Two problems related to vehicle shudder have been reported for the 2011 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Sonata based on all problems reported for the 2011 Sonata.
In motion car surges and jerks forward randomly. There is a gas smell when driving and car begins to shake when engine is engaged. Backup camera will not engage at random times or car will not turn on with push to start system. Diagnoses engine and electrical issue but Hyundai won't include in their recall campaign.
The car is a year old. As the passenger was turning left traveling approx 25-30mph the car started to shake violently and then the wheel came off the front passenger side. The control arm assembly failed allowing the whole wheel/drive assembly to come off slamming the front right side of the car down, yanking the car toward oncoming traffic.