2017 CADILLAC XTS Suspension Problems

Rear suspension not holding air. Rear suspension went flat while driving in highway. Had to pull over due to sudden rough ride

With no warning and only 45000 miles on car rear air suspension motor failed on expressway! I quickly noticed my steering anti red seemed out of control! I quickly pulled over not knowing what was wrong. My husband came to meet me and immediately asked what was in my trunk! I told him nothing he said my back tires were 1/4 inch from hitting wheel well. The rear end was so low if I did not pull over and hit a bump or rock my tire would of hit top of body of car! I would of lost control of car! Thank god I pulled over when I did it could of killed me or someone else in road! I contacted GM within hrs of it happening! As I looked it up on line it said some of my make and model were recalled and safety admin was looking into...

2017 XTS, REAR SUSPENSION AIR BAGS FAIL WHILE DRIVING, STOPED AND EVEN PARKED. WHILE DRIVING AT HIGHWAY SPEEDS OR JUST PARKED REAR END WILL DROP UNEXPECTEDLY. THE REAR END WILL START TO BOUNCE WITH JUST THE SLIGHTEST UNEVEN ROAD. THIS CAUSE THE DRIVER TO HAVE TO FIGHT TO STAY IN CONTROL OF CAR AND SLOW DOWN VERY FAST. WITH TRAFFIC BEHIND IT CAN CAUSE SOMEONE TO HIT YOU FROM REAR. CAR HAS BEEN TO DEALER SEVERAL TIMES AND CADILLAC SAY EVERYTHING IS NORMAL. HOWEVER AFTER LEAVING DEALER IT CONTINUES TO HAPPEN. CADILLAC HAS KNOW ABOUT THIS FOR MANY YEARS AND IGNORES THE PROBLEM ON THE XTS. THE REAR END WILL DROP TO A LEVEL THE YOU CAN NOT EVEN TOUCH THE TOP OF THE TIRE OR EVEN THE MIDDLE. ALMOST TOUCHING THE GROUND AT REAR. FIRST TIME WAS APRIL 2019 RIGHT AFTER WARRANTY WAS OUT. THE SAID I NEEDED SHOCKS...