2021 Lexus NX 300h BaseFACTORY OEM SERVICE PROCEDURE

Electrical Component Locations

Select a section or procedure below to view factory instructions:

Accessory Socket SystemAcoustic Vehicle Alerting SystemActive Sound Control SystemAdaptive Front Lighting SystemAdaptive Variable Suspension SystemAir Conditioning SystemAudio / Video System (W/O 8 Speakers)Audio / Video System (W/Speakers)Audio / Video SystemAutomatic Headlight Beam Level Control SystemAutomatic High Beam SystemBack Door Closer SystemBlind Spot Monitor SystemCan Communication SystemClimate Control Seat SystemClockCruise Control SystemDynamic Radar Cruise Control SystemElectric Parking Brake SystemElectronically Controlled Brake SystemEmission Control SystemEngine Control SystemEngine Cooling Fan SystemForward Recognition Camera SystemFront Camera SystemFront Power Seat Control System (W/Memory)Front Power Seat Control System (W/O Memory)Front Radar Sensor SystemFuel Lid OpenerFuel SystemGarage Door OpenerHEADUP Display SystemHeated Steering WheelHorn SystemHybrid Battery SystemHybrid Control SystemIgnition SystemImmobiliser SystemIntelligent Clearance Sonar SystemIntuitive Parking Assist SystemIntuitive Parking Assist System (W/Intelligent Clearance Sonar System)Intuitive Parking Assist System (W/O Intelligent Clearance Sonar System)Lane Departure Alert SystemLane Tracing Assist SystemLEXUS ENFORM SystemLighting System (For Single Beam Headlight)Lighting System (For Triple Beam Headlight)Lighting System (Interior)Lin Communication SystemMeter / Gauge / DisplayNavigation SystemOccupant Classification SystemPanoramic View Monitor SystemParking Assist Monitor SystemPower Back Door SystemPower Door Lock Control SystemPower Mirror Control System (W/Memory)Power Mirror Control System (W/O Memory)Power Steering SystemPower Steering System (W/Manual Tilt And Manual Telescopic Steering Column)Power Steering System (W/Power Tilt And Power Telescopic Steering Column)Power Tilt & Power Telescopic Steering ColumnPower Window Control SystemPre-Collision SystemRear Power Seat Control SystemRoad Sign Assist SystemSafety Connect SystemSeat Belt Tension ReducerSeat Belt Warning SystemSeat Heater SystemSliding Roof SystemSmart Access System With Push-Button Start (For Entry Function)Smart Access System With Push-Button Start (For Start Function)Steering Lock SystemSupplemental Restraint SystemTelematics SystemTheft Deterrent SystemTire Pressure Warning SystemVehicle Proximity Notification SystemWindow Defogger SystemWindshield Deicer SystemWiper System / Washer SystemWireless Charging System
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.