2018 Hyundai Tucson electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Jul 7, 2026CAElectrical SystemEngineTransmission & Drivetrain

   While driving my 2018 Hyundai Tucson Limited 1.6L Turbo with the 7-speed EcoShift dual clutch transmission (DCT), the vehicle has repeatedly failed to engage and hold gears, resulting in loss of motive power in traffic. Diagnostic scanning retrieved codes P074B (Unable to Engage Gear 3), P074B71 (Unable to Select 3rd Gear), P074B07 (Gear Dropped Out of 3rd Gear), P092177 (1st Gear System Referencing Failure), and P0921 (Gear Shift Forward Actuator Circuit Range/Performance).…

   NHTSA complaint #11748939 · source
2. Filed Jun 10, 2026AZElectrical SystemEngine

   While idling at a standstill (in a drive-thru queue), my 2018 Hyundai Tucson suddenly experienced a severe engine overheat, causing the vehicle's air conditioning system to immediately blow hot air and shut down. The vehicle was brought directly to an authorized Hyundai dealership (Chapman Hyundai on [XXX]) for an emergency inspection.The dealership's certified technicians confirmed that the electric Engine Cooling Fan Assembly completely failed and subsequently caused the…

   NHTSA complaint #11743329 · source
3. Filed Feb 6, 2026MEElectrical SystemEngineSteering

   While driving on a public road, the vehicle experienced multiple simultaneous, dangerous malfunctions: Dashboard Warnings: All lights illuminated, including engine (flashing), ABS, traction control, airbag, TPMS, and parking brake, which stayed on though disengaged. Engine & Transmission: Tachometer fluctuated wildly in park; engine revved without accelerator input. Shifting to drive/reverse caused unexpected “kicks.” Vehicle sometimes failed to move when pressing gas,…

   NHTSA complaint #11716145 · source
4. Filed Dec 3, 2025ILElectrical SystemEngine

   My 2018 Hyundai Tucson experienced complete engine failure at around 118,000 miles. The motor suddenly blew without warning. This vehicle uses an engine type known for widespread engine defects, including bearing wear and internal failure. I bought the vehicle used in 2023, maintained it regularly, and there were no warning lights or overheating before the failure. I had to put oil in my vehicle every week. I had to use 5qts of oil. It smelled like fumes coming through the…

   NHTSA complaint #11702770 · source
5. Filed Oct 1, 2025NCElectrical SystemEngineLighting

   I am filing a complaint under the NC Unfair and Deceptive Trade Practices Act (N.C. Gen. Stat. § 75-1.1) regarding Hyundai’s handling of my 2018 Hyundai Tucson (purchased new May 2018). Since 2019, the vehicle has had repeated headlight failures (at least 12 bulb replacements), persistent “bulb out” warnings, and eventually melted wiring requiring headlamp assembly replacement in 2025. These issues were first reported in April 2023 under warranty but dismissed as “could not…

   NHTSA complaint #11690889 · source
6. Filed Sep 18, 2025VAElectrical System

   Parked subject car in garage at approximately 11:15 am after turning off ventilation fan and cutting engine off, which displayed "off" at dash button. At approximately 7 pm (same day) went into garage to retrieve item and heard this loud noise similar to an electric clothes dryer running - wasn't dryer. As i got close to car, heard this same sound. Raised hood and could feel air movement . Checked engine oil - not warm. Backed car out of garage into driveway out of safety…

   NHTSA complaint #11688097 · source
7. Filed Jun 13, 2025TXCrash1 injuredTowedAirbagsElectrical System

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

   NHTSA complaint #11666669 · source
8. Filed Aug 23, 2024109,000 miCACrashTowedElectrical SystemEngineTransmission & Drivetrain

   In May 2024 my Hyundai Tucson died in a middle of an intersection with no warning. Worse than that is Hyundai motor USA informed me that the car was on a recall list for an engine failure issue that was apart of class action suit . Ans further told me that that were obligated to have the highway transportation safety dept notified first consider cause of the issue. They told an inspector from your department was required to inspect vehicle before repairs could be started and…

   NHTSA complaint #11610579 · source
9. Filed Apr 30, 2024IADriver Assistance & Safety TechElectrical SystemEngine

   Bought car [XXX] blew up 2 weeks later knock censor was not put on by first dealership so engine blew on interstate car was possible on fire due to as much smoke was coming from vehicle could of been rear ended engine failure due to that no warning of engine failure tucson knows all these problem and is currently in a class action lawsuit and have known the problem for years dealership had to of known this was going on with this engine but sold the car to unsuspecting…

   NHTSA complaint #11586219 · source
10. Filed Apr 21, 2024MSBrakesElectrical SystemTransmission & Drivetrain

    ABS SENSOR, downhill light, traction control light stays on. In August 2023 the transmission had to be rebuilt from slipping. After work there is still transmission slipping. Media display goes blank often and will not show all of display sometimes.

    NHTSA complaint #11584294 · source
11. Filed Apr 14, 2024VAElectrical SystemEngineFuel, Hybrid & EV Propulsion

    The car experienced a red, blinking check engine light. We had the car towed to the local Hyundai dealership. Please see attached document for the work that was done. This was in November 2023, and we just now had to have the car towed to the dealership again (April 2024).

    NHTSA complaint #11582893 · source
12. Filed Oct 25, 2023COElectrical SystemSeats & Seat Belts

    My automatic seat recliner is stuck and hasn’t worked for quiet sometime now. Also The motor stopped working as I was driving home, So I took it to a mechanic to assess the situation and was told the motor was the issue

    NHTSA complaint #11551910 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology