The traffic navigation system requires that the driver constantly take their eyes off the road. There is no audible warning about delays and the map only show interstate highways with red or green road markers. Other affected streets are on a list that one has to read off the screen and constantly check. This is a major hazard and a setup for accidents.

- Weston, MA, USA

The vehicle center display does not work reliably. Most concerning to safety is the fact that this renders the reverse camera inoperable. Other things that don't work include bluetooth, radio, on star, controls for the vehicle setup and charging parameters, air conditioning, energy usage display, and so on. After several service visits and calls to GM, they determined that if you leave a phone plugged into the usb cord for the audio system, and power the car off without first unplugging the phone from the charger and even the charger cord from the usb port (with no phone plugged in) or else the next time you start the car the screen and functions on it will be inoperable until the car is powered off for several minutes. Whether or not I unplug my phone when I turn off the car should prevent the backup camera from functioning nor the details about electric car charge usage. GM has told me there is nothing more they can do, that's just how it works.

- Waynesboro, VA, USA

Headrest juts out too far forward. This seems to be a problem on all newer cars. My wife can not sit straight up in the seat with her back against the seatback without having the headrest pushing her head downward. We tried to move the headrest up and down with no resolve. She is about 5 foot 7 inches with very good posture. The headrest seem to put here head in an unnatural position.

- St Paul, MN, USA