We bought the Avalanche in May and I am beginning to really despise it. The electrical system if not doing it's thing. I work late some nights and as I drove home, suddenly my headlights went out. The next day my husband discovered that if you have the steering wheel way up high (I am short and this does not work) and you hold it in place the lights may work. The high beams and cargo lights work fine. I now have a very nice truck I only drive in the daylight hours.

The lights fail to come on right away, eventually they come on. Then they go out again. It doesn't matter if they are on low or high beam. The tail & marker lights are always on. The fog lights also work properly. Can someone tell me what the problem is? Thank you.