Auto headlight sensor
5 Year Member
Joined: Nov 2016
Posts: 3,263
Likes: 1,177
mine does the same thing. lights cut on anytime the dash is in the shade. doesn't have to be under a bridge or anything. it does it when the sun is behind the truck and not shinning directly on the dash.
the system in my 17 year old toyota worked much better. annoying. ive never had the lights cut off though...only on when they don't need to.
the system in my 17 year old toyota worked much better. annoying. ive never had the lights cut off though...only on when they don't need to.
The FORScan mod seems to be working. It's a 15 second delay on mine and also did my neighbors "17 with the same delay time. It is nice driving late afternoon with the low sun angle and going thru a row shadows on the streets and head on drivers not thinking that I'm flashing my lights that MR. LEO is running radar.
Senior Member
Joined: Oct 2016
Posts: 2,077
Likes: 405
From: Chicago area
Never paid attention to this before, my DRL's (headlights) are on anyways, always have the headlight switch in auto.
After 5 test trucks, the values in post #9 definitely added 13 sec.to the factory delay setting of 2 sec.for a 15 sec. total delay. This has helped those not using headlights as DRLs (using parking, turns etc) with the late afternoon, low sun angle shadows from keeping your DRLs switching on/off with headlights as well as dash lights going in/out night mode as driving thru the shadows.
5 Year Member
Joined: Jul 2016
Posts: 574
Likes: 103
After 5 test trucks, the values in post #9 definitely added 13 sec.to the factory delay setting of 2 sec.for a 15 sec. total delay. This has helped those not using headlights as DRLs (using parking, turns etc) with the late afternoon, low sun angle shadows from keeping your DRLs switching on/off with headlights as well as dash lights going in/out night mode as driving thru the shadows.
Awesome. Thanks for testing. What about starting the truck when it is already night? Is there a delay before the lights kick in?
Senior Member
Joined: Oct 2016
Posts: 2,077
Likes: 405
From: Chicago area
After 5 test trucks, the values in post #9 definitely added 13 sec.to the factory delay setting of 2 sec.for a 15 sec. total delay. This has helped those not using headlights as DRLs (using parking, turns etc) with the late afternoon, low sun angle shadows from keeping your DRLs switching on/off with headlights as well as dash lights going in/out night mode as driving thru the shadows.
Not yet- want to try different years, turns out they are all '16s but in 2 cities, KCMO and STL. lol. I wouldn't think there would be any difference in 15-17MYs but... 5 trucks in 1 MY is a small test sample.
Senior Member
Joined: Oct 2016
Posts: 2,077
Likes: 405
From: Chicago area
EDIT:
Well, I just pulled up AsBuilt Hacker and looked, my truck is already a 0, so I already have it set, no wonder I never noticed this before. Mine was set from the factory. I just added a bunch of serial numbers and will have to do some comparing, seems some trucks are 0 already, some are 1.
2nd edit, after glancing through a bunch of trucks and I mean a bunch, from a 2014 build dates through 2017, its either 0 or 1, I can't see a reason for it. Doesn't seem to make a difference on models. I have a few 18's in my list, will have to look later on.
Last edited by Gordy49913; Dec 27, 2017 at 12:19 PM.
Great-We been driving for about a week and not getting the shadows triggering the rapid on/off of night mode unless you sit in one for more than 15 sec.. The quickest test was driving in garage with the sun out and soon as my truck would hit the shadow in the garage the lights would come on within 2 sec. and now it's 15 sec. Now I can park the truck without the lights coming on. I also used a Lux meter at various locations.