Owners have reported 6 crashes and 2 injuries to NHTSA for the 2023 Hyundai Sonata. These are unverified owner reports, not confirmed defect rates.
Owner complaints18
FUEL/PROPULSION SYSTEM
Owners report frequent issues with the fuel injectors in the 2023 Hyundai Sonata, often leading to sudden loss of power and engine stalling. Typical symptoms include the vehicle shaking violently, failing to accelerate, and emitting strong gasoline odors. Complaints often occur at various mileage points, with some as low as 5,600 miles and others around 30,000 miles, indicating a potential problem across different usage levels. Safety concerns are significant, as multiple owners describe losing control on highways and busy roads, with some incidents nearly resulting in collisions. Buyers should be aware of these recurring injector failures and the associated risks when considering this model.
Owner complaints16
ENGINE
Owners report two primary engine-related issues with the 2023 Hyundai Sonata. The first involves coolant system defects, where complaints frequently mention internal coolant leaks leading to engine overheating, white smoke from the exhaust, and loss of interior heating. These issues often occur around 13,500 miles and have left multiple vehicles undriveable, with repairs not always covered under warranty. The second issue involves fuel injector failures, which result in engine power loss, stalling, and occasional fuel leaks, with some incidents occurring as early as 11,000 miles. Both problems pose safety risks, such as sudden power loss in traffic and potential fire hazards, making them significant considerations for prospective buyers.
Owner complaints15
POWER TRAIN
Owners of the 2023 Hyundai Sonata frequently report issues related to the power train, particularly involving unexpected gear shifts and loss of power. Complaints often describe the vehicle unexpectedly shifting from drive to park or failing to accelerate, with some incidents resulting in crashes. Several owners mention experiencing complete power loss while driving, with dashboard warning lights activating, typically at speeds above 60 mph. These issues commonly appear within the first year of ownership, and mileage varies widely, with some incidents occurring as early as a few hundred miles. Safety implications are significant, with reports of crashes and near-misses due to sudden loss of control or unintended vehicle movement.
Severity signals: 3 crash, 0 fire, 0 injury reports
Owner complaints8
ELECTRICAL SYSTEM
Owners report several electrical system issues with the 2023 Hyundai Sonata, including stalling and loss of power. Complaints frequently mention the car shutting down unexpectedly, often during deceleration or when shifting to park, with some reports describing dashboard lights flashing and media screens blacking out. Multiple owners describe needing to restart the vehicle to regain function, and one report highlights battery discharge within ten days when parked, suggesting inadequate battery capacity for electronic systems. Safety implications arise as these issues occur while driving, posing potential risks of accidents. The problems appear to affect both new vehicles and those with minimal mileage, as indicated by owners who report issues soon after purchase.
Owner complaints5
FUEL SYSTEM
Owners of the 2023 Hyundai Sonata frequently report issues related to the fuel system, with several complaints highlighting problems such as swollen fuel tanks and faulty fuel injectors. Typical symptoms include illuminated check engine warning lights, unexpected deceleration or stalling, and abnormal fuel gauge readings. Mileage at the time of these issues varies, with some reports occurring around 5,000 miles and others as high as 75,000 miles. Safety implications are noted in cases where vehicles decelerate or stall abruptly, potentially leading to hazardous driving conditions. These patterns could be useful for potential buyers to consider, especially regarding the availability of parts for necessary repairs.
Owner complaints4
FORWARD COLLISION AVOIDANCE
Owners report issues with the forward collision avoidance system in the 2023 Hyundai Sonata, particularly involving unexpected emergency braking. Complaints frequently mention the system activating without apparent cause while driving at highway speeds, leading to sudden deceleration and potential safety hazards, such as the risk of rear-end collisions. One owner notes the system's radar becomes obstructed by snow and ice, rendering it inoperable during adverse weather conditions. Additionally, there are reports of the adaptive cruise control behaving unpredictably, such as abrupt acceleration after braking when another vehicle changes lanes. These incidents typically occur at higher speeds, around 60-70 mph, and suggest potential safety implications for drivers and passengers.
Owner complaints4
VEHICLE SPEED CONTROL
Owners of the 2023 Hyundai Sonata report issues with vehicle speed control, including unintended acceleration and loss of acceleration. Complaints frequently mention sudden acceleration when parking, leading to crashes, as well as hesitation and deceleration while driving, sometimes resulting in a complete loss of speed. These issues are reported both shortly after purchase and after several weeks of driving. Two incidents involve crashes with one resulting in two injuries, highlighting significant safety implications. Buyers should be aware of these potential issues, particularly regarding the vehicle's response to accelerator input and the effectiveness of the braking system.
Severity signals: 2 crash, 0 fire, 2 injury reports
Owner complaints2
STEERING
Owners report issues with the steering and associated safety features in the 2023 Hyundai Sonata. Complaints frequently mention a loss of power steering and other safety features, such as Lane Assist and Forward Collision Avoidance, particularly in cold weather. One owner describes the problem as recurring and resulting in swerving into oncoming or neighboring lanes. Another owner reports engine shaking and loss of power at around 9,500 and 19,000 miles, leading to an inability to steer the vehicle. Both instances involve safety concerns, with the vehicle becoming difficult to control, and the issue remains unresolved by the dealership.
Owner complaints2
SERVICE BRAKES
Owners of the 2023 Hyundai Sonata report frequent brake issues, with one owner detailing the need to replace brakes four times within the first 40,000 miles. This owner also mentions replacing rotors once and resurfacing them, indicating potential premature wear of brake components. Another issue noted involves the calipers, which are on backorder, suggesting possible supply challenges. While no crashes or loss of control are reported, the repeated need for brake replacements could imply maintenance concerns for potential buyers. These complaints highlight the importance of monitoring brake system components closely when considering a used 2023 Hyundai Sonata.
Owner complaints2
STRUCTURE
Owners of the 2023 Hyundai Sonata report issues with water entering the rear left door and becoming trapped between the lower door seals. This results in water pouring out when the door is opened. Complaints frequently mention that this condition is described as common to the model by dealers, and attempts to address the issue with Hyundai have been unsuccessful. There are safety concerns noted, particularly the risk of ice formation in colder climates, which could prevent the door from opening in emergencies. This issue appears to be recognized by multiple owners and is acknowledged by both dealers and Hyundai representatives as a recurring condition.
