2012 Chevrolet Sonic suspension problems

We purchased a new 2012 chevrolet sonic sedan. The first time that we drove it at highway and interstate speeds we noticed that the vehicle was very difficult to keep in the driving lane. We returned to the dealer and after a new set of tires, then later a new set of larger wheels and tires there has been some improvement in handling. I am 55 years old and have driven many different cars and trucks and this is the worst driving vehicle ever. This car is dangerous to drive and something needs to be done about it.

Tl* the contact owns a 2012 chevrolet sonic. While driving 5 MPH, the front driver side stabilizer shaft link joint was lose at the bar. The vehicle was taken to the dealer where the technician replaced the stabilizer shaft link three times. The failure recurred. The manufacturer was notified of the failure. The approximate failure mileage was 22,272.