2019 Hyundai Sonata Reliability Score & Common Problems

Owners of the 2019 Hyundai Sonata frequently report issues with the electrical system, particularly concerning the hybrid power system and starting mechanism. Symptoms include unexpected shutdowns of the hybrid power system while driving, often without warning, and starting failures where the vehicle does not start despite multiple attempts. These issues appear at various mileages, with some occurring under 50,000 miles. One report describes a fire occurring immediately after attempting to start the vehicle, highlighting a significant safety risk. Additionally, there are complaints about the blind-spot warning system malfunctioning, which can lead to an inability to remove the key from the ignition. These patterns suggest potential reliability concerns for used car buyers, especially those considering vehicles with higher mileage.

Owners of the 2019 Hyundai Sonata frequently report issues with air bags failing to deploy during crashes, as evidenced by four complaints involving crashes where air bags did not activate, resulting in three reported injuries. Typical symptoms include severe front-end damage without air bag deployment, with incidents occurring at varying mileages, including as low as 3,500 miles. Additionally, some owners report air bag warning lights illuminating inconsistently, sometimes linked to the use of cushions or seat belt adjustments. In one instance, air bags deployed unexpectedly without a crash, suggesting potential sensor issues. These patterns highlight significant safety implications, particularly in crash scenarios where air bags are expected to deploy.

Owners of the 2019 Hyundai Sonata frequently report excessive oil consumption, with some vehicles consuming up to 3.5 quarts of oil within a short time frame, often under 1000 miles. This issue is linked to symptoms such as engine hesitation, stalling, violent shaking, and a significant risk of engine failure, which can occur during driving and lead to loss of power or control. Additionally, some complaints mention transmission issues, including a persistent whining noise and the presence of metal fragments in the transmission fluid, despite multiple replacements. The reported problems often begin within the first year of ownership or shortly after purchase, affecting vehicles with varying mileage. Safety implications are significant, as engine and power loss can occur unexpectedly, posing a risk during highway driving or in traffic.

Owners of the 2019 Hyundai Sonata frequently report issues with excessive oil consumption, often requiring oil to be added multiple times between scheduled changes. Common symptoms include abnormal rattling or knocking sounds and the illumination of the check engine light. These problems are typically reported around 23,000 to 89,000 miles. Some complaints also highlight engine gasket faults leading to oil leaks. A significant safety concern is noted in one report where an engine issue resulted in a vehicle fire after smoke and a burning oil odor were detected, leading to the vehicle being destroyed. These patterns suggest potential reliability concerns for prospective buyers, particularly regarding engine maintenance and safety.

Owners of the 2019 Hyundai Sonata report several steering-related issues. A common problem involves the steering wheel becoming stuck in a turned position and requiring forceful correction to re-center, often accompanied by excessive tire wear and occurring more frequently in hot weather. Another frequent issue includes grinding noises when turning the wheel. Additionally, some owners experience sudden loss of power steering at highway speeds, necessitating replacement of multiple components like the power steering ECU and sensors. Safety implications are noted, with one report detailing a loss of control due to power steering failure and another involving a crash following vehicle theft facilitated by the absence of an engine immobilizer. These issues are reported across various timelines, with repeat occurrences suggesting a persistent problem.

Owners report issues with the seat belts in the 2019 Hyundai Sonata, primarily concerning the driver's side belt not retracting properly and failing to latch securely. Complaints frequently mention that the seat belt strap does not retract after being removed and that the latch sometimes pops out, with one incident involving a crash where the seat belt did not retract, resulting in injuries. The problems are noted at mileage as low as 12,246 and beyond 60,000 miles, indicating no specific mileage threshold for the onset of these issues. The safety implications are significant, as one report includes a crash with injuries due to seat belt failure. Buyers should be aware of these potential seat belt malfunctions and consider inspecting this component when evaluating the vehicle.

Owners of the 2019 Hyundai Sonata report issues related to vehicle speed control, with symptoms including unexpected acceleration and deceleration. Complaints frequently mention the activation of warning lights such as the HEV, engine, and battery lights, and describe instances where the car does not brake properly and may shut off while driving, particularly on highways. These issues often result in the car entering a "temporary engine protection mode," leading to a significant loss of power and speed, which owners find unsafe. The timeline for these problems ranges from shortly after leasing the vehicle, indicating potential early onset. The described symptoms suggest a safety risk, as they can lead to a loss of control and near-miss situations on the road.