Navigational (global Positioning System) Gps problems of the 2016 GMC Yukon

Transmission went out very early. Had to get it replaced whenever I reverse. I have to really smash on the break in order for it to stop if it does stop so somethings wrong with the breaking whenever I hit a bump the left side suspension feels like I’m a lose control and sometimes my radio works and sometimes it doesn’t I’ve been trying to work with dealers I have extended warranty on it. They’re saying it’s not covered something about the brake pump is covered, but the belts are not. The transmission was put in only because it left me stranded. Otherwise I would’ve been stuck paying for that. The dealership actually helped me with that. My gps turns on and off sometime. I’m not sure if it’s electrical.

The antenna on the Yukon gets water in it when it rains. It has messed up my gps system and my on star system is not working. It has leaked into the SUV. This happens every time it rains.

Gps is not working. Antenna.

Water leak due to bad front windshield seal, water leak through gps antenna, four wheel drive module was bad, dvd player stopped working, and lastly a horrible vibration that occurred around 77-83 mph. To the point the vehicle did not feel safe to handle. Trim on the b post kept coming loose. This all occurred in over a years period of time. This was my second vehicle because I traded in my 2015 tahoe because it was having many of the same issues and more. Gm did repair all issues other than the shaking, they wanted me to buy tires and after reading other complaints on the shaking I refused, the tires only had 25,800ish miles on them.