NHTSA complaint #11749685

Owner complaint summary

I brought the car to the dealership on June 24th about the car jolting forward and a this coming from the bottom of the car . The car jolts forward when in drive I have 10k miles now after he dealership put 588 miles on my car . Got my car back on July the 20th . I was told that my engine misfired and they had to replace spark plugs on a new car I purchased this car brand new . Less than two years having it my engine misfired and they replaced spark plugs .no warning lamps which is deeply concerning as this issues had been happening for awhile with no warning on dash car jolting forward thudding from the bottom of the car . Extremely dangerous you could hit the back of someone’s car or something . Extremely unsafe . The issue was reproduced by the dealership .i strongly suggest this be looked into to a car jolting forward is extremely unsafe for the roads .