My jeep cherokke stroller won t collapse properly. what is wrong?

SOURCE: Graco Quattro Tour Duo Stroller won't fold up

I called customer service at Graco and explained the problem, asked for a fix. The rep said the part is not replaceable and told me to send the stroller back to them for 'evaluation and/or replacement'.  They will pay to FedEx it back to them this week. So that is where it stands.
Thank you very much for your site and offering a chance to put the problem out there.

SOURCE: folding graco stroller

how to fix the strooles directions

SOURCE: Folding Quinny speedi Sx Stroller

In the middle of the underneath of the pushing handle, below where the hand brake lever is there should be a button. If there is, this is what you do.
1) put the foot brake on so the rear wheels wont turn.
2) unclip the clips on the frame that allow you to adjust the height of the pushing handle, they open up, and leave them open, like this the handle you push the buggy with should slide up and down.
3) pull this handle out to its tallest position
4) Hold the handle and press the button mentioned at the start in and hold it in
5) Then quite quickly push the handle down as though you were either pushing it to lower its pushing height, or shoving it away in a temper. It needs to be a firm and quick movement.

Ta da!! After a couple of tries it should click and fold up.

I hope this helps.

SOURCE: fold stroller

Not sure how different this one is to ours but we have an older Dreamer Design double stroller and down by the front wheel there are two black plastic clips that you pull upwards while at the same time pushing two small depressable "buttons" that are in line with the main bars coming down towards the front wheel... once that's done you lift and push backwards at the same time, the whole stroller frame will move backwards (oh brake has to be on) and then once those main bars are free you can pull the frame towards you and then double it over back on itself...the rear wheels pull out by pushing the centre button and pulling on the wheel and they you're able to put it just about anywhere...hope that helps...Rob

SOURCE: how to fold stroller

i have both the double and single dreamer design stroller and on both - there is a black pull thingie ... if you put your hands on the handbar and then follow down the frame (along the back side of the seat). You will feel it - as it is kinda hard to see. Once you pull this on both sides, push down on the handbar - towards the ground. The stroller will then fold down and in half.