According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Hyundai Sonata has 2 documented known issues, with 1 rated critical. The most serious is Front Radar / Forward Collision-Avoidance Warning Disabled by Sensor or Calibration Faults ($250-$2,200 repair). Across all issues with published estimates, repair costs range from $250 to $2,200. DIY maintenance guides at au7o.io.
On the 2022-2025 Hyundai Sonata, owners have reported the Forward Safety system, Smart Cruise Control, and related ADAS features becoming unavailable with warning messages such as front radar blocked or forward safety system disabled. In some cases the problem appears after minor front-end work, bumper cover replacement, windshield service, or without obvious damage, pointing to radar alignment, sensor contamination, bracket movement, or module faults. This is well documented through owner complaints and Hyundai service information covering ADAS inspection and calibration procedures.
Inspect the front radar area for impact damage, loose mounting, water intrusion, debris, or non-OEM bumper/grille parts affecting radar transmission. Perform a full scan for ADAS faults and complete static/dynamic calibration per Hyundai procedure; replace the radar sensor or bracket if alignment cannot be achieved or internal faults are stored. After repairs, verify operation of FCA, SCC, and lane/driver-assist functions on a road test.
Owner tips & cautions
TipAfter any bumper, grille, or front-end repair, insist on documented ADAS calibration rather than assuming the radar will self-correct.
TipKeep the radar cover and grille area clean and free of heavy wax, ice, or plate brackets that can interfere with the sensor.
On the 2021-2023 Hyundai Sonata, hyundai TSB 25-FL-001H covers specified production ranges of model-year 2021-2023 Sonata vehicles equipped with the 2.5-liter GDI Theta III non-turbo engine. Some affected vehicles may store one or more misfire DTCs due to GDI injectors leaking internally; the bulletin says internal filter breakage in an injector may cause the leak.
Confirm that the vehicle falls within the bulletin's production range and has one of the listed misfire DTCs. For an applicable vehicle, Hyundai directs technicians to replace all four GDI injectors using the specified kit. If the listed DTCs are absent or the vehicle is outside the range, the bulletin says to continue normal diagnosis instead.
Hyundai Motor America (Hyundai) is recalling certain 2024 Hyundai Sonata vehicles. The software for the brake lights may cause the brake lights to flash and not illuminate properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Campaign #24V58300007/08/2024
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.
Campaign #22V74600006/10/2022
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.
Campaign #21V52400009/07/2021
FUEL SYSTEM, GASOLINE
Hyundai Motor America (Hyundai) is recalling certain 2020-2023 Sonata vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.
Campaign #25V79600018/11/2025
POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:PUMP
Hyundai Motor America (Hyundai) is recalling certain 2023-2024 Palisade Tucson, 2023 Sonata, Elantra, and Kona vehicles. The electronic controller for the Idle Stop & Go oil pump assembly may contain damaged electrical components that can cause the pump controller to overheat.
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Hyundai Sonata has 2 documented issues. The most frequently reported are: Front Radar / Forward Collision-Avoidance Warning Disabled by Sensor or Calibration Faults, Fuel Injector Failure Causing Misfire, Rough Running, and Check Engine Light. Of these, 1 is rated critical and should be addressed promptly.
Is the Hyundai Sonata reliable?
The 2023 Hyundai Sonata has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Front Radar / Forward Collision-Avoidance Warning Disabled by Sensor or Calibration Faults. 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 Sonata problems?
Repair costs for known Hyundai Sonata issues range from $250 to $2,200, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Front Radar / Forward Collision-Avoidance Warning Disabled by Sensor or Calibration Faults, typically costs $250-$2,200 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2022-2025 Hyundai Sonata Front Radar / Forward Collision-Avoidance Warning Disabled by Sensor or Calibration Faults?
Owners have reported the Forward Safety system, Smart Cruise Control, and related ADAS features becoming unavailable with warning messages such as front radar blocked or forward safety system disabled. In some cases the problem appears after minor front-end work, bumper cover rep… Repairs typically run $250-$2,200. Severity: high.
What is the 2021-2023 Hyundai Sonata Fuel Injector Failure Causing Misfire, Rough Running, and Check Engine Light?
Hyundai TSB 25-FL-001H covers specified production ranges of model-year 2021-2023 Sonata vehicles equipped with the 2.5-liter GDI Theta III non-turbo engine. Some affected vehicles may store one or more misfire DTCs due to GDI injectors leaking internally; the bulletin says inter… Severity: medium.
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.
