Diono Monterey 2XT Manuel D'instructions page 19

A. ATTACHING THE BACKREST
1. With seat lying flat on the floor,
place hooks at seat bottom.
2. Attach the backrest hooks to
seat mounting points.
3. Push down on backrest
just above hooks until fully
engaged.
4. Rotate backrest to an upright
position while maintaining
pressure just above the hooks.
To detach backrest, follow steps
backwards starting from step 4.
FIRST SETUP
diono.com
19