1999 GMC Sonoma Owner's Manual - Page 49

yellowblue If your child restraint has a top strap, it should be anchored. If you need to have an anchor installed, your dealer can obtain a kit with anchor hardware and installation instructions specifically designed for this vehicle. The dealer can then install the anchor for you. This work will be done for you free of charge. Or, you may install the anchor yourself using the instructions provided in the kit. Jump Seats (Extended Cab) Securing a Child Restraint in the Center Front Seat Position Don't use child restraints in these positions. The restraints won't work properly. Don't use child restraints in this position. The restraints won't work properly. 1-43