Loss of dash lights..

Discussion in 'Peterbilt Forum' started by drvrtech77, Sep 28, 2020.

  1. drvrtech77

    drvrtech77 Road Train Member

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    Dash lights on instrument cluster are out but all the dash lights on a/c control are on and steering wheel controls are on as well.. 2018 579..what could be the issue??
     
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  3. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Try removing + battery cables for about 10 minutes or so to reboot CECU module.
     
    spsauerland, pushbroom and drvrtech77 Thank this.
  4. Dna Mach

    Dna Mach Road Train Member

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    Very common issue with Petes. Shut the truck off and let it go through its shutdown routine. As soon as you hear the transmission click it’s done. When you turn the key back on your dash lights should be operational. Never understood why they do this but every Pete I’ve ever driven does this.

    On my ‘19 579 the AC does this too which is a first for me. Driving down the road, click on the AC.....and it blows warm. Shut the truck off, restart and it’s ice cold again. Doesn’t happen often though. These new vehicles are so computerized there’s no telling what’s going on in there.
     
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  5. drvrtech77

    drvrtech77 Road Train Member

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    Just tried that and they are back on..
     
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