[Larryh336]

Was driving on highway when the 4wd light came on in the top left and the little screen were it ussauly shows the illuminated tires went blank. Once I got to where I was going I turned the truck off and went inside and when I came out it was back to normal. Does anyone have an idea why that would happen?

 

[V8 man]

That is the malfunction light. Something went wrong with a sensor or connector.
That is as far as I can go without throwing out guesses and those can get expensive and a wild goose chase.

 

[bob-w]

The week before I had to replace my battery the last time my 4 wheel drive indicators went basically bonkers several times while I was trying to figure it out the truck failed to start twice even though battery checked out ok. A few days after that the battery failed and tested bad; replaced battery and all has been well since. I think the battery had cells intermittently failing. I don't know if this relates to your trouble but check battery and all connections - good luck.

 

[Larryh336]

Thabks I'll look at battery maybe I left the termanal loose after the light bar install