Chevrolet 2005 Tahoe Owner's Manual page 60

Tahoe
A child restraint with a top strap should only be used in
the second or third row.
Do not secure a child restraint in the right front
passenger's position or the third row driver's-side and
center seating positions if a national or local law requires
that the top strap be anchored, or if the instructions
that come with the child restraint say that the top strap
must be anchored. There is no place to anchor the
top strap in these positions.
Tahoe Second Row Seat
1-54
Tahoe Third Row Seat
An anchor loop bracket for a top strap is located at the
bottom rear of the seat cushion for each seating
position in the second row and in the outboard
passenger-side seating position in the third row.