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Old 01-30-2010, 05:10 PM   #1 (permalink)
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Default Unlocking the door with key triggers car alarm

We have a 2010 bare bone Forester. If we unlock the doors per remote everything works well. If we unlock with the actual key in the door, most of the time the car alarm is triggered and has to be reset with the panic button of the remote. Are we doing something wrong? Is this a more common defect? How is the key transmitting the code?

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Old 01-30-2010, 05:12 PM   #2 (permalink)
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If you lock the doors with the keyfob, the alarm is set. You need to unlock with the fob to turn off the alarm OR get your key into the ignition to turn off the alarm.
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Old 01-30-2010, 05:25 PM   #3 (permalink)
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Once the security system is armed, unlocking via the key lock only opens the door. It doesn't disarm the security system. Everything is working properly.

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Old 01-30-2010, 05:39 PM   #4 (permalink)
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It's done that way so someone can't bust your windows and unlock the door and open it. Working a it should. My system is setup to auto arm after 30seconds. The doors do not lock but the alarm sets.
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Old 01-30-2010, 08:49 PM   #5 (permalink)
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If I lock my 2010 Forester using the the key in the drivers door lock, not the key fob , is the alarm still armed? Do I have to use the key fob to arm the alarm?
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Old 01-30-2010, 08:59 PM   #6 (permalink)
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Quote:
Originally Posted by Timbo64 View Post
If I lock my 2010 Forester using the the key in the drivers door lock, not the key fob , is the alarm still armed? Do I have to use the key fob to arm the alarm?

Good question. Try it out and let us know!

I know with my 2006MY if I lock the door using the auto-lock switch the alarm automatically arms when the door closes.
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Old 01-30-2010, 09:03 PM   #7 (permalink)
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IFAIK, if you exit the vehicle, close the door & use your key to lock the door, the security system would not be armed. Not sure why you'd want to lock your vehicle & not want the security system armed?

You can arm the security system without the fob, by locking the doors with the door switch as you exit. When the door is closed, the security system will be armed.

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Old 01-31-2010, 06:01 AM   #8 (permalink)
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I always use the fob, I was just curious. Thanks.
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Old 01-31-2010, 11:24 AM   #9 (permalink)
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This info helped a lot - And I got it now why the Forester's alarm acts so "irradically"... ;-)

I am not the main driver of this car and I was not planing on having FOB and key on my key chain. I thought I could get by with just the key as with my wifes old Mazda ( ... and I guess I still could if I am willing to disarm the alarm by sticking the key in the ignition lock...)

Thanks, Patrick
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Old 01-31-2010, 12:42 PM   #10 (permalink)
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Originally Posted by yoh!!! View Post
This info helped a lot - And I got it now why the Forester's alarm acts so "irradically"... ;-)

I am not the main driver of this car and I was not planing on having FOB and key on my key chain. I thought I could get by with just the key as with my wifes old Mazda ( ... and I guess I still could if I am willing to disarm the alarm by sticking the key in the ignition lock...)

Thanks, Patrick
I like the idea of a keyless entry & of course the security system, but I hate the bulkiness of the fob! My son & I keep just the ignition key with the fob & our other keys on another ring. That way we can place the fob + key in a separate pocket. This protects the fob, since it can be positioned so the one key doesn't scrape it up.

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Old 01-31-2010, 02:36 PM   #11 (permalink)
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One can always lock the doors as follows: use the electric doors-lock button on the door to lock all the doors while inside the car, then unlock the driver's door with the manual door lock on the door, exit the car, lock the door with the same manual door-lock, and close the door. All the doors are now locked. When one comes back, use the key to open the door, and the alarm doesn't sound.
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Old 03-19-2011, 07:04 PM   #12 (permalink)
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I have a 2001 forester and never had to use the remote to lock the doors until a week ago. I had always used the electric button to lock the doors and unlock the driver side door using the key for 10 years. Last week when I did it, the alarm went off. I had no idea what happened. Now, I have to lock and unlock the doors with remote otherwise the alarm will sound. Does anyone know how this could suddenly change?
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Old 03-19-2011, 08:12 PM   #13 (permalink)
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I see this is your first forum post, so welcome to the forum from Oregon!

It sounds like your security system is operating normally in "passive arming mode". Meaning when the doors are locked using the electric lock as you exit, when the doors is closed, the security system is armed. Did you recently have your Forester serviced?

On our '03 there's a white connector that needs to be plugged together to activate this option. I'm not sure if your '01 is the same, but it's well documented in or '03 owner's manual.

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Old 03-19-2011, 09:49 PM   #14 (permalink)
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This is very interesting since my 03 doesn't sound when I unlock the door via the key no matter what, but my wife's tribeca will sound the alarm if I use my key to unlock it, but not if I use her key with integrated fob. Both remotes work normally both keys work the ignition, by mine is the only one that sets the alarm off. Quirk of the system I suppose.
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Old 03-20-2011, 08:44 AM   #15 (permalink)
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Do you have optional security system upgrade in your '03? Our '03 X didn't come with it installed, just the keyless entry, so we had to add it.

See 2-17 in your Owner's Manual for the details on "Passive Arming". It explains how to enable or deactivate this feature.

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