What the heck is this?

[subcpo]

While I was installing my sidesteps/running boards today..(Swish ) I was shutting my rear door on my crew crab and I heard a banging noise. I went over to the passenger side and looked down between the truck bed and the cab.

I shut the door again and noticed a square about 6x6 Inches on the back of the cab. Everytime I shut the door it looked like a flap came out....Kind of like a Dog door. Any ideas???

[Squid]

My 02 Frontier had that also.It's to relieve the inside pressure so you don't have to slam the door when you close it.

[subcpo]

Thanks Squid...that's what I thought.....Either that or a Beer Can Ejection System.

[SUBTITAN]

Yep, Mine has it too. There's what feels like a vent behind the back passanger side seat. Probably for heat venting or something of that sort to keep the cabin from becoming stale, or perhaps some sort of pressure release . Other than that and I have no idea.

Edited due to out of order thoughts. Happens when you get older and your 6yr old is talking to you while you type.

[Squid]

Either that or a Beer Can Ejection System.

Now why didn't I think of that?

[ICE17N24]

I'm glad you guys posted this cause I was wondering the same thing. Kind of bugged me that the rear passengers side CC door was making that sound every time 4 year old slams it.

THANKS FOR THE INFO

ICE

[import2nr]

all cars have this feature . it is for pressure release . my 1992 toyota tercel had it in the trunk. i used to have a set of subwoofers in the trunk and there was a severe rattle coming from it evertime the bass hit. i found the source it was that damn flap. and my 2000 jeep grand cherokee had it to

[subcpo]

Thank you all once again....Once again you have kept me from losing my mind. =)

[Boone-Titan]

My understanding is the vent relieves pressure in the cabin in the event of an airbag deployment. Could be wrong..?