2007 Chevrolet Avalanche Owner's Manual - Page 58

The top tether anchors are located on the back of the rear seat frame above the floor for each rear seating position. Fold down the rear seatback(s) to access the anchors. See Rear Seat Operation on page 18. Be sure to use an anchor located on the same side of the vehicle as the seating position where the child restraint will be placed. Do not secure a child restraint in the right front passenger's position if a national or local law requires that the top tether be attached, or if the instructions that come with the child restraint say that the top tether must be attached. There is no place to attach the top tether in this position. Accident statistics show that children are safer if they are restrained in the rear rather than the front seat. See Where to Put the Restraint on page 54 for additional information. 58