My 07 suburban was running fine then all of a sudden the park assistant off light came on and the traction control light came on and stability track light came on the service 4 wheel drive light came on the service suspension light came on and there is clicking coming from my fuse box on the driver side. The dash lights and gagues are going crazy the doors are locking and unlocking rapidly. Battery and alternator are fine. Does anyone know what this could be?

 

When that happened to me, it turned out to be the battery. Everything worked and it started and ran. The gauges were just going crazy. A new battery fixed it. Might not be your problem but it fixed mine!!