Money Target’s car seat trade-in event returns April 22 with a discount for bringing in old seat April 5, 2019 Kelly Tyko, USA TODAY Comments Off on Target’s car seat trade-in event returns April 22 with a discount for bringing in old seat Mark your calendar. Target's popular car seat trade-in event returns April 22. For bringing in an old car seat, get a coupon for 20% off baby items.