The QX70 was introduced in 2014 (it was formerly known as the Infiniti FX) and was discontinued after the 2017 model year.
2C is very poorly set up – for car seats, boosters & adults in seat belts. The seat belt buckle for 2C is on a very long piece of webbing which will make it impossible to get a secure installation with most car seats in 2C. In addition, we found that we couldn’t use our Harmony Youth booster in 2C as the buckle stalk was so long in 2C that the seat belt hardware got stuck in the booster’s arm rests. The lap belt for 2C is anchored very high in the seat crack which makes the lap belt fit poor (the lap belt rests on the belly, not the tops of the thighs).
To remove the head restraints for 2D/2P, you must fold the vehicle seat forward.