2016 GMC YUKON DENALI Steering Problems

WE WERE TRAVELING IN OUR YUKON WHEN ALL POWER WAS LOST TO THE VEHICLE. THE STEERING WHEEL LOCK FUNCTION ENABLED BEFORE WE WERE STOPPED. SINCE THERE WAS NO POWER AND IT IS PUSH BUTTON START, THERE WAS NO WAY TO CONTROL THE VEHICLE. OUR DEALER SAID TO THEIR KNOWLEDGE THERE IS NO WAY TO UNLOCK THE WHEEL. LUCKILY OUR CHILDREN WERE NOT IN THE VEHICLE AND NO ONE WAS INJURED. THE DEALER SAID THE NEGATIVE BATTERY CABLE IS FULLY INTACT, BUT HAD FAILED INTERNALLY. WHAT IS MORE CONCERNING IS THE FACT THERE IS NO WAY TO UNLOCK THE WHEEL TO STEER IF THIS HAPPENS. EVEN AT 65 MPH.

TL* THE CONTACT OWNS A 2016 GMC YUKON DENALI. WHILE DRIVING APPROXIMATELY 55 MPH, THE STEERING BECAME LOOSE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO NIMNICHT BUICK GMC LOCATED ON, 11503 PHILIPS HWY, JACKSONVILLE, FL 32256 JACKSONVILLE FL, WHERE IT WAS DIAGNOSED THAT A BOLT NEEDED TO BE TIGHTENED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT NHTSA ISSUED RECALLS. THE FAILURE MILEAGE WAS APPROXIMATELY 45,000. THE VIN WAS NOT AVAILABLE.

SINCE THE DAY I PURCHASED THIS 2016 GMC YUKON XL DENALI THERE HAS BEEN A VIBRATION IN WHAT I THINK IS THE PASSENGER REAR END. I'VE TAKEN IT IN 3 TIMES AND EACH TIME THE DEALER AND THE GM REPRESENTATIVE SAY IT IS "WITHIN SPEC." THIS PROBLEM HAS PERSISTED. THE VEHICLE IS NOW ALMOST UN-DRIVABLE DUE TO THE SHAKING. IT AFFECTS THE STEERING WHEEL AT ALL SPEEDS. THIS HAPPENS AT ALL SPEEDS ON ALL TERRAINS. THIS HAPPENS WHEN THE VEHICLE IS COLD AS WELL AS WARM/HOT. THE VEHICLE WILL SOMETIMES JERK TO THE LEFT OR RIGHT WHEN THE SHAKING GETS REAL BAD. THIS VEHICLE IS BECOMING DANGEROUS TO DRIVE BUT I HAVE TO USE IT. I AM NOT THE ONLY ONE WITH THIS ISSUE AND WOULD APPRECIATE SOME HELP.