You can read more my doing a engine search for Maclaren stroller recall or click here for the MSNBC report. Several models are affected and there is a free kit you can order to fix the problem.
However, the website seems to be down (probably because everyone is trying to get the kit) but you can still call them toll-free at (877) 688-2326.
So, if you have a Maclaren STOP USING IT NOW!
Check to see if your stroller is affected by the recall and or if you need the kit.... I believe the affected models include Volo, Triumph, Quest Sport, Quest Mod, Techno XT, Techno XLR, Twin Triumph, Twin Techno and Easy Traveller......