Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Results 1 to 14 of 14

Thread: Highbeams

  1. #1
    DennySTSV is offline Cadillac Owners Member
    Automobile(s): STS-V
    Join Date
    Apr 2013
    Posts
    12

    Highbeams

    Why is there a delay when i press my high beams? Ive always wondered


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    bigburban's Avatar
    bigburban is offline Cadillac Owners Fanatic
    Automobile(s): Sts-v 2008
    Join Date
    Feb 2010
    Location
    Minnesota
    Posts
    130
    What delay?

  4. #3
    DennySTSV is offline Cadillac Owners Member
    Automobile(s): STS-V
    Join Date
    Apr 2013
    Posts
    12
    Ill press the button to flash them and theres a split second delay before they come on and then when i let go they stay on for another split second and then close

  5. #4
    1madstsv's Avatar
    1madstsv is offline Cadillac Owners Connoisseur
    Automobile(s): 08 STS-V,10 escalade,80 sedan deville diesel 13 cts vagon
    Join Date
    Aug 2010
    Location
    York pa
    Age
    32
    Posts
    1,602

    Re: Highbeams

    My 06 did that also don't no why. But my 08 has no delay.

  6. #5
    TimmyC is offline Cadillac Owners Connoisseur
    Automobile(s): 2006 STS-V and 2007 STS-V The Murdalac
    Join Date
    Feb 2009
    Location
    1/2 hr S of Grand Rapids, MI
    Age
    37
    Posts
    1,897

    Re: Highbeams

    Processing time. The stalk just sends a signal to turn on the brights. There is no direct connection. I'd guess it takes that time for the computer to carry out the command.

  7. #6
    Guy.Seminerio is offline Cadillac Owners Connoisseur
    Automobile(s): '79 coupe deville, '04 Deville DTS White Lightning
    Join Date
    Feb 2013
    Location
    Whitestone, NY
    Age
    28
    Posts
    3,211

    Re: Highbeams

    My 09 does that too. It doesn't help that they're halogens. Halogens don't have that sharp "cutting" on and off like HID and LEDs do. They more "glow" on and "dim" off. But even with that in mind, there is clearly a little additional delay. I notice it especially when my automatic highbeams are turning off due to oncoming traffic, but doing it a half second later than I believe they should.

  8. #7
    wake's Avatar
    wake is offline Cadillac Owners Enthusiast
    Automobile(s): 2007 STS-V, 2007 Escalade, 2003 Escalade EXT
    Join Date
    Sep 2003
    Location
    Stafford, VA
    Posts
    812

    Re: Highbeams

    Same with my 07. It's annoying.

    I drive a lot of rural roads and find myself hitting the high beam switch a second time as they don't dim immediately for oncoming traffic.

    It's clearly a delay as I notice the high beam indicator in the IP also stays lit until the high beams switch off.

  9. #8
    1madstsv's Avatar
    1madstsv is offline Cadillac Owners Connoisseur
    Automobile(s): 08 STS-V,10 escalade,80 sedan deville diesel 13 cts vagon
    Join Date
    Aug 2010
    Location
    York pa
    Age
    32
    Posts
    1,602

    Re: Highbeams

    It's a bad set up my 98 750 BMW had the same light set up as the v hid low and halogen high and there was no delay its sad really for Cadillac.

  10. #9
    Guy.Seminerio is offline Cadillac Owners Connoisseur
    Automobile(s): '79 coupe deville, '04 Deville DTS White Lightning
    Join Date
    Feb 2013
    Location
    Whitestone, NY
    Age
    28
    Posts
    3,211

    Re: Highbeams

    It's almost as if it's done intentionally for some reason. I had a 97 altima that didn't have this problem. I don't think GM was unable to engineer the highbeams to turn on and off without a delay for Cadillacs. They must have a reason for it that we're not aware of. Also that we're not too fond of.

  11. #10
    wake's Avatar
    wake is offline Cadillac Owners Enthusiast
    Automobile(s): 2007 STS-V, 2007 Escalade, 2003 Escalade EXT
    Join Date
    Sep 2003
    Location
    Stafford, VA
    Posts
    812

    Re: Highbeams

    Quote Originally Posted by Guy.Seminerio View Post
    It's almost as if it's done intentionally for some reason. I had a 97 altima that didn't have this problem. I don't think GM was unable to engineer the highbeams to turn on and off without a delay for Cadillacs. They must have a reason for it that we're not aware of. Also that we're not too fond of.
    I think on some of the older vehicles that don't have the high and low beams on at the same time the delay was necessary to get the low beam HID putting out light. On our vehicles though it isn't an issue as the low stays on when the highs are on. It's annoying and I don't understand it. A couple of times I've been caught by surprise by an oncoming motorist and actually switched highs off and back on again because I thought it didn't register the first time.

  12. #11
    CMNTMXR57's Avatar
    CMNTMXR57 is offline Cadillac Owners Connoisseur
    Automobile(s): 2006 STS-V, 2004 Pontiac GTO, 1999 Chevrolet Suburban LT 4x4
    Join Date
    Feb 2009
    Location
    Chicago
    Age
    44
    Posts
    1,328

    Re: Highbeams

    Isn't the other way around you mean. When you turn OFF the high beams, there is the delay? On our cars (as mentioned), the low beam HID's stay on when your high beams are on. This is a departure from normal GM vehicles with halogen lights where the low beams go off when the highs are on. Since HID bulbs take a few seconds to warm up before having a proper level of lumen output, that delay time (even though ours are still on), is built into the system ((which communicates through the PCM and BCM), as a safety net to ensure you don't drive with no lighting at all.

  13. #12
    Guy.Seminerio is offline Cadillac Owners Connoisseur
    Automobile(s): '79 coupe deville, '04 Deville DTS White Lightning
    Join Date
    Feb 2013
    Location
    Whitestone, NY
    Age
    28
    Posts
    3,211

    Re: Highbeams

    Yes the delay when shutting off is the issue. That's what blinds oncoming motorists. Your explanation of the HIDs having to warm up makes a lot of sense. Too bad (as you do note) our low beams don't turn off to begin with, rendering this delay an unnecessary annoyance, especially to oncoming drivers. That's why I just turn them off manually.

  14. #13
    Ludacrisvp's Avatar
    Ludacrisvp is online now Cadillac Owners Connoisseur
    Automobile(s): 08 STS4 V8 F55 1SG Euro tails & 01 Monte SS Pace Car
    Join Date
    Feb 2009
    Location
    St Michael, MN
    Age
    30
    Posts
    4,549

    Re: Highbeams

    The delay is what I believe to be a fade out cycle which is used by the intellibeam system.
    This also prevents you from rapidly flashing the high beams, which will help prolong the life of that halogen lamp.

    My 08 has a delay. Neither of my parent's SRX's or my older (02) deville have a delay, but they also cannot have intellibeam.
    I would wonder if the cars without it have no delay and the cars that do have the delay.

  15. #14
    DennySTSV is offline Cadillac Owners Member
    Automobile(s): STS-V
    Join Date
    Apr 2013
    Posts
    12
    Alright thanks guys


Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum