[pcguru2000]

At certain speeds, there's panels or something behind the dash of my 2017 86 that start to oscillate/buzz. All I have to do is change my speed a little and it stops. Is this something the dealership can fix, or is this something that is normal for this car. I've only got about 500 miles on it so far. Certain frequencies from the stereo will also start to make the same thing start buzzing.

2nd question. My torque coolant temp at idle in a parking lot is 200F/93C. Is this normal or should it be running cooler?

3rd question. My wife also owns a Subaru forester xt with cvt tranny. She has Hill assist. I have an auto tranny on my 2017 86. I did the procedure for turning on hill assist but it doesn't come on. According to my dealer sticker, and the toyota website, Hill assist is also available on an automatic transmission. It would be nice not to chirp the tires when switching from the brakes to gas on a 30 degree incline. Supposedly the brakes are automatically activated for 3 seconds, making it convenient.