2008 Chevrolet Silverado 1500 Q&A

2008 Chevrolet Silverado 1500 Question: My service 4 wheel drive came on and it tries to engage 4 wheel drive on its own

I started the truck and started driving and the service 4 wheel drive came on, check engine light, abs light, and brake light all came on and sometimes the truck tries to engage 4 wheel drive on its on. -
Answer 1
what are the codes? -