It is very important to read both the car seat and vehicle manual before and during car seat installation. Additionally, we emphasize the importance of finding a CPST (Child Passenger Safety Technician "car seat guru") to assist with the installation of your car seat.
For more information, please refer to your Radian® 3QXT® SafePlus™ car seat product manual by clicking here.
If you have any more questions, please contact Customer Support by clicking here.
Please watch video's below on how to install your Radian® 3QXT® SafePlus™ car seat with a vehicle seat belt: