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2018 Freightliner slpr light problem

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Paul Bunyan, Apr 28, 2018.

  1. Apr 28, 2018 #1
    Paul Bunyan

    Paul Bunyan Light Load Member

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    Sep 2, 2016
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    This cascadia I'm driving is a 2018, it doesn't have the Ambient light switch or footwell. The slpr lights won't stay on, if I turn them on from the cab or slpr they only stay on for 10-15 sec then turn off. If I turn on the dome light and the slpr lights then they both stay on and the dome light will stay on by itself just not the slpr. Does anyone know how to keep them on, I'm sure I'm not doing something right but it's a dang light, on and off or so I thought. Thanks
     
    Paul Bunyan, Apr 28, 2018
    Paul Bunyan, Apr 28, 2018
    #1
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  3. Apr 28, 2018 #2
    kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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    Have you looked at the owners manual?
     
    kemosabi49, Apr 28, 2018
    kemosabi49, Apr 28, 2018
    #2
  4. Apr 28, 2018 #3
    Paul Bunyan

    Paul Bunyan Light Load Member

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    Yes, I guess I should of put that also.
     
    Paul Bunyan, Apr 28, 2018
    Paul Bunyan, Apr 28, 2018
    #3
  5. Apr 28, 2018 #4
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Batteries might be low / worn. Sounds like it is in self preservation mode. When the batteries get low, it will turn things off to limit power usage.
    Leave the engine running and turn on your sleeper lights and see if they stay on.
     
    Dave_in_AZ, Apr 28, 2018
    Dave_in_AZ, Apr 28, 2018
    #4
  6. Feb 20, 2019 #6
    Smokie666

    Smokie666 Bobtail Member

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    Feb 20, 2019
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    I have a 2019 Cascadia and it does the same thing The Sleeper Dome Lights will only stay on if either the Ambient or the Front Dome light is on. It's not a battery issue because every other light stays on
     
    Smokie666, Feb 20, 2019
    Smokie666, Feb 20, 2019
    #6
  7. Feb 21, 2019 #6
    skytrash

    skytrash Light Load Member

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    Apr 6, 2017
    denton , tx
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    To keep the sleeper and other lights on the key has to be in acc. Position. Turn it to the left
     
    skytrash, Feb 21, 2019
    skytrash, Feb 21, 2019
    #6
    Dave_in_AZ Thanks this.
  8. May 17, 2020 #8
    Brandygreene

    Brandygreene Bobtail Member

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    May 17, 2020
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    Tried your suggestion it worked, but i also figured out that if if you turn sleeper dome on from fronr dash it will stay on
     
    Brandygreene, May 17, 2020
    Brandygreene, May 17, 2020
    #8
    Dave_in_AZ Thanks this.
  9. May 17, 2020 #8
    Brandygreene

    Brandygreene Bobtail Member

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    May 17, 2020
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    Edit only stayed on for about 15 min
     
    Brandygreene, May 17, 2020
    Brandygreene, May 17, 2020
    #8
    Dave_in_AZ Thanks this.
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