Solid white Regen light on 2022 Peterbilt 579

Discussion in 'Questions From New Drivers' started by nextgentrucker, Jun 2, 2025.

  1. Long FLD

    Long FLD Road Train Member

    11,638
    47,357
    Mar 4, 2015
    0
    Find the switch on your dash, first make sure it’s not flipped up for some reason to disable a regen, then push it down and hold it for a few seconds. It should idle up and start a regen while you’re parked.

    IMG_5857.jpeg IMG_5858.jpeg
     
    Concorde, nextgentrucker and JB7 Thank this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. 201

    201 Road Train Member

    12,185
    24,865
    Apr 16, 2014
    high plains colorado
    0
    :biggrin_2556:, um, you know, I'd go through a roll of electrical tape covering up all these "warning" lights. Those instructions on the visor( continued on passenger visor) may as well be Chinese to me. No, you can't teach an old dog new tricks. I remember when just the shift pattern decal caused confusion.:biggrin_2559:
     
    Numb and nextgentrucker Thank this.
  4. nextgentrucker

    nextgentrucker Road Train Member

    1,142
    943
    Sep 25, 2023
    Port Saint Lucie, Fl
    0
    I tried that yesterday and it didn't work, I've seen on Google that engine temp needs to be 185F or higher for it to do a regen, it was that yesterday and it still didn't work, the one in the picture is white, shouldn't it be yellow and flashing for me to be able to do a parked regen?
     
    Last edited: Jun 3, 2025
  5. Espressolane

    Espressolane Road Train Member

    17,275
    105,072
    Nov 21, 2009
    Just south of the north 40
    0
    What are the miles on the truck? If it’s around 400k, it probably needs a DPF clean and ash timer reset.
     
    nextgentrucker Thanks this.
  6. JB7

    JB7 Heavy Load Member

    718
    1,083
    Dec 13, 2022
    Laurel, MD
    0
    Put your pic in a written message to the office. Tell them what you tried and ask for guidance. CYA
     
    dosgatos and nextgentrucker Thank this.
  7. nextgentrucker

    nextgentrucker Road Train Member

    1,142
    943
    Sep 25, 2023
    Port Saint Lucie, Fl
    0
    About 252,136 miles, so not much.
     
  8. Long FLD

    Long FLD Road Train Member

    11,638
    47,357
    Mar 4, 2015
    0
    If you’ve had sensor problems, depending on what sensors, there’s a chance it could’ve been pumping too much def and has gummed up the filter. On my last truck I had to have my filter cleaned at roughly 200k because of a faulty NOx sensor.
     
    nextgentrucker Thanks this.
  9. nextgentrucker

    nextgentrucker Road Train Member

    1,142
    943
    Sep 25, 2023
    Port Saint Lucie, Fl
    0
    Cool, I asked the shop and they said it's regening itself and will go off automatically so let's hope it's that.
     
    ESAFO Thanks this.
  10. Espressolane

    Espressolane Road Train Member

    17,275
    105,072
    Nov 21, 2009
    Just south of the north 40
    0
    Most companies don’t do proper maintenance on the emissions systems.

    The Cummins system requires a DPF cleaning every 150,000 miles. Most of the others are the same. Be surprised how much of the problems get avoided by that service.
     
    nextgentrucker Thanks this.
  11. tscottme

    tscottme Road Train Member

    Feel free to look in the truck's driver manual or Google your truck make & model & a question.
     
    nextgentrucker Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.