I have 2008 RDX and have noticed a bit of a lump on the backrest of the front passenger seat. If you run your fingers along the backrest you can feel that lump behind the perforated leather.I checked a new one at the dealer today and they all seem to have this lump( incl. an MDX) but not as pronounced when brand new.
It looks like it is some kind of wire, probably for the air bag sensor .It becomes more prevalent as the seat gets used(leather stretching and not as tight).
Has anyone experienced this?

 

Lumbar support maybe?

 

^^^^^^^^^^^^^^^^^

there is actually controls on the side of the seat to control the lumbar support.

 

I don't have any controls for lumbar support on my 07 passenger seat.

I havent noticed any "bump". about where on the backrest is it located?

 

sorry on the 07's its only for the driver....

 

What kind of lumbar controls do you have on your 08 passenger seat?

 

mines an 07 i only have it on the driver side.

Is the passenger seat on the 08's full power with lumbar support ?

 

You're making my head hurt.

There is no power passenger seat and no lumbar adjustment as I previously suspected.

 

on the 08 ? I believe there is, it was mentioned here.

Ya it is power. http://www.motortrend.com/cars/2008/...pecifications/

No mention of lumbar support for the passenger thoe. Then again no mention of lumbar support for the driver but there is.

 

I have an 08 and there is NO power passenger seat or lumbar support, so this lump has to be something to do with the air bag sensor for children.

 

I just glanced that motortrend site quickly but I saw no mention of a power passenger seat.

 

im confused

 

There is nothing to be confused about. It does not matter what a magazine says.
Like I said before, I own a 2008 and there is no power passenger seat or lumbar support in it.There is however a power drivers seat with power lumbar support in it.

 

oh wow stupid me! They were talking about the bloddy passenger side mirrors.

 

Then it's probably the weight sensor for the airbag, but those are usually located in the bottom part of the seat, dunno.

 

Apparently according to the service guy there is one on the seat for the weight and one in the backrest for the height of the child.
MY whole question was if someone else noticed the lump when they run their palm/fingers down the back rest. I mentioned that I checked a brand new one in the showroom and it also had it but not as pronounced(maybe because the seats had not been used).

 

None has noticed this by running their palms/fingers on the backrest(perforated portion)? Maybe none has tried it yet.
Comments would be appreciated.

 

Hi Casa - I have a 2008 and just ran out to have a look. I don't actually see any bumps in the passenger seat, but if you face the seat, running my fingers along the right edge where the perforated leather meets the regular leather, I do feel something about mid-way down the seat. Again, not noticeable visually. It's not a pronounced bump at all in my vehicle, but there is something there. I'm not sure if that helps you at all.

 

This is why there isn't a heat element on the passenger seatback as there is for the driver - the airbag sensor is there, so therefore passengers can only warm their butts. Another reason to be behind the wheel, sez I.

 

I haven't seen any complaints on this at our shop, and I'm too lazy to run down stairs and check my '07.