1997 Buick Century Owner's Manual - Page 216

If you put things insideyour vehicle -- like suitcases, tools, packages or anything else -- they will go as fast as the vehicle goes. If you have to stop orturn quickly, or if there is a crash, they'll keep going. Towing a Trailer Things you put inside your vehicle canstrike in and injure people in a sudden stop or turn, or a crash. Put things in the trunkof your vehicle. In a trunk, putthem as far forward as you can. Try to spread the weight evenly. Never stack heavier things, like suitcases, inside the vehicle so that some of them are above the tops of the seats. Don't leavean unsecured child restraint in your vehicle. When you carry something insidethe vehicle, secure it whenever you can. If you don't usethe correct equipment and drive properly, you can lose control when you pull a trailer. For example, if the trailer is too heavy, the brakes may not work well or even at all. You and your passengers could be seriously injured. Pull atrailer only if you have followed the all steps in this section. Askyour Buick dealer for advice and information about towing atrailer with your vehicle. -- NOTICE: Pulling atrailer improperly can damage your vehicle and result in costly repairs not covered by your warranty. To pull a trailer correctly, follow the advice inthis part, and see your Buick dealer for importantinformation about towing atrailer with your vehicle.