Navigational (global Positioning System) Gps problems of the 2015 Chevrolet Tahoe

I purchased this vehicle a few weeks ago. I was told by the salesman that everything worked in the car. I test drove it and the lane departure warning was working so I assumed the forward collision would be working. In real life driving, I have nearly run in to numerous cars as the forward collision does not work. In one instance, someone slammed on their breaks, my collision didn't alert me, thankfully I saw it, but I had to swerve off the road to keep from hitting them. In addition, the cooling seats work, but the heated seats do not work on either side of the front seats. Lastly, I have discovered that my navigation system does not work. I can't get it to change to my current location and the gps is x'd out. This is what I have so far, but sadly, I feel more things are going to happen with this vehicle. I am working with the dealership on the forward collision and heated seats, but don't know if I will get anywhere with them. They have said they will not fix the navigation system, which is affected by the cal (calibration) error message on my screen.

Onstar antenna, gps, microphone failure.

I own a 2015 Tahoe that I really want to like, but the problems have been one after another! I have had my window panels replaced 3 times. My dvd player stopped working. My a/c just had to be repaired for a leaking condenser, and now my back hatch won't open due to the motor going out. Oh. . . And I almost forgot I have been without onstar/ gps for about a year now because that is also broken.

Tl the contact owns a 2015 Chevrolet Tahoe. While driving, the contact was alerted that there was a gps malfunction. The contact found a service bulletin for the failure that expired in 2017, but the contact was never notified. The bulletin indicated that the manufacturer was repairing the gps at that time. The contact did not feel responsible for the repair cost. Weseloh Chevrolet (5335 paseo del norte, carlsbad, CA 92008, (760) 208-1943) was contacted and claimed to know nothing about the service bulletin. The manufacturer had not been contacted. The vehicle was not diagnosed or repaired. The failure mileage was 85,000.