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Thread: Trailer brake malfunction light on 08 gmc 2500

  1. 10-03-2008 #1
    bootyslap1
    bootyslap1 is offline
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    Trailer brake malfunction light on 08 gmc 2500

    My friend has a 08 gmc 2500 6.0l with 6l80 tranny.. he put 35' in tires on it. when i use hptuners to correct the speedo i got a trailer brake malfunction lamp on and abs and brake warning lights. has anyone experienced this and is there any fix for it??
    thanks
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  2. 05-28-2009 #2
    ars-auto
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    ttt anyone know a fix?
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  3. 05-29-2009 #3
    brianfromhawaii
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    maybe PM that dude, he probably figured it out, i mean it was posed like 7 months ago.... good job doing a search though!
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