2018 Hyundai Tucson Service and Repair Manual

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Covers all 2018 Tucson trims — Premium Sport Utility 4-Door, GLS Sport Utility 4-Door, SE Sport Utility 4-Door +6 more ·
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2018 Hyundai Tucson 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

  • Premium Sport Utility 4-Door
  • GLS Sport Utility 4-Door
  • SE Sport Utility 4-Door
  • SEL Sport Utility 4-Door
  • Value Edition Sport Utility 4-Door
  • GLS Premium Sport Utility 4-Door
  • SEL Plus Sport Utility 4-Door
  • Limited Sport Utility 4-Door
  • Sport Sport Utility 4-Door
  • Ultimate Sport Utility 4-Door
  • Base Sport Utility 4-Door
  • Luxury Sport Utility 4-Door
  • Noir Sport Utility 4-Door
  • Limited Tech Sport Utility 4-Door

Engines covered

  • 2.0L 1999CC l4 GAS DOHC Naturally Aspirated
  • 2.0L 1999CC 122Cu. In. l4 GAS DOHC Naturally Aspirated
  • 1.6L 1591CC 97Cu. In. l4 GAS DOHC Turbocharged
  • 2.4L 2359CC l4 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
NHTSA #20V54300004/09/2020Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED

Hyundai Motor America (Hyundai) recalled certain 2019-2021 Tucson vehicles on September 4, 2020. On December 30, 2020, Hyundai expanded the recall population, and added certain 2016-2018 Tucson vehic

Consequence

An engine compartment fire can increase the risk of injury or crash.

Remedy

Hyundai will notify owners, and dealers will replace the HECU fuse. For 2019-2021 model years, the

TSB #11033705

Following completion of Service Campaign 9C2 (Theta II Emissions Improvement), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only wit

TSB #11033701

Following completion of Service Campaign 9C2 (Theta II Emissions Improvement), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only wit

TSB #11033700

Certain Santa Fe (TMA), Santa Fe Sport (AN), Sonata (LFA), and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. The California Air Resources Board has determined that these vehicles may be relea

TSB #11033699

Certain Santa Fe (TMA), Santa Fe Sport (AN), Sonata (LFA), and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. This bulletin provides instructions for updating the Engine Control Module (ECM) t

TSB #11032529

Certain Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extend

TSB #11032528

Some Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended

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),

Showing the 8 most recent of 125 technical service bulletins on file with NHTSA.

20210111Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT OWNS A 2018 HYUNDAI TUCSON. THE CONTACT STATED THAT WHILE HIS MOTHER WAS DRIVING AT 30 MPH, SHE WAS STRUCK FROM THE FRONT PASSENGER SIDE BY ANOTHER VEHICLE THAT WAS TRAVELING 40 MPH. T

20200928Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT OWNS A 2018 HYUNDAI TUCSON. THE CONTACT STATED WHILE IDLE ANOTHER VEHICLE DRIVING APPROXIMATELY 55 MPH CRASHED INTO THEIR VEHICLE FROM THE REAR CAUSING THEM TO REAR END THE VEHICLE IN

20200928Component: SEAT BELTSCrash reported2 injured

TL* THE CONTACT OWNS A 2018 HYUNDAI TUCSON. THE CONTACT STATED WHILE IDLE ANOTHER VEHICLE DRIVING APPROXIMATELY 55 MPH CRASHED INTO THEIR VEHICLE FROM THE REAR CAUSING THEM TO REAR END THE VEHICLE IN

20250613Component: AIR BAGSCrash reported1 injured

After an impact with a large buck (deer) on a main highway while traveling 70 miles per hour, the airbags failed to deploy.

20250613Component: ELECTRICAL SYSTEMCrash reported1 injured

After an impact with a large buck (deer) on a main highway while traveling 70 miles per hour, the airbags failed to deploy.

Showing the 5 most serious of 516 complaints filed with NHTSA.

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