"Britax has received 33 reports of car seats unexpectedly disconnecting from the strollers and falling to the ground," said the CPSC recall announcement. This resulted "in 26 reports of injuries to children, including scratches, bruises, cuts and bumps to the head."
Customers of Babies R Us, buy buy Baby, Target (as well as online stores such as diapers.com and Amazon.com) could have bought the strollers anytime in the past five years; the recall covers products sold between May 2011 and February 2017.
If you have a Britax stroller, you can check the model number on the bottom of the stroller frame and compare it to the full list of the affected products on the Britax website or the CPSC recall website. But even if you do have a Britax B-Agile and BOB Motion stroller, you don't have to stop using it entirely, just avoid using the car seat and stroller together.
"Owners of the recalled double strollers should stop using them with car seats attached," the CPSC announcement said. "Consumers can continue to use their stroller or car seat independently without the car seat attached to the stroller."
But you should immediately stop using the Click & Go receiver mounts (the part that would connect the car seat to the stroller) and contact the company for a free repair kit: