Money Walmart’s car seat recycling event underway through Sept. 21. What you need to know. August 30, 2019September 20, 2019 Kelly Tyko, USA TODAY Comments Off on Walmart’s car seat recycling event underway through Sept. 21. What you need to know. Walmart kicks off its first car seat recycling event Monday and through Sept. 21, get a $30 gift card for trading in a used car seat.