2016 Buick LaCrosse Power Train

Cars shudders 20-30 MPH. Started last year, I needed to get my wife for cancer treatments. Basically, shifted the car manually.

The contact owns a 2016 Buick Lacrosse. The contact stated that when she started her vehicle, the automatic collision unavailable, and oil leak warning message illuminated. The contact stated the warning lights were then unilluminated. The contact stated that the following day while the vehicle was parked and turned on, the power steering warning light illuminated and the steering wheel seized. The contact stated she called a tow truck to tow the vehicle to the local dealer and while she waited she was able to steer the steering wheel; however, she did not feel safe driving the vehicle and it was then towed to a local dealer. The dealer informed the contact that the diagnosis was that the vehicle needed to update the power control module(PCM) software. The vehicle was repaired. The manufacturer was made aware of the failure and informed the contact the failure was not covered under the warranty. The failure mileage was 92,968.

AT 25 - 30 MPH AND AT 45 - 50 MPH THE CAR SHAKES VIOLENTLY. I TOOK IT TO THE DEALERSHIP FOR A DIAGNOSTIC. THEY SAID THEY KNEW EXACTLY WHAT IT WAS. I NEED A NEW LOWER AND UPPER TRANSMISSION. THAT IS THE RECOMMENDED FIX. THAT IS SOMETHING THAT HAPPENS TO CHEVY TRANSMISSIONS AND THE COST IS $5400. IT SEEMS TO ME THAT IF THIS IS SOMETHING THAT GOES WRONG ALL THE TIME, THAT'S A PROBLEM THAT I DID NOT CREATE. MY VEHICLE IS WORTH LESS THAN THE COST OF THE FIX AND I STILL OWE MORE THAN TWICE THE COST OF THE FIX.

WHILE DRIVING AT HIGHWAY SPEEDS (65+ MPH) THE INFORMATION CENTER WILL DISPLAY 'REDUCED ENGINE POWER' AND CAR WILL DOWN SHIFT AND ONLY REACH 45 MPH. CAUSING CLOSE TO REAR-END CRASH. YOU HAVE TO LEAVE THE HIGHWAY TRAFFIC IMMEDIATELY AND TURN OFF ENGINE. RE-START ENGINE AND CONTINUE DRIVING. IT HAS HAPPENED TWICE NOW. SEEMS LIKE A SOFTWARE PROBLEM. *TR