2008 Chevrolet Impala Owner's Manual - Page 48

To assist you in locating the top tether anchors, the top tether anchor symbol is located on the cover. The top tether anchors are located under the covers on the rear seatback filler panel behind each head restraint. 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 a position without a top tether anchor 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. 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 1-40 for additional information. 1-44