i am just wondering..because i was testing my cars' alarm systems...
when i tested my bmw i put th ewindow down a little bit and locked the doors(set the alarm)...the second i put my hand through the window teh alarm went off...i tried it with the g and i unlocked my door and even sat down and nothing went off..

so i am wanting to know under what circumstances do our alarms go off?

thx for feedback!

 

The alarm (not really an alarm, but a security system) will only go off if you locked your doors and then unlock it without the keys (i.e. put you hands through the window and pull the unlock lever), and will shut off in about 2 minutes. I don't think anything else will set it off.

 

i have an 06 coupe and i have never heard my alarm go off.. i tried tapping my car, kicked my wheel, a smack on the roof, door, fender... and nope it didn't go off.. the only time i heard my alarm is when i press the Panic button on the key fob...

 

No motion or shock sensors of any type are included with the factory alarm.

 

Most factory systems don't come with shock sensors. They usually only go off when the door is opened.

 

bmw has motion sensor..thats the little clown nose thing on the mirror

 

If the hood, doors, or trunk are opened while the alarm is armed it will go off. If someone breaks a window or smacks into your car the alarm won't go off.

 

wow...well i guess im glad the most expensive out of the 2 is the one that has a stronger security system..

but thx for the feedback!

 

Most OEM systems have to compromise between overall security and false alarms. No one wants to own a car with an alarm that goes off all the time.

Everytime you add a sensor you greatly increase the chance of a false alarm. Motion sensors are notoriously bad for this, and I've never actually seen a car that had a motion sensor installed on the assembly line. Was the motion sensor a dealer add on?

 

INFINITI should think about shock sensers

 

imo there a waste of money..by time someone knocks into
your **** and you notice there gone

 

Just add one yourself, its like $20

 

i dont think so...im looking at the booklet they gave me..it says .".remote keyless entry security alarm system with selective un locking and doublelock feature"

ive had it for bout a month or 2 now...never had a false alarm..only when i was testing it...i think its great that it goes off when anything goes through the window when its open....

 

I installed an aftermarket shock sensor myself and it works like a charm. Depending on the sensitivity level, a knock on the window will set the alarm off.

http://www.autotechs.com/items/item1081.htm

 

has anyone thought of adding this

http://www.autotechs.com/items/item365.htm

I'm assuming you would need to wire it up to a power source so that it only had power when the ignition was off. Otherwise it would be unable to reset the current vertical / horizontal of the angle of the car when you turn off the ignition.