When im going forward or reversing the car automatically slams on park brake

- Greater St. Louis Area, MO, USA

Safety hazard: Defective pirelli tires; pzero nero; within a timeframe of only 15K miles 5 pzerro nero tires needed replacing due to tire pulling away from rim, then bulging and final sidewall would blow out. Regardless, if the car is in motion or stationary this will occur with each tire. First 3 tires were covered under the extended warranty that I purchase with pirelli. Tire 4 & 5 was rejected to be replaced by pirelli until the tires actually blow out. Two very large bulges in the front & rear drivers side tires. My car was at the dealership for service (cue was replaced malfunctioned) and I was notified that pirelli rejected replacing the tires even though I purchased the warranty. I refused to drive the car out of the dealership with 2 two tires that have a bulge at the sidewall ready to blow out at anytime. The dealership provided me a loaner car while I filed a complaint with GM concerning these defective tires that are on these Cadillac's. GM's customer service team is managed poorly to say the least. I got a case# 8-3230449470 and I was told there will be resolution within 48 hrs, that was on Aug 31, 2017. It is now Sept 7, 2017 and I have not heard from the team and it is not resolved. My car still remains at the dealership unable to drive. Since I did not receive any service from the customer service team I raised the issue to the GM executive service team. Another case# 8-3253040006. I advise the team of the safety hazard of these tires. I will not endanger any of my passengers or anyone on the road with these defective tires that will blow with less than 3K on them. I have researched these tires and customer complaints all over the internet. Innocent people are driving on these tires on the expressway going 85 mph not knowing that a tire or tires will have a sidewall blow out. I have taken a stand with GM by not driving my car.please resear

- Highland, MI, USA

When turning the steering wheel in either direction, left or right, of the vehicle, there is a loud metal-on-metal noise. The vehicle has been taken twice to mcguire Cadillac where I was told that there was "no fix at this time." I have contacted Cadillac headquarters numerous times and, unfortunately, no assistance has been given. On December 30, 2015, while driving 60 mph on the right lane of a highway, I suddenly lost control of the vehicle and the vehicle veered across to the left across three lanes on the highway. The vehicle did a 360 coming to rest facing oncoming traffic where I had no control of the brake or gas pedals in the vehicle. After coming to a halt, I was then able to gain control of the vehicle. It was a very scary situation.

- Staten Island, NY, USA