2020 Lexus GX 460 Service and Repair Manual

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Covers all 2020 GX 460 trims — Base, Luxury, Premium ·
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2020 Lexus GX 460 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
  • Luxury
  • 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 2020 Lexus GX 460 has no recalls on file with NHTSA.
No service bulletins No technical service bulletins on file with NHTSA for the 2020 Lexus GX 460.
02/19/20Component: BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCECrash reported

AS I WAS PARKING IN FRONT OF MY WORKPLACE, MY CAR SUDDENLY ACCELERATED AND FLEW OVER PARKING DIVIDER TO OTHER SIDE OF THE PARKING LOT ABOUT 25 YARDS. AT THE TIME I WAS PULLING IN MY PARKING SLOT LIKE EVERY DAY IN THE MORNING, TURNING 90 DEGREES AND DRIVING VERY SLOW, AND SLOWING DOWN TO COMPLETE MY PARKING. MY CAR HIT AND FLEW OVER PARKING SIGN AND OTHER OBSTACLES PLACED ON CURBSIDE DIVIDER. I LET MY CAR TO BE TOWED TO THE DEALERSHIP AND IMMEDIATELY REPORTED MY SAFETY CONCERNS TO THE LEXUS HEADQUARTERS THEY ARE CURRENTLY INVESTIGATING THE ISSUE. I HAVE SIGNED AND SUBMITTED CONSENT FOR THOROUGH

02/05/20Component: UNKNOWN OR OTHER

Sunroof exploded outward while driving and closed

02/18/20Component: VISIBILITY

The contact owns a 2020 Lexus GX460. The contact stated upon starting the vehicle and driving for 10-15 minutes, the windshield and the windows became significantly foggy, requiring the contact to remove the seat belt to lean forward and wipe the windshield to pull over safely. Additionally, the contact wiped all the windows and resumed driving. The contact stated the failure had been recurring while driving. The vehicle was taken to the dealer, where it was diagnosed with an HVAC blend door actuator failure. The vehicle was being repaired. The manufacturer was notified of the failure and a ca

12/24/20Component: SERVICE BRAKES

With brake pedal all the way to the floor, vehicle rolls from stopped position. Brake fluid is not low and no brake fluid leak is apparent. No warning lights illuminated.

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