2020 Hyundai Santa FE electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Aug 14, 2026TXElectrical SystemLightingOther / Unknown

   The multifunction/turn signal switch in my Hyundai has failed and causes the left turn signal to operate intermittently. While driving, I am unable to reliably activate the left turn signal when making a left turn or changing lanes. The signal may fail to engage when the turn signal lever is operated, requiring repeated attempts to activate it. College Station Hyundai inspected the vehicle and diagnosed the multifunction switch as the failed component requiring replacement.…

   NHTSA complaint #11756946 · source
2. Filed Aug 12, 2026PAFireElectrical SystemEngineOther / Unknown

   I went to the store, came home , parked and turned off the car. Went to go outside about 10 minutes ,maybe. Black smoke coming from right front. By the time i grabbed the keys and fire extinguisher there were flames coming from the engine compartment

   NHTSA complaint #11756416 · source
3. Filed Jun 14, 2026VADriver Assistance & Safety TechElectrical SystemSteering

   Vehicle experiences severe, intermittent, un-commanded steering inputs from the Lane Keeping Assist (LKA) system at highway speeds (55-70 MPH). The steering wheel violently jerks toward adjacent traffic lanes/shoulders without operator input, lane drift, or warning, requiring immediate high-force manual intervention to overpower mechanical torque and prevent a collision or roadway departure. Chronology of manufacturer notice: - Oct 2024: Initial consumer dispute logs flagged…

   NHTSA complaint #11743968 · source
4. Filed Feb 23, 2026PAElectrical SystemEngine

   On the morning of February 20 2026 at around 6:35am. I was on my way to work when the engine light started flashing and the speed started to decrease. I was traveling on a major highway in heavy rain with a lot of traffic. I had to put on my hazard lights and quickly pull off the road. The code given is P1326 which has to do with the engine and wiring harness. I just purchased the vehicle on Jan. 17 2026. The Carfax stated no open recalls.

   NHTSA complaint #11719921 · source
5. Filed Nov 23, 2025OKElectrical System

   Unknown Sometimes when i stop the vehicle the engine shuts off and wont come back on until i put the car in park and turn the ignition off. Not safe at all when your in heavy traffic

   NHTSA complaint #11701030 · source
6. Filed Nov 3, 2025VAElectrical SystemOther / Unknown

   2020 Sante fe with 59000 miles on it. Air stops blowing cold, I look it up and there is a TSB for the Evaporator Temperature Sensor from May of 2021. This is a safety issue because if you run the air conditioning or defroster if the sensor is bad it clicks off the compressor which can affect the fan and overheat the car. I watched it happen on my car when they ran the diagnostic trying to fix it. It came up as a bad sensor, and it clicked off the compressor. The fact that a…

   NHTSA complaint #11697132 · source
7. Filed Oct 2, 2025FLElectrical System

   2020 Hyundai Santa Fe Limited AWD, VIN [XXX] , 30,000 miles. Air conditioning fails to blow cold air; climate control displays -10°F, indicating a defective evaporator temperature sensor per Hyundai TSB 21-HV-002H (2021). Dealer diagnosed evaporator/thermostat failure, quoted $2,500, despite TSB specifying a $30–$50 sensor replacement. Vehicle is 9 months past 5-year warranty but under 60,000 miles. This known defect causes driver discomfort and potential visibility issues…

   NHTSA complaint #11690932 · source
8. Filed Jul 28, 2025MADriver Assistance & Safety TechElectrical System

   *Problem Parts:I only could check 1 box- should be Brakes and Steering too *ADAS: Lane Keeping Assistance too Over the course of two days, my 2020 Hyundai Santa Fe experienced a serious electrical and safety system failure. It started with the blind spot monitoring lights flickering in the side mirrors and warnings for Forward Collision Avoidance (disabled), ABS, Electronic Stability Control, Downhill Brake Control, Parking Brake & Brake Fluid (blinking red). The rearview…

   NHTSA complaint #11676563 · source
9. Filed Jun 23, 2025KSElectrical SystemEngine

   Vehicle killed the battery even with new alternator and new battery. Dealership does not know why and it died while at the shop. Vehicle has extremely high oil consumption and light comes on every once in a while. Vehicle started shaking and took to two dealership. Vehicle was diagnosed with a burnt valve in cylinder one. Dealer stated they have not heard of this problem. Called Hyundai representative corporate and was told they never had this problem before and have not…

   NHTSA complaint #11668750 · source
10. Filed May 28, 2025WIDriver Assistance & Safety TechElectrical SystemAcceleration & Cruise Control

    Frequent intermittent dash warning lights, no speed indicated, no tach indicated, cycles through warnings of safety systems malfunctioning. No lane departure, no adaptive cruise, no cruise, no forward collision warning, no blind spot warning. The disabling of these systems puts all drivers at risk. Dealership replaced front camera and windshield to fix this issue. Not fixed, continues to alarm at random times while driving.

    NHTSA complaint #11663466 · source
11. Filed Jan 13, 2025MOElectrical System

    The backup camera will sometimes have black lines and flash off/on while in reverse. Other times, it will display a solid blue screen and the camera doesn't show an image at all. I took it to the dealer and since they weren't able to replicate the problem, they didn't look at it. I showed them a video I recorded, but that wasn't good enough. It's happening more often and seems to mostly occur after the vehicle has been parked outside.

    NHTSA complaint #11635622 · source
12. Filed Dec 9, 2024FLFireElectrical SystemOther / Unknown

    The vehicle seat caught fire overnight, Sept 26th, and was discovered the morning of Sept 27th 2024. The fire was contained to inside the vehicle and melted parts of the driver seat and lower part of steering wheel. The vehicle interior was covered in orange dust and had extremely toxic smell inside. Insurance 3rd party inspected and declared it a total loss. A few weeks later, a neighbor and fellow Hyundai SantaFe owner mentioned that he had heard of an issue with the Santa…

    NHTSA complaint #11629667 · 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