Problems with 2007 Cadillac STS ELECTRONIC STABILITY CONTROL

Tl* the contact owns a 2007 cadillac sts. the contact stated that while driving at approximately 50 mph, the stability system active warning light illuminated and the steering wheel became difficult to maneuver. in addition, the vehicle independently decelerated. the failure occurred on multiple occasions. the vehicle was taken to the dealer, who diagnosed that the rear passenger side wheel speed sensor and various wires needed to be replaced. the vehicle was repaired but the failure recurred. the manufacturer was notified of the failure. the approximate failure mileage was 50,000.

Making a right turn onto a road from a stopped position results in activation of stability control and complete loss of power for 1-2 seconds. without any change in pressure on the accelerator, the vehicle speeds up. this has happened repeatedly. *tr

About 30% of the time i am making a hard right turn, the vehicle stability system kicks in on my car. this happens on dry pavement. the car slows and there is no acceleration for about 2 seconds. *tr

I was leaving greenville, s.c.and the left side brakes lock and pulled me into the left lane of traffic and i took my foot off the gas and the car free rolled for a short distance while i got back in my lane. i reapplied the gas and got back up to twenty-five mph and the right side brakes locked. i was only going approximately twenty five mph when all of this occurred. i stopped in the emergency lane and got out of the car. i saw nothing visibly wrong and started up the emergency lane and the brakes continued to lock as i was going up the emergency lane. i got the car to the first exit and took that exit. i parked the car in a private business and had it towed from there. *tr

This one seemed to be the most dangerous. on random and unpredictable occasions while making a sharp turn on dry pavement at relatively low speed at approximately 20 mph the stability system active message or traction active message would be displayed on the driver information center and the car would lose power to all 4 wheels and slow almost to a stop even while the gas pedal was depressed - it would seem to stall in the middle of an intersection! on may 26, 2007 r.c. olsen cadillac replaced the yaw sensor to correct the problem , but evidently that did not fix the problem which i continued to experience at random, infrequently, and unpredictable occasions. there seems to be a slight looseness in the steering when turned which usually occurs at low speed (less than 5 mph) at the beginning of a sharp turn with pressure applied to the steering wheel (most often occurs when steering wheel is pulled toward the driver). it feels like a 1/8 inch "slip" or "jerk" in the wheel. the occurrence is most noticeable when turning while backing out of a parking space or when making an initial turn after being stopped. it happens in forward and reverse but i seem to notice it more in reverse because that is when i seem to be putting rearward pressure on the steering wheel while turning. i suspect that the problem may be somehow related to the electronic adjustment of the steering wheel. note however that on my most recent service visit on june 27, 2007, woodward cadillac of andover, ma found that the front end was severely out of line and subsequently performed an alignment on the car which did not correct the problem but seemed to slightly improve it - that leads me to believe that the problem may be originating from the front end or rack. i have brought the vehicle in for service on this issue 5 times all with the result that the technician could not duplicate the problem and therefore could not fix it. the steering wheel was misaligned , off center. *ak