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
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
An engine compartment fire can increase the risk of injury or crash.
Hyundai will notify owners, and dealers will replace the HECU fuse. For 2019-2021 model years, the
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
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
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
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
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
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
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
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.
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
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
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
After an impact with a large buck (deer) on a main highway while traveling 70 miles per hour, the airbags failed to deploy.
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.
