Q: Airbag light on; horn and cruise control don't work

This is almost certainly an issue with the clock spring on your vehicles steering column. This is the part that allows steering wheel electronics to be connected without wires so that the steering wheel can be turned without risking a lost connection. If this part goes bad, any steering wheel electronics will no longer work. I would enlist the help of a certified professional to检查您的方向盘电子设备。安全气囊可能非常危险，意外部署可能是致命的，因此我建议在回到路上之前参加此问题。