GMC Terrain 2017 Owner's Manual page 88

6. To tighten the belt, push down
on the child restraint, pull the
shoulder portion of the belt to
tighten the lap portion of the
belt, and feed the shoulder belt
back into the retractor. When
installing a forward-facing child
restraint, it may be helpful to
use your knee to push down on
the child restraint as you
tighten the belt.
Try to pull the belt out of the
retractor to make sure the
retractor is locked. If the
retractor is not locked, repeat
Steps 5 and 6.
7. Before placing a child in the
child restraint, make sure it is
securely held in place. Push
and pull the child restraint in
different directions to be sure it
is secure.
If the airbag is off, the off indicator in
the passenger airbag status
indicator will come on and stay on
when the vehicle is started.
If a child restraint has been installed
and the on indicator is lit, see If the
On Indicator Is Lit for a Child
Restraint under Passenger Sensing
System 0 64.
To remove the child restraint,
unbuckle the vehicle safety belt and
let it return to the stowed position.
Seats and Restraints 87