Two problems related to assist have been reported for the 2021 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Hyundai Sonata based on all problems reported for the 2021 Sonata.
Engine makes rattling and knocking noises. Transmission hesitates and jerks suspension front struts and rear shocks are bad. Possible the isolators. Having horrible back pain when riding in car. Starter intermittently doesn't work lane keep assistance goes over small bump in road will make car drive in opposite lane into on coming traffic. Took car to tameron Hyundai in birmingham on the 29th of December 2025. Told them everything thats going on with the car. They did nothing about any of the issues. Car has 55,000 miles on it as that is when all problems have incurred. 60000 mile warranty expires in February of this year.
Unknown.