As the title states. Yep, read the owners manual. I normally don't use the auto on setting, I can turn the lights on myself, but, I do go from manual off, turn all the way to auto dim. The last couple times I drove at night, in darkest Michigan, the auto hi/lo didn't work. Yes, the proper speeds were met, as well as no other vehicle within miles at around midnite.
Is there something in the instrument panal display settings i might have screwed up other than the length of time setting?

 

John,

Under the lighting setting on the cluster, there should be a checkbox for auto high beam

 

Man, that was fast Lt. thanks, I'll go check it out.

 

You can activate/deactivate the auto-high beams by the stalk as well. You don't need to go into the dash setup.

 

I'm wondering if that isn't the problem.
I went and checked like DJ offered, and the auto was checked.
I left the **** turned all the way to auto, so next time the lights should come on in auto dim. I tested that out in the barn with the door closed, and barn lights off, and heads went on at low beam. Wasn't above 30 mph or so, so they stayed on lo.
We'll see next time I drive at night if just leaving **** in auto is the cure. Never had trouble before with the heads.
Would manually going to hi/lo, or lo/hi with the stalk screw up the auto?

 

john,

for auto highs to work, the switch needs to be in auto and then you should see the highbeam indication in the cluster with an A in the center, that means the system is active and ready.

If you use the stalk while in auto, it defeats them for that ignition cycle

 

You can enable/disable auto high beams with the stalk. You do not need to cycle the ignition. Stalk forward toggles auto high beams on and off (the little A will show/hide as it is enabled/disabled).

 

I'll bet that's exactly what happened! I was at my neighbors new house, and left about 2330. I turned the heads to auto, of course they didn't come on, I was going about 15 mph in their 1/4 mile long very dark driveway, got anxious, and flipped the lights to high. Obviously defeated the auto feature. After having two trucks with that feature, I didn't know it worked that way!!!! Oh dopey me.
Thanks guys!

 

Gripe of mine. You have to be stopped to get into the menu to turn auto hi beam back on after manually defeating it. Give me a pushbutton on the stalk like my other car.

 

No you don't . It goes right back to auto with another click of the lever.