2015 Hyundai Genesis Coupe Service and Repair Manual

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Factory-Grade Data

2015 Hyundai Genesis Coupe 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 and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • 3.8 R-Spec Coupe 2-Door
  • 3.8 GT Coupe 2-Door
  • 3.8 Coupe 2-Door
  • 3.8 Ultimate Coupe 2-Door

Engines covered

  • 3.8L 3778CC 231Cu. In. V6 GAS DOHC Naturally Aspirated

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
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2015 Hyundai Genesis Coupe Recalls & Complaints

NHTSA #23V65100022/09/2023Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED

Hyundai Motor America (Hyundai) is recalling certain 2011-2015 Elantra, Genesis Coupe, Sonata Hybrid, 2012-2015 Accent, Azera, Veloster, 2013-2015 Elantra Coupe, Santa Fe, 2014-2015 Equus, 2010-2012 V

Consequence

An engine compartment fire while parked or driving can increase the risk of injury.

Remedy

Owners are advised to park outside and away from structures until the recall repair is complete. De

NHTSA #15V75600016/11/2015Component: SUSPENSION:REAR

Hyundai Motor America (Hyundai) is recalling certain model year 2013-2015 Genesis Coupe vehicles manufactured December 28, 2011, to April 6, 2015, equipped with manual transmissions. In the affected

Consequence

If the rear differential loosens from its mounting position, the driveshaft may disconnect from the

Remedy

Hyundai will notify owners, and dealers will verify the proper assembly of the differential, free of

NHTSA #16V72200007/10/2016Component: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION

Hyundai Motor America (Hyundai) is recalling certain model year 2010-2016 Genesis Coupe vehicles manufactured December 12, 2008, to June 11, 2016. The electrical harness connector for the front passe

Consequence

In the event of a crash necessitating deployment of the passenger frontal air bag, the disconnected

Remedy

Hyundai will notify owners, and dealers will secure the OCS connector to prevent it from disconnecti

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 #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 #10253275

This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Page 2.

TSB #10251285

This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming

TSB #10251277

This bulletin outlines the basic components of the BG Fuel Test Kit and the procedure to test the quality of the fuel during vehicle diagnosis. Poor fuel quality may lead to cold engine startability issues, hesitation at idle or during acce

TSB #10247189

This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.

TSB #10235566

Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can becom

Showing the 8 most recent of 50 technical service bulletins on file with NHTSA.

20241109Component: SERVICE BRAKESFire reported

My car was leaking brake fluid but no spots on ground. My brakes started locking and not work at all. After having car serviced multiple times my brakes completly stopped all together. Left for mechan

20241109Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKINGFire reported

My car was leaking brake fluid but no spots on ground. My brakes started locking and not work at all. After having car serviced multiple times my brakes completly stopped all together. Left for mechan

20241109Component: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROLFire reported

My car was leaking brake fluid but no spots on ground. My brakes started locking and not work at all. After having car serviced multiple times my brakes completly stopped all together. Left for mechan

20210601Component: FUEL/PROPULSION SYSTEMFire reported

On 4/5/2021 my vehicle caught fire while I was driving. The fuel line corroded and shot fuel into the manifold and the engine caught fire and was a total loss. Two other vehicles the same year also ca

20250514Component: POWER TRAIN

The differential mounting bolt on the passenger side (the only one on that side) backed out and broke causing that side of the differential to smack the bottom of the car and then sag on the passenger

Showing the 5 most serious of 21 complaints filed with NHTSA.

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