Yesterday morning had to jumpstart the car 2017 Optima. Thought I might have left the lights on by accident...ran around town and had no problems. Went out this afternoon to go and car wouldn't start. Called dealer and battery was only warrantied for 36,000 miles or 3 years. Figures i have 37,000 miles on it and my mom bought it in September of 2018. Has anyone had to replace this battery? He wasn't sure if our local auto parts will have it and the dealership is an hour away. Sigh. Just had a winter snow storm and travelling is not advised.