The importance of shoulder belts

Using a booster without a shoulder belt increases the risk of a child’s head hitting a hard surface in a collision. For this reason, you should never use a booster seat with a lap belt only. It is generally best to use a booster seat with lap/shoulder belts in the back seat.
Move a child to a different seating location if the shoulder belt does not stay positioned on the shoulder during use.
Follow all instructions provided by the manufacturer of the booster seat.
WARNING: Never place, or allow a child to place, the shoulder belt under a child’s arm or behind the back because it reduces the protection for the upper part of the body and may increase the risk of injury or death in a collision.
See also:
2008 Lincoln MKX Review
The Lincoln MKX is a midsize SUV — or CUV, as the company likes to call it,
to reflect that it's a car-based crossover. The MKX provides a refined, smooth
driving experience in a people-hauler tha ...
Electronic compass
The compass heading is displayed in the center integrated display (CID).
The compass reading may be affected when you drive near large
buildings, bridges, power lines and powerful broadcast anten ...
Automatic locking mode
In this mode, the shoulder belt is automatically pre-locked. The belt will
still retract to remove any slack in the shoulder belt. The automatic
locking mode is not available on the driver safety ...
