2011 Buick Lacrosse Engine cooling Problems

“The 2011 Buick Lacrosse with a 3.6 had popping sound upon starting when car was 5 days old; brought to dealership and was asked if I was sure it was my car. They checked vehicle and could find nothing wrong. The problem is intermittent. It popped upon starting 8-9 more times in 3 weeks. Upon leaving a restaurant, the vehicle would not start & had no power; onstar was of no use. Dealer had car towed to them; kept car for 10 days and put 160 miles on it and I was told that they reprogrammed 3 computers but could not replicate the popping sound. …”

“The contact owns a 2011 Buick Lacrosse. The contact stated that the vehicle would stall while driving at various speeds. The vehicle was taken to an authorized dealer where they were unable to diagnose the failure. The manufacturer was not notified. The vehicle was not repaired. The failure mileage was 4,000 and the current mileage was 4,300.”

“2011 Buick Lacrosse. Consumer writes in regards to engine malfunction. The consumer stated she was driving down the road, when the vehicle shut down, the dashboard read, engine is losing pressure. The vehicles speed dropped to 10 MPH and began shaking out of control. The consumer stated the incident happened a total of 4 times between january and february. The vehicle was taken to the dealer, where the dealer stated the water pump and balance shaft chain needed to be replaced. On february 2, 2013, the dealer only found a half quart of oil in the vehicle. …”

“The contact owns a 2011 Buick Lacrosse. While driving at various speeds, the check engine light illuminated on the instrument panel. The vehicle was taken to the dealer, but the failure could not be diagnosed. The contact stated that the error codes were removed from the vehicle; however, the failure recurred. The vehicle was taken to dealer where it was diagnosed that the catalytic converter failed and needed to be replaced. The vehicle was repaired. …”

“The contact owns a 2011 Buick Lacrosse. The contact stated that the transmission was slipping. The failure had progressively gotten worse and the vehicle would violently jerk into gear on an intermittent basis. The vehicle was taken to an authorized dealer where the contact was informed that the transmission was not the cause of the failure, but rather the programming of the computer. The dealer stated that the computer was sending incorrect signals to the transmission, causing the failure. The manufacturer was aware of the failure, but there was no remedy for the computer system available. …”