Malfunctioning occupant detection sensor - Page 2

phlydude · 10-21-2005, 10:35 AM

It might be that:
a - the seat is functioning and your son is of acceptable size
b - detects as a child and light doesn't illuminate because of that

mtofell · 10-21-2005, 10:38 AM

My 2005 works just fine. My boy is about 50lbs and usually rides in the back... Sometimes I let him sit up front... I am more worried about him getting hurt from an airbag that deploys in a minor wreck than from the wreck itself. Mine has worked fine so far and I watch it closely.

I think the explanation that the sensor is weight and 'mass' is a bunch of BS... how could the seat know how much mass there is. That would have to be a really high-tech set of sensors that I doubt they would spend the $$ to put in this truck. All of the other manufacturers I have heard of just use a straight weight sensor.

llajumpvid · 10-21-2005, 11:19 AM

It took me a year to convince them that mine was malfunctioning. I got the same BS from Nissan and the dealer that it was working correctly. Finally after we sat in 7 (SEVEN) other Armadas and all 7 (SEVEN) worked correctly did they finally replace the seat! After they did that it still didn't work for the first few times my wife sat in it (it wouldn't even detect me at 180lbs) but then after a week it started working everytime and I haven't had a problem since.

Here is a copy from the Canadian Nissan site which actually gave a weight for how the seat worked. I doubt it's still there, it was on the USA site for a short duration then they pulled it when they started getting complaints.

http://www.clubarmada.com/showthread...ht=seat+sensor

llajumpvid · 10-21-2005, 11:22 AM

Quote:

Originally Posted by mtofell

I think the explanation that the sensor is weight and 'mass' is a bunch of BS... how could the seat know how much mass there is. That would have to be a really high-tech set of sensors that I doubt they would spend the $$ to put in this truck. All of the other manufacturers I have heard of just use a straight weight sensor.

What they are saying is that a 6 foot tall 110lb passenger is not going to put as much weight on the sensor as a 4 foot tall 110lb passenger would.

SickWhip · 10-21-2005, 12:46 PM

Quote:

Originally Posted by SickWhip

I contacted my service dept. today after reading this:
[important] Airbag issues - weight confirmed
and he asked that my wife come in and site in one of the new titans and see if she light goes off in it. And if so, then he would order me a new seat. What do you guys think about that?

After visiting the dealer last night, the service manager agreed to order a new seat assembly.

mtofell · 10-21-2005, 11:09 PM

Quote:

What they are saying is that a 6 foot tall 110lb passenger is not going to put as much weight on the sensor as a 4 foot tall 110lb passenger would.

I don't get it... is this because the 6 foot person has bigger feet which are on the floor and thus aren't hitting the sensor? It would seem that the sensor just detects weight. Without having a bunch of mini-sensors within the seat, it would not be possible to notice the difference in the short, stout person and the tall skinny person. Maybe the seat is more high tech than I think and there are numerous points that it takes a reading from but I doubt it. Also, I would think the sensor is designed to take a reading once when a person first gets in because once the car gets moving, the bumps in the road would give it false readings... I think there was a question like this on a physics exam I once took....

llajumpvid · 10-22-2005, 07:23 AM

Quote:

Originally Posted by mtofell

I don't get it... is this because the 6 foot person has bigger feet which are on the floor and thus aren't hitting the sensor? It would seem that the sensor just detects weight. Without having a bunch of mini-sensors within the seat, it would not be possible to notice the difference in the short, stout person and the tall skinny person. Maybe the seat is more high tech than I think and there are numerous points that it takes a reading from but I doubt it. Also, I would think the sensor is designed to take a reading once when a person first gets in because once the car gets moving, the bumps in the road would give it false readings... I think there was a question like this on a physics exam I once took....

The service manager said the sensor not only measures weight but seat position and seatbelt tension. Anyway the weight thing is a distribution issue, you don't put all of your weight on the seat, some is resting on the floor through your legs. Some is taken by the seat back through friction. So if you are tall you have more surface touching the back of the seat and reducing the load to the seat bottom.