2021 CHEVROLET SUBURBAN Wheels Problems

[XXX] DIAGNOSE UNITS: 1.00 TECH(S) :1244 CUSTOMER STATES VEHICLE IS RUNNING ROUGH, MAKING A NOISE WHILE DRIVING COMING FROM THE REAR, PLEASE CHECK & ADVISE, FEELS LIKE RIGHT REAR WHEEL IS RUBBING checked over and found noise to be coming from rear differential. found bulletin #21-NA-028 for rear axle moan type noise on turns. followed service procedure per bulletin and drained and refilled rear diff service multiple times to correct customer concern. test drove vehicle after repair and noise is no longer present at this time. May be necessary to Drive vehicle multiple times to work lubricant into clutch pack. may require 1 more drain and refill if noise returns. If hesitation is still felt, recommend getting appointment set up for transmission diagnostic ARTS - - 0B # 1 - QTY - - - FP - NUMBER - [X] [XXX] -DESCRIPTION OIL 8.800 LIST PRICE-UNIT PRICE- $58.43 $58.43 JOB #...

The 22 inch rims on my vehicle are cast aluminum I'm assuming. I have had several cracks causing me to rapidly loose air on the tires while driving at highway speeds. I have had three cracks in different rims within the last week and have had the rims repaired twice. The vehicle has 75k miles on it. This is a major concern and safety issue. I've never seen that many cracks happen at once. Some say well your hitting potholes but that isn't the case here.

Rims keep cracking on the inside where the tire is sealed. This has happen a total of three times to both front and rear passenger side. Tire pressures are 36psi as recommended by manufacturer. No major pot holes or other road hazards have been hit.

With cruise control activated, at least 10 times since I bought this expensive vehicle the automated emergency braking activated at highway speeds - causing the vehicle to full brake without warning and nearly causing an accident each time (handling risk and risk of being impacted from behind by a following vehicle). I have formally reported this issue to dealers in MN and MT, and they only thing they said was they could not duplicate the condition during brief test rides and this was not a know problem. I personally know this was a known problem and GM did a safety recall for this condition on MY15-20 Suburbans. This condition is definitely an unreasonable risk to motor vehicle safety. In additional, the original tires supplied by GM (Firestone) failed under normal driving conditions after only about 35,000 miles, and both GM and Firestone denied there was any warranty coverage. Since then,...