1. Press ESC
2. Go to Controls
3. Make sure it's on the Keyboard section
4. Click the drop-down and select Vehicle Movement
5. Bind your mouse left & right to 'Car Left' and 'Car Right' respectively
6. Unbind mouse left & right from 'Car More Left' and 'Car More Right'
7. Exit out of controls and hop into the driver position of a tracked vehicle
8. Have the vehicle's engine off and hold down Alt (default keybind) for "Look"
9. Move your mouse side to side while holding down the "Look" keybind and notice your vehicle turning itself on and shifting around