My 4x4 lamp randomly flashes on and off after in 4x4

Hello, this indicates a fault occurring in the 4 wheel drive system has been noted. Unfortunately, you'll have to have some testing performed and interface with the control module of the system to find out what's going on. Testing will reveal a fault, and then hands on troubleshooting will be needed to find out more. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops