2018 Hyundai Santa Fe Problems: 8 Known Issues
2018 model year · 990+ owner reports · Updated October 2026
According to Au7o's analysis of 990+ owner reports, the 2018 Hyundai Santa Fe has 8 documented known issues, with 1 rated critical. The most serious is ABS/HECU Module Electrical Short Causing Engine Compartment Fire. The most commonly reported issue is Premature Alternator Failure with 550 owner reports. Across all issues with published estimates, repair costs range from $50 to $2,200. DIY maintenance guides at au7o.io.
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All 8 Known Issues
NHTSA Recalls17 recalls
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe and Sonata vehicles equipped with 2.5L turbocharged engines. Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel rail.
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
Hyundai Motor America (Hyundai) is recalling certain 2022 Santa Fe and Santa Cruz vehicles. The oil supply pipe to the turbocharger may crack, which could result in an oil leak in the engine compartment.
POWER TRAIN:AUTOMATIC TRANSMISSION
Hyundai Motor Company (Hyundai) is recalling certain 2021-2022 Santa Fe, Sonata, Veloster N, 2022 Santa Cruz, Elantra N, and Kona N vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.
TRAILER HITCHES
Hyundai Motor America (Hyundai) is recalling certain 2019-2023 Santa Fe, 2021-2023 Santa Fe HEV, 2022-2023 Santa Fe Plug-in HEV and Santa Cruz vehicles potentially equipped with a tow hitch harness installed as original equipment, or purchased as an accessory through a Hyundai dealership. Water accumulation on the tow hitch harness module printed circuit board (PCB) may cause an electrical short, which can result in a fire.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe, Santa Fe HEV, Elantra, Elantra HEV and 2022 Elantra N and Santa Fe PHEV vehicles. Due to a damaged printed circuit board, the rearview camera image may fail to display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
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Frequently Asked Questions
What are the most common Hyundai Santa Fe problems?
According to Au7o's analysis of 990+ owner reports, the 2018 Hyundai Santa Fe has 8 documented issues. The most frequently reported are: ABS/HECU Module Electrical Short Causing Engine Compartment Fire, Premature Alternator Failure, Transfer Case / PTU Fluid Leak and Whine. Of these, 1 is rated critical and should be addressed promptly.
Is the Hyundai Santa Fe reliable?
The 2018 Hyundai Santa Fe has 8 known issues documented across 990+ owner reports. 1 issue is rated critical: ABS/HECU Module Electrical Short Causing Engine Compartment Fire. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Hyundai Santa Fe problems?
Repair costs for known Hyundai Santa Fe issues range from $0 to $2,200, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2017-2018 Hyundai Santa Fe ABS/HECU Module Electrical Short Causing Engine Compartment Fire?
NHTSA recall 22V-056 (Hyundai recall 218) covers certain model-year 2017-2018 Santa Fe Sport and Santa Fe vehicles not equipped with Smart Cruise Control. The ABS module can malfunction internally and cause an electrical short over time. Significant overcurrent can increase the r… Severity: high.
What is the 2007-2018 Hyundai Santa Fe Premature Alternator Failure?
Alternators in Santa Fe models fail prematurely, often between 60,000-100,000 miles. The voltage regulator or rectifier diodes fail, causing undercharging, battery drain, and eventually no-start conditions. Some owners report multiple alternator replacements within the vehicle's… Repairs typically run $300-$600. Severity: medium.
What is the 2013-2020 Hyundai Santa Fe Transfer Case / PTU Fluid Leak and Whine?
The power transfer unit (PTU) on AWD Santa Fe models develops seal leaks, leading to fluid loss and eventual bearing damage. A whining noise from the front of the drivetrain is the first sign. If fluid runs low, the PTU gears can be damaged, requiring expensive replacement. The o… Repairs typically run $300-$2,200. Severity: medium.
What is the 2013-2025 Hyundai Santa Fe Panoramic Sunroof Drain Clog?
The panoramic sunroof drain tubes on the Santa Fe clog with leaves, pollen, and debris, causing water to overflow the sunroof tray and leak into the cabin. Water typically enters through the headliner area and drips onto the front seats or pools in the rear footwells. Extended wa… Repairs typically run $50-$500. Severity: medium.
What is the 2013-2019 Hyundai Santa Fe Panoramic Sunroof Spontaneous Shattering?
Santa Fe (and Santa Fe Sport) panoramic sunroofs have repeatedly shattered spontaneously, with no impact, often described by owners as sounding like a gunshot. Tempered glass tensioned over the large panoramic opening, combined with edge stress and ceramic-frit weakening, fails s… Repairs typically run $0-$1,500. Severity: medium.
What is the 2013-2020 Hyundai Santa Fe Excessive Oil Consumption - 2.4L GDI Engine?
Hyundai TSB 23-EM-008H provides inspection and repair guidance for vehicles with engine-oil-consumption concerns. Its parts and labor tables include model-year 2013-2018 Santa Fe Sport and 2019-2020 Santa Fe vehicles with the 2.4-liter GDI engine. The bulletin notes that some oil… Severity: medium.
What is the 2007-2019 Hyundai Santa Fe CVVT Actuator / Oil Control Valve Failure?
The Continuous Variable Valve Timing (CVVT) actuator and its associated oil control valve (OCV) on the Santa Fe's engines (the 2.7L Mu and 3.3L Lambda V6s and, from 2010, the Theta II four-cylinder) can fail, causing rough idle, poor fuel economy, and check engine lights. The OCV… Repairs typically run $300-$900. Severity: medium.
What is the 2013-2018 Hyundai Santa Fe Clear Coat / White Paint Delamination and Peeling?
Santa Fe paint, especially white/pearl-white and Hyundai's 'Scratch Recovery' self-healing clear coat, is prone to delamination — the clear coat and color coat lose adhesion to the layer beneath and begin peeling, flaking, or bubbling off in sheets, accelerated by UV exposure. It… Repairs typically run $0-$2,000. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.