Chevrolet 2007 Silverado 1500 Pickup Owner's Manual page 91

If a child restraint has been installed and the on
indicator is lit, turn the vehicle off. Remove
the child restraint from the vehicle and reinstall the
child restraint.
If after reinstalling the child restraint and restarting
the vehicle, the on indicator is still lit, check to
make sure that the vehicle's seatback is not
pressing the child restraint into the seat cushion. If
this happens, slightly recline the vehicle's
seatback and adjust the seat cushion if possible.
Also make sure the child restraint is not trapped
under the vehicle head restraint. If this happens,
adjust the head restraint.
If the on indicator is still lit, secure the child in
the child restraint in a rear seat position in
the vehicle if one is available and check with
your dealer.
To remove the child restraint, if the top tether is
attached to the top tether anchor, disconnect
it. Unbuckle the vehicle's safety belt and let it go
back all the way. The safety belt will move
freely again and be ready to work for an adult or
larger child passenger.
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