"Recline settings" refers to the convenience feature in chairs, sofas, or car seats that allows the user to adjust the backrest to a more comfortable or angled position for sitting or lounging. Full definition
This has 7 recline settings in both the forward and rear - facing models, which means that it can have micro adjustments for overall comfort — and to better fit into different cars. (bestcarseathub.com)
There is only one recline setting so it can't fit very well in most vehicles. (thankyourbaby.com)
The stroller is also has multiple recline settings which is just another way to customize their comfort on long days out. (earlymomentsmatter.org)