What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[gooffeyguy]

No

Interesting. Curious as to why it would do that also.

 

[George B]

Interesting. Curious as to why it would do that also.

There’s only a few threads out there on some vehicles doing it and they seem related to the theft deterrent system. Maybe I can find something with my Tech2.

 

[gooffeyguy]

There’s only a few threads out there on some vehicles doing it and they seem related to the theft deterrent system. Maybe I can find something with my Tech2.

Thinking about it, years go I had an alarm system on a vehicle that would arm/disarm via a remote fob. It would chirp once when arming and twice when disarming. If it chirped 3 times when disarming it meant that the alarm had been set off during this time and reset after the 1 minute of going off.

 

[89Suburban]

I did what someone did a few pages back, installed a full set of the Husky Mud/Splash Guards today. What a pain in the ass, having to pull the rear wheels off, but I got it done.

https://www.lowes.com/pd/DEWALT-Right-Angle-Attachment/4761527

 

[swathdiver]

I noted that occasionally my horn beeps three times when I unlock with my fob after being in the store a while. Can’t find a solid answer on the interwebs. Any advice?

Thinking about it, years go I had an alarm system on a vehicle that would arm/disarm via a remote fob. It would chirp once when arming and twice when disarming. If it chirped 3 times when disarming it meant that the alarm had been set off during this time and reset after the 1 minute of going off.

^^^ THIS!!! ^^^^

Maybe someone installed the tilt and shock sensors? Do you get a message on your DIC when you pull the key out to turn it off? Tech-2 will show alarm activity.

 

[George B]

^^^ THIS!!! ^^^^

Maybe someone installed the tilt and shock sensors? Do you get a message on your DIC when you pull the key out to turn it off? Tech-2 will show alarm activity.

I do get a message that says “press the check to disable motion sensor”

 

[swathdiver]

I do get a message that says “press the check to disable motion sensor”

Cool, someone added the GM accessory tilt and or shock sensor to your truck.

The tilt sensor is mounted on top of the bracket that holds the BCM in place. The shock sensor is secured to the main wiring harness under the dash with a tie strap. The former is a square box, the latter is rounded with a dial for adjustment for sensitivity.

 

[George B]

Cool, someone added the GM accessory tilt and or shock sensor to your truck.

The tilt sensor is mounted on top of the bracket that holds the BCM in place. The shock sensor is secured to the main wiring harness under the dash with a tie strap. The former is a square box, the latter is rounded with a dial for adjustment for sensitivity.

View attachment 394239View attachment 394240

Found this TSB

https://f01.justanswer.com/Bluegorilla/eb6a2120-7161-4d50-896c-87321583fd14_My_Boot_Camp_printed_document.pdf

 

[George B]

Cool, someone added the GM accessory tilt and or shock sensor to your truck.

The tilt sensor is mounted on top of the bracket that holds the BCM in place. The shock sensor is secured to the main wiring harness under the dash with a tie strap. The former is a square box, the latter is rounded with a dial for adjustment for sensitivity.

View attachment 394239View attachment 394240

I also found this on the GM website but I didn’t find the shock sensor.

Site Maintenance

accessories.chevrolet.com

https://ecom-dam.ext.gm.com/products/documents/ISheets_17803330.pdf

 

[mikez71]

I disconnected the tilt sensor to stop my random alarms.