GR-FKS)Immobiliser SystemLane Tracing Assist SystemLEXUS ENFORM SystemLighting System (Ext)Lighting System (Int)Lin Communication SystemLuggage Compartment Door Opener SystemMeter / Gauge SystemNavigation SystemOccupant Classification SystemPanoramic View Monitor SystemParking Assist Monitor SystemParking Support Alert SystemParking Support Brake SystemPower Door Lock Control SystemPower Mirror Control System (W/ Memory)Power Mirror Control System (W/O Memory)Power Steering SystemPower Tilt & Power Telescopic Steering Column SystemPower Window Control SystemPre-Collision SystemRear Seat Reminder SystemRear Sunshade SystemRoad Sign Assist SystemSafety Connect SystemSeat Belt Tension Reducer SystemSeat Belt Warning SystemSeat Heater SystemSliding Roof SystemSmart Access System (For Entry)Smart Access System (For Start)Telematics SystemTheft Deterrent SystemTire Pressure Warning SystemVehicle Stability Control SystemWindow Defogger SystemWindshield Deicer SystemWiper System / Washer 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.