siren in rear when battery low?
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, siren in rear when battery low? in Cadillac SRX Forums; Hello I have had 2 batteries, one the dealer replaced when he sold me the car, the second I bought ...
  1. #1
    orandaberg is offline Cadillac Owners Connoisseur
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    siren in rear when battery low?

    Hello
    I have had 2 batteries, one the dealer replaced when he sold me the car, the second I bought because it would not hold a load. I have tested for battery drain, I do show some drainage, removed radio fuse, the same, removed connections to my radar and rear headrest DVD, sane drain, removed every fuse under the hood same drain, the battery will only last 5 days without a charge. So every time I leave the car over 3 days I keep a trickle charger, or remove the ground if I leave at the airport.

    I was wondering what is the siren noise in the rear of the car when the battery is low and needs a charge? Hook up the charger and a siren goes on at the right rear, sort of like a break in alarm, it also looks like the battery only lets itself get to a point of drainage where it stops draining the battery. If I hook up a charger it takes an hr and the car is good to go for daily driving. As long as the car is driven everyday or before3-5 days are up it starts fine. Any ideas. Seems to be a problem with every SRX I wanted to test drive, they always had to re charge the battery before I could drive it (5 cars tested).

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  3. #2
    orandaberg is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    Nobody has heard this sound?

  4. #3
    conedoctor is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    You sub woofer is back there, is it possible that the amp is powering it all the time for some reason?

    You installed a bunch of aftermarket stuff in a very short time so it could be anything, the way the car talks to other parts of the car means that two unrelated things could cause issues that don't make any sense. Not saying its an aftermarket item but im just saying.

  5. #4
    orandaberg is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    Thanks
    I will have to pull the fuses in the back, but what a hassel to remove trim panels! How about that siren going off when charging the battery, is that some kind of alarm that goes off when the battery is at a level is going to be to weak?

  6. #5
    conedoctor is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    I think you missed what I was saying.

    Stuff in the back may be powered by stuff in the front, so Im not saying pull fuses, find out what is making the noise first like the sub.

    I don't know of any alarm for battery level.

  7. #6
    orandaberg is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    AHHH SOOOO ok. So next time I run into this I should pull the radio fuse, would that be enough to stop power to the sub wof in the back. The sound is coming from the right rear panel, the sound lasts for about 5 mins before going off on its own when charging

  8. #7
    conedoctor is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    I think the amp fuse is for the amp.

    You could also try pulling the plug on the sub and do it that way, easy to get at from the back.

  9. #8
    JayT F1's Avatar
    JayT F1 is offline Cadillac Owners Member
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    Re: siren in rear when battery low?

    I had a Power Capacitor wired in with a Sub woofer in another car. Whenever there was loss of power from the battery, the Cap would alarm on 'low voltage' until in either a) ran out of power b) was re-charged from the cars 12v supply

    Do you have some sort of Cap or auxiliary power to your amplifier / sub?

  10. #9
    orandaberg is offline Cadillac Owners Connoisseur
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    Re: siren in rear when battery low?

    Not that I know of, its OEM, the sound is similar to a cars alarm when you tamper with it, not a honking horn, just a high pitch whistle sound

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