2021 Genesis G70 Service and Repair Manual

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Factory-Grade Data

The 2021 Genesis G70 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

  • Advanced Sedan 4-Door
  • Base Sedan 4-Door
  • Elite Sedan 4-Door
  • Prestige Sedan 4-Door
  • Sport Sedan 4-Door

Engines covered

  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged
  • 3.3L 3342CC V6 GAS DOHC Turbocharged

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

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Vehicle Safety Data

2021 Genesis G70 Recalls & Complaints

NHTSA #20V56900021/09/2020Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Hyundai Motor America (Hyundai) is recalling certain 2021 Genesis G70 vehicles equipped with 2.0L GDI engines. The fuel pump's jet nozzle may have a plastic burr remaining from the manufacturing proc

Consequence

Insufficient fuel supply can result in an engine stall, increasing the risk of a crash.

Remedy

Hyundai will notify owners, and dealers will inspect and repair the fuel pump assembly jet nozzle, f

NHTSA #21V16100010/03/2021Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED

Hyundai Motor America (Hyundai) is recalling certain 2019-2021 Genesis G70 vehicles. The Anti-Lock Brake System (ABS) module could malfunction and short circuit.

Consequence

An electrical short circuit inside the ABS module could cause an engine compartment fire while parke

Remedy

Owners are advised to park outside and away from structures until the remedy is complete. Hyundai w

NHTSA #24V19100008/03/2024Component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

Hyundai Motor America (Hyundai) is recalling certain 2018-2020 Genesis G80, 2017-2022 G90, and 2019-2022 G70 vehicles equipped with a 3.3-liter V6 turbocharged engine. The left turbocharger oil feed

Consequence

An oil leak in the presence of hot engine components can increase the risk of an engine compartment

Remedy

Dealers will replace the left turbocharger oil feed pipe, free of charge. Owner notification letter

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 #11031401

Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solen

TSB #11031265

Certain 2019 2022 model year Genesis G70 vehicles may experience an inoperative blower motor (not blowing) that may be caused by damage or deterioration of the blower motor multi-fuse and fuse box. At Genesis, we are committed to providing

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 #11029505

The warranty coverage for repairs and replacement of the front wiring on some G70 (IK) vehicles has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is va

TSB #11029504

Some vehicles may have an inoperative blower motor (not blowing). This may be caused by damage or deterioration of the blower motor multi-fuse and fuse box. The warranty coverage for repairs and replacement of the front wiring on 2019-2022M

TSB #11029503

The warranty coverage for repairs and replacement of the front wiring on some G70 (IK) vehicles has been extended to 10 years or 120,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is va

Showing the 8 most recent of 43 technical service bulletins on file with NHTSA.

20260223Component: SERVICE BRAKESCrash reported

Summary of Reported Behaviors Lurching: Commonly reported, often deemed a software/adaptive issue. Brake Issues: Commonly reported, often attributed to pad-to-rotor deposits, or in some cases, the rec

20260223Component: ENGINECrash reported

Summary of Reported Behaviors Lurching: Commonly reported, often deemed a software/adaptive issue. Brake Issues: Commonly reported, often attributed to pad-to-rotor deposits, or in some cases, the rec

20260223Component: UNKNOWN OR OTHERCrash reported

Summary of Reported Behaviors Lurching: Commonly reported, often deemed a software/adaptive issue. Brake Issues: Commonly reported, often attributed to pad-to-rotor deposits, or in some cases, the rec

20260224Component: ENGINE

2021 Genesis G70 engine shutting off at stops, often linked to the Idle Stop and Go (ISG) system or, in some cases, unexpected stalls. Possibly the automatic transmission's calibration leading to roug

20260224Component: UNKNOWN OR OTHER

2021 Genesis G70 engine shutting off at stops, often linked to the Idle Stop and Go (ISG) system or, in some cases, unexpected stalls. Possibly the automatic transmission's calibration leading to roug

Showing the 5 most serious of 8 complaints filed with NHTSA.

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