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  1. #1
    Registered Member One Ring
    Join Date
    Apr 22 2008
    AZ Member #
    27977
    Location
    Colorado

    Help! Hazard Lights Won't Go Off

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    The battery in my 2005 was old, dying, and not holding a charge. I confirmed this by taking it out of the car and charging it overnight, letting it sit for a day and testing. It would drain without any load.

    I am attempting to trade the car in this week, so I bought a Duralast Red Top from Autozone in the same size as the stock Audi battery. After installing, the car starts and runs fine, radio works, car locks and unlocks, but the hazard lights will not stop flashing. Both front and rear flash rapidly until the battery is unplugged, and continue to do so for a few seconds after that. A quiet alarm sound comes intermittently from the right rear of the car. Pushing the hazard light button causes the hazard light blinking to slow to about half the speed it does otherwise. When the hazard light button is turned off, they speed up again.

    I have no idea what this is, and have not been able to figure it out searching on Google, Audiworld, here, or Audigeeks. I called an Audi tech who said he had never heard of the problem before.

    Has anyone seen this? If yes, how was it remedied? Any help would be appreciated. I have a sneaking suspicion that the dealer will low-ball me on my trade-in if I bring it in with the hazard lights going wild.

  2. #2
    Veteran Member Four Rings
    Join Date
    Oct 16 2006
    AZ Member #
    12611
    Location
    Naperville

    Re: Help! Hazard Lights Won't Go Off

    Alternator ?? For why it's not holdin charge .... My battery is literally 7 years old and I'm still doing fine .

  3. #3
    Veteran Member Four Rings onceover's Avatar
    Join Date
    Jun 08 2008
    AZ Member #
    29690
    My Garage
    B8 A4, 964 Carrera, 955 Cayenne S, MK1 Cabrio, T2b Westfalia
    Location
    Calgary AB Canada

    Re: Help! Hazard Lights Won't Go Off

    I had the same issue when my battery was dieing.

    turns out the car would be locked when the battery died totally. The alarm would somehow remember that the car was locked and would trip when a new battery was installed.

    All i had to do was lock/unlock the car with the key fob to get it to stop
    2011 Audi A4 Avant // quattro // Garnet Red
    Stock. For now...

    1989 Porsche Carrera 4 // 5 Speed // Guards Red

  4. #4
    Registered Member One Ring
    Join Date
    Apr 22 2008
    AZ Member #
    27977
    Location
    Colorado

    Re: Help! Hazard Lights Won't Go Off

    I'll try the lock/unlock trick and see if that does it. Thanks for the replies!

  5. #5
    Veteran Member Four Rings
    Join Date
    Oct 15 2006
    AZ Member #
    12580
    My Garage
    From a few to one...
    Location
    Arlington, VA

    Re: Help! Hazard Lights Won't Go Off

    try it with the key in the door rather than using the remote. that worked for me when my cabriolet battery died last week.

    '97 A4 1.8TQ, '02 A4 1.8TQ Avant, '03 A4 1.8TQMS, '04 A4 3.0Q Cabrio - Sold
    '18 S4 Prestige - APR Stage 1 ECU/TCU, APR Intake

  6. #6
    Registered Member One Ring
    Join Date
    Apr 22 2008
    AZ Member #
    27977
    Location
    Colorado

    Re: Help! Hazard Lights Won't Go Off

    The lock/unlock worked! Thanks!

    Car showed a bunch of trouble codes, cleared them, and it has been fine.

  7. #7
    Established Member Two Rings a4nate3.0's Avatar
    Join Date
    Mar 25 2009
    AZ Member #
    40350
    Location
    Massachusetts

    Re: Help! Hazard Lights Won't Go Off

    Pull out bulbs....signal with arm! jk

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