Check Engine Light, 4Lo flashing, Trac Control - This happens when your battery gets completely drained. (3 Viewers)

[SharpeCat]

Last couple times I just drove for a little bit and then lights went off on their own (minus the TPMS sensor, my spare has a leak).

No need to panic. Last time my center diff light flashed as well. My 4lo (it’s flashing but pic doesn’t show) is in good working condition and can engage quickly when needed, As I test it frequently, and truck is in 4hi mode right now.

 

[SharpeCat]

This time I didn’t even drive it, just left car running for 30 mins after a jump start and lights are gone now.

 

[stiffarm]

Trac off and 4 lo engaged dash lights cured by simply checking and then tightening the gas filler cap. Thanks for this forum!!!