Hi,

Anyone know if there is a sensor to adjust sensitivity for the factory alarm system for the G37? Few days ago my alarm rang for the first time due to maybe ground shaking from traffic. I thought the alarm rings only when door is opened or something major happened. Anyone else alarm rang before?

 

Unfortunately I don't have any helpful info but sometimes when I'm working under the car with the keys in my pocket and I guess my leg pushes the panic button and I damn near **** myself every time

 

Unless you have the OEM accessory "Vehicle Alarm Impact Sensor" (999M2 VU003) our cars alarm system is quite basic: If the door/hood/trunk opens it will sound off. There is no motion or impact sensor.

My guess is one of those door/hood/trunk switches is acting up.

 

If you have the impact sensor, is located on the lower right (passenger) side, above the BCM module.
Is a small black plastic box with a white trim button.
The trim is VERY sensitive so rotate it maximum 1-2 mm then test the results.
To test the impact sensor, lock the car, wait for 1 minute, then kick the front right wheel to start the alarm.

 

Sweet, is this impact sensor - 999M2 VU003 a thing I could just order and install into an otherwise stock alarm system or are there more requirements?

 

^^^ I believe so. It was a dealer installed option and I suspect it may be hard to find now.

Here are the install instructions:

Coupe: https://www.infiniti-techinfo.com/as.../S/U/1SU10.PDF
Sedan: https://www.infiniti-techinfo.com/as.../S/U/1SU11.PDF

 

This doesn't have to do with the impact sensor, but when I bought my car the alarm started going off randomly. Sometimes early in the morning or late at night. Once I figured out it should only be going off if a door/the hood/the trunk are opened I figured something must not be sealed correctly. I went out and closed the hood nice and firmly and the problem went away. I know it sounds silly but it's always worth trying the simple solutions first.

 

have u checked to make sure all interior/map lights are off? I know leaving them on makes alarm sound like hours after u lock car

 

Really? Mine didn't..

 

Yes. I ordered mine online and i install it on the car.
It came with detailed instructions and is easy to install.

 

I know this thread is old but i had to take mine out because it kept acting up and going off for no reason. Does anyone know if the new sensor they have for the Q50/60 will fit our G37's?

 

@SonicVQ Thanks for posting those instructions. My 2009 G37 has the impact sensor and it has been so sensitive that a garbage truck rumbling past would set it off. One time I made the mistake of cleaning my windshield while the car was locked and set off the dang alarm. It would go off all the time — especially annoying at 3:00 a.m.

I was able to pull all the plastic panels, find the sensor, and dial it all the way down.

Here's a photo:

Here's the impact sensor. It's tucked up and hard to see.

 

Glad it helped! When the notification came in, I had no idea what the thread was about, I guess that happens after 5 years

 

Damn, just learned something new. That's why I like coming on here still after 7 years lol. Good info here.