2023 Lexus UX 250h Service and Repair Manual

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2023 Lexus UX 250h service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications, torque values, and reference data
  • Electrical diagnostics with full wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
  • Diagnostic trouble codes and troubleshooting flow
  • Maintenance schedules and fluid capacities

Trims covered

  • Base
  • F Sport Design
  • F Sport Handling
  • Premium

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Maintenance & Lubrication
  • Specifications
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Diagnostic Trouble Codes
  • Technical Service Bulletins
  • Wiring Diagrams
No active recalls The 2023 Lexus UX 250h has no recalls on file with NHTSA.
No service bulletins No technical service bulletins on file with NHTSA for the 2023 Lexus UX 250h.
07/01/20Component: ELECTRICAL SYSTEMCrash reported

All doors were closed and no warnings on the dash before I started driving and I made sure kids lock was engaged by checking the door lock status inside the vehicle because I had two kids sitting on the back seat with car seat installed. However, while I was driving at 30 mp/h, the door open warning appeared on the dash indicated that the left rear door was not closed and the chime was played continuously, I panic'd because I had kids in the rear seats and I ended up getting hit by a tree. Luckily kids were safe but I had no idea why the door decide to unlock and opened itself while driving,

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