Navigational (global Positioning System) Gps problems of the 2018 Toyota Camry Hybrid

I contacted Toyota regarding a problem with my scoutlink gps. I was driving to new york and the gps suddenly stopped working. The display showed the car to the right of the path then to the left then back again, then told me to make a turn. I was going at a high rate of speed as you do on the turnpikes and parkways. There was no way for me to safely stop to troubleshoot the scoutlink. It takes a great deal of coordination to even hook it up, but then for it to stop working when you are in congested hi speed traffic is a safety issue for me and my family as well as others on the highway. Luckily the passenger was able to get google maps on the phone to safely guide us to our destination. When I reported the issue to Toyota they suggested I go to the dealership. The dealership agreed there was a problem, and if I had an apple phone, they had a solution. But alas I have an android, so they tried to get me to trade in my car with a 2019, that has a different system in it. . . . . A working gps I hope! they wanted me to pay an additional $14,000. Not a safety issue, but certainly not ethical from my viewpoint. I then reported the issue to telenav, they produce the scoutlink gps. They told me I needed to talk with Toyota. I explained I was there already, my software was up-to-date and they could not figure out the problem and the only solution was to purchase a new car or at my expense install an after market system. . Telenav told me he could not help and has closed the case file. I just think someone should be aware of the safety issue involved here and how Toyota is not standing behind its product or its customer. I purchased a garmin. I was unable to attach mp4 videos.