 I installed a higher cranking amp battery and haven't replaced any lights since. At 99400 miles the rear U-joint caused vibration at higher speeds then at low speed. It was replaced fully under warranty. In fact, KIA replaced the total driveshaft and support bushing with all related parts free. These reports stating bad warranty are incorrect. KIA is very good! Another car with the same equipment would cost over $30,000.00 compared to $20,000.00 for a new 09 Sorento. Great car fun to drive sure feeling great pickup. Not easy on gas though. Only draw back.