When exiting a paking lot, the Vechile did not Warn/Detect or di not Stop, while there was a 2 feet rock in the front of the bumper, whcih is 2 feet by 2 feet. The big rock hit exactly between the 2 sesonrs and no waring or didnt stop the vechile from colliding which damged the whole front bumper. I had my 2 kids and wife in the vechile, the only concern, I have is my wife drives the vechile all time, if it did not detect/warn/stop before hitting a big rock, what is the garentee it will save us from any major accidents. I took to the delar ship, havent got an appoitment for 2 weeks just to look at the sensors and they say to call Hundai Coustomr service and after 2 weeks of taking to Hundai customer service they are asking me to deal with the delaer ship. and they are pointing to each other while I get no response. and all they say is there is No way to pull the sensor information prior to tha accident.