general problems of the 2018 GMC Terrain

My husband and son were involved in an almost fatal accident on 07/08/23 in our 2018 Terrain. My husband described that the vehicle spontaneously veered to the right uncontrollably, he was unable to steer to correct the vehicle, unable to brake, they went airborne, hit several poles and a transformer, rolled and flipped several times. All the airbags deployed. After the accident, I found a recall notice from back in 2017, I believe, regarding the drive train. My husband was extricated from the vehicle. My son wasble to cut the seatbelt and crawl out the window. From what my husband explained (he was the driver), this sounds like what they experienced during the collision. I never received a recall letter from gm as this is something I would of taken care of and have got repaired. Please see the photos and the recall I found. Please let me know if there is anyone else I need to contact regarsing this collision. My car was almost paid off. My husband and son could of lost their life. Please advise. Thank you!.

Multiple warning lights are appearing at once (automatic brake assist, forward collision assist, parking brake released) when the car is put in reverse, the radio turns off for a brief moment and the steering assist warning shows on the dash. The steering wheel snatches back in the opposite direction causing a safety concern. The car also completely cuts off after the auto-stop takes effect at red lights causing me to have to pump the brakes at least twice to re-ignite and be able to accelerate.

Car gives a "power steering reduced, drive with care" message after turning the wheel one direction and braking simultaneously. After message is displayed, power steering is no longer available, and this can happen while driving around a curve. Once car is powered off for longer than 1 minute, can turn back on with no problem, but problem can come back just the same. Took to GMC dealer. They recalibrated my car, but problem came back 1 month later. They said they can replace the whole electric steering system, but that may not fix the problem, as they do not know what the real problem is. Vehicle was purchased used with 50k miles.

The vehicle was in motion making a right hand turn and in the turn the operator lost control of the vehicle causing her to strike a curb then head for oncoming traffic. When it was all said and done it looked like the ball joint had failed causing the loss of control. A bystander said he heard a loud pop and looked up and witnessed the vehicle slide into the curb and then see the front left tire lock up and the vehicle come to a stop.

While driving on a snow- covered road with any amount of snow, the snow gets packed inside of the wheels and throws the wheel balance off causing the steering wheel to shimmy badly at highway speeds. I have to remove the snow pack evvery day, and I believe that this is an aerodynamic design flaw with the wheels where the snow doesn't get blown out of the wheel while the car is in motion.