GMC Sierra 2010 Owner's Manual page 97

WARNING:
Do not attach more than one child restraint to a
single anchor, except for the center top tether
anchors in the crew and extended cabs. Attaching
more than one child restraint to a single anchor
could cause the anchor or attachment to come
loose or even break during a crash. A child or
others could be injured. To reduce the risk of
serious or fatal injuries during a crash, attach only
one child restraint per anchor.
WARNING:
Children can be seriously injured or strangled if a
shoulder belt is wrapped around their neck and
the safety belt continues to tighten. Buckle any
unused safety belts behind the child restraint so
children cannot reach them. Pull the shoulder belt
all the way out of the retractor to set the lock,
if your vehicle has one, after the child restraint
has been installed.
Notice: Do not let the LATCH attachments rub
against the vehicle s safety belts. This may damage
these parts. If necessary, move buckled safety belts
to avoid rubbing the LATCH attachments.
Do not fold the empty rear seat with a safety belt
buckled. This could damage the safety belt or the
seat. Unbuckle and return the safety belt to its
stowed position, before folding the seat.
Regular Cab Models
1. If the child restraint manufacturer recommends that
the top tether be attached, attach and tighten the
top tether to the top tether anchor, if your vehicle
has one. Refer to the child restraint instructions
and the following steps:
1. 1. Pull the passenger seatback forward by
pulling the recliner handle upward to access
the top tether anchor. See Reclining
Seatbacks on page 2 10 for additional
information.
1. 2. Find the top tether anchor.
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