My 2004 Yukon XL shifts into 4 Wheel Hi on it's own. It's hard to get it back to 2 wheel.

What is your question?

My Yukon shifts into for wheel high on it's own when going down the road. It happens after driving a short period of time. It's very difficult to shift back to 2 wheel.

What makes this problem better or worse?

Happens when driving.

How long has your 2004 GMC Yukon XL 1500 had this problem?

Just started