Component or System That Failed: After a routine oil change at Rick Case Hyundai of Roswell on Saturday, [insert date], my 2022 Hyundai Tucson began shaking significantly. The dealership later informed me the issue was related to a **malfunction in the fuel injector system**. The vehicle is currently at the dealership and available for inspection upon request. How Safety Was Put at Risk: The shaking occurred immediately upon driving away from the dealership and worsened rapidly. I was concerned about losing control of the vehicle orengine stalling while driving, which could pose a danger to myself, passengers, and others on the road. I returned the vehicle immediately to avoid further risk. Reproduced or Confirmed by Dealer or Service Center: Yes, the problem was confirmed by the dealership (Rick Case Hyundai of Roswell). They diagnosed the issue as being related to fuel injector failure. I am waiting on a written report and confirmation of warranty coverage. Inspected by Manufacturer, Police, Insurance, or Others: At this point, the issue has been inspected and diagnosed by the Hyundai dealership. It has not been inspected by police, insurance, or any other outside parties. Warning Lamps, Messages, or Other Symptoms Before Failure: Warning Lamps, Messages, or Other Symptoms Before Failure: Yes, the check engine light turned on shortly after I noticed the vehicle shaking. The symptoms began **immediately after the oil change**, and the engine light appeared as the shaking worsened. There were no prior warning signs before this incident. This suggests a sudden failure, possibly related to the fuel injection system*, as diagnosed by the dealership.