2024 Genesis G90 Service and Repair Manual

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Covers all 2024 G90 trims — Base Sedan 4-Door, E-Supercharger Sedan 4-Door ·
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The 2024 Genesis G90 Service and Repair Manual is a practical, workshop-ready reference for maintenance, diagnostics, and repairs. Use it to troubleshoot symptoms, follow step-by-step procedures, verify specifications, and confirm wiring and connector locations before replacing parts.

Ideal for technicians and DIY owners, it supports everything from routine service to deeper mechanical and electrical work—including drivability, no-start, warning lights, overheating, brake and suspension issues, HVAC faults, and circuit testing.

Trims covered

  • Base Sedan 4-Door
  • E-Supercharger Sedan 4-Door

Engines covered

  • 3.5L 3470CC V6 GAS DOHC Turbocharged
  • 3.5L 3470CC V6 MILD HYBRID EV-GAS (MHEV) DOHC Turbo/Supercharged

What’s inside

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

Why this manual matters

  • Faster diagnostics with system-based troubleshooting and wiring diagrams
  • Clear procedures and reference sections to reduce guesswork and rework
  • Helpful for maintenance planning and verifying parts/specs before repairs
NHTSA #26V22900010/04/2026Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Hyundai Motor America (Genesis) is recalling certain Genesis 2022-2026 GV70, 2023-2025 G90, 2021-2025 G80, and GV80 vehicles. Fuel may leak at the pipe connection between the fuel pipe and fuel rail.

Consequence

A fuel leak increases the risk of a fire.

Remedy

Dealers will inspect and tighten, or replace the fuel pipe as necessary, free of charge. Owner notif

NHTSA #26V21800006/04/2026Component: SEAT BELTS:FRONT:ANCHORAGE

Hyundai Motor America (Hyundai) is recalling certain 2023-2025 Hyundai Ioniq 6, 2023-2026 Genesis G90, 2024-2026 Hyundai Santa Fe, and Hyundai Santa Fe Hybrid vehicles. The driver and passenger seat b

Consequence

A detached seat belt anchor will not adequately restrain the seat occupant, increasing the risk of i

Remedy

Dealers will inspect and reinforce or replace the seat belt anchors, as necessary, free of charge. O

NHTSA #25V83300002/12/2025Component: ELECTRICAL SYSTEM:ADAS

Hyundai Motor America (Hyundai) is recalling certain 2023-2026 Genesis G90 vehicles. The Highway Drive Assist (HDA) corner radar may falsely detect another vehicle, which can result in sudden, uninten

Consequence

Sudden, unintended braking increases the risk of a crash.

Remedy

Owners are advised not to use the Highway Drive Assist feature until the remedy has been performed.

TSB #11033711

This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer t

TSB #11032523

The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous drivers-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These infla

TSB #11032522

The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driverside airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN),

TSB #11031317

Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services (CCS) functions. This may be due to an occasional disconnection on Verizon's communication network. Technical Service Bulletin (

TSB #11031316

Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services (CCS) functions. This may be due to an occasional disconnection on Verizons communication network. Follow the procedures in this

TSB #11030323

Some 2020MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration range may be exceeded

TSB #11025476

This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside th

TSB #11023693

This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.

Showing the 8 most recent of 35 technical service bulletins on file with NHTSA.

20260420Component: SERVICE BRAKES

I own a 2024 Genesis G90 with two active NHTSA recalls: 25V474 and 25V833. On April 19, 2026, the vehicle suffered a total electrical failure: “Check brake system” warning Engine would not start E

20260420Component: ELECTRICAL SYSTEM

I own a 2024 Genesis G90 with two active NHTSA recalls: 25V474 and 25V833. On April 19, 2026, the vehicle suffered a total electrical failure: “Check brake system” warning Engine would not start E

20260420Component: ENGINE

I own a 2024 Genesis G90 with two active NHTSA recalls: 25V474 and 25V833. On April 19, 2026, the vehicle suffered a total electrical failure: “Check brake system” warning Engine would not start E

20250514Component: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

I purchased a new 2024 Genesis g90 vehicle from Key Genesis in Jacksonville Florida. I live in Navarre Florida near Pensacola so I took the vehicle into the Pensacola dealership for service. For almos

20250514Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I purchased a new 2024 Genesis g90 vehicle from Key Genesis in Jacksonville Florida. I live in Navarre Florida near Pensacola so I took the vehicle into the Pensacola dealership for service. For almos

Showing the 5 most serious of 6 complaints filed with NHTSA.

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