NHTSA Complaint #11532192 — 2019 CHEVROLET COLORADO

I recently purchased a certified 2019 Chevy Colorado z71 on June 26, 2023 from Healey Chevrolet in Poughkeepsie N.Y. while test driving the vehicle I brought to the attention of the sales person that there was a vibration in front left wheel at which time the dealer rotated tires and realigned the vehicle, shortly after picking the vehicle up while driving home the vibration started again and progressively got worse the more I drove as well as the steering becoming very stiff and took effort to turn wheel. I contacted dealer took vehicle back at which time the salesperson test drove it and agreed there was a problem the dealer then replaced the rack and realigned shortly after picking vehicle up while driving the problem started again and got worse the further I drove now vehicle has a mild vibration in front left when driving between 40-50 mph contacted dealer spoke to service manager who stated he wasnt aware of any vibration I explained it was coming back on Monday July 17, 2023 for paint touch up to please see whats going on, later same day took truck to go to store while driving the steering again became very tight as I was turning into parking lot power steering went out almost causing me to hit another car contacted dealer vehicle towed to dealer. was contacted by Ray from service who told me no codes were found and could not duplicate issue said tech drove it and found no vibration he asked for permission to drive home to check it I explained to him I have 2010 silverado 1500 with 200,000 miles that I plow with that steers better than this I also explained my brother owns exact truck same year every except his more miles and steers perfect, I also mentioned that a friend that is a gm tech said theres tsbs on these trucks for this issue he stated he had no knowledge of such which is strange since I clearly see them online. I am afraid to drive it. something isnt right. I love truck otherwise just want it fixed.