2024 Lexus NX 450h+ Service and Repair Manual

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2024 Lexus NX 450h+ 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 Handling

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 2024 Lexus NX 450h+ has no recalls on file with NHTSA.
No service bulletins No technical service bulletins on file with NHTSA for the 2024 Lexus NX 450h+.
03/13/20Component: ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCECrash reported2 injured

I was in a car accident on the freeway . I had just got onto the freeway so I couldn’t have been going that fast . The brakes on this Lexus Nx [XXX] to say the least . Also the collision sensor and warning also are useless. The warning light and sound didn’t go off until I was basically rear ending the other vehicle . I had a different , 10 year old car . A 2014 that would start to pump air and brake itself even when the car sensor believed it was close to a car and I wasn’t braking . This 2024 Lexus didn’t brake nor warn me in time . When I did notice the car in front of me had come to a comp

11/18/20Component: ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGESCrash reported1 injured

Lexus [XXX] & [XXX] [XXX] [XXX] [XXX] Lexus P.O. Box 259001 Mail Drop E3-2D Plano, TX 75025-9001 To Whom It May Concern, I am writing to express my serious concerns regarding a safety issue we encountered with our 2024 Lexus NX350, purchased from your dealership at 1000 Interstate Parkway, Akron, Ohio, 44312, in August 2023. Our purchasing experience met the high expectations associated with the Lexus brand, and we were pleased with the vehicle's features. During the delivery process, we received a walkthrough of the car's functionalities, and the technician assisted us in co

04/25/20Component: ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES1 injured

My 2024 Lexus NX 450h+ experienced a complete 12V battery failure after normal short-distance driving, leaving me stranded without warning. This is a known defect in Lexus plug-in hybrids that the manufacturer has not properly disclosed to buyers. Incident Details: After several short trips (all under normal driving conditions), my 2024 Lexus NX 450h+ failed to start. The vehicle was completely non-responsive. Because the doors and liftgate were locked and inoperable, I was forced to crawl through the rear cargo area with a pre-existing mobility issue (bad leg), causing significant physical p

03/29/20Component: VEHICLE SPEED CONTROL,SERVICE BRAKES,BACK OVER PREVENTIONCrash reported

Possible malfunction involves vehicle speed control and braking during a low-speed parking maneuver in my 2024 Lexus NX350h. While slowly pulling into a parking space, I was actively applying the brake and creeping forward. While my foot was on the brake, the vehicle suddenly surged/accelerated forward instead of continuing to decelerate. The vehicle ran over a sign and jumped a curb before I could stop it. The vehicle is available for inspection and is currently with the Lexus dealer. My safety and the safety of others were put at serious risk because this occurred unexpectedly while parking

07/20/20Component: FUEL/PROPULSION SYSTEM,FORWARD COLLISION AVOIDANCECrash reported

AUTOMATIC BRAKING SYSTEM FAILED AFTER I EXPERIENCD A SUDDEN ACCELERATION LEXUS INSPECTED THE VEHICLE AN PRINTED OUT ALL SORTS OF DATA WHICH THEY ARE SUPPOSED TO EXPLAIN TO ME IN45 DAYS NOT PRIOR WARNIG SIGNS

05/02/20Component: ENGINEFire reported

The contact owned a 2024 Lexus NX530. The contact stated that while parked and turned off, a few hours later, she observed a fire emanating from the front of the vehicle. The fire then spread to another vehicle that was parked in front of the vehicle. The fire department arrived and defused the fire. The contact stated that the fire department advised her that the fire originated from the engine compartment. The vehicle was towed to a salvage lot. A fire report was taken, and a police report was pending being filed. The contact mentioned that while driving the vehicle prior to the fire, there

04/28/20Component: UNKNOWN OR OTHERCrash reported

Was parking at grocery store, very slowly advancing into parking space when car suddenly accelerated and ran into a brick pillar, jumping the curb.

04/02/20Component: ELECTRICAL SYSTEMFire reported

The Drivers side door (light at the bottom of the door) sparked and then the door went up in flames. At that point the electricity in the car ceased to work. The car is available for inspection at the dealership where we had it towed. If the door was closed and there was someone in the car when it happened then they would have gotten burned or worse. Our insurance company is investigating and Lexus has been taking their time and helpful in the matter. Fire Department checked out the car at the time and said the wires in the door were very hot after putting out the fire. There were no

Showing the 8 most serious of 36 complaints filed with NHTSA.

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