1998 Buick Century Owner's Manual - Page 106

Parking Over Things That Burn Engine Exhaust Things that can burn could touch hot exhaust parts under your vehicle and ignite. Don't park over papers, leaves, dry grass or other things that Engine exhaust can It contains the gas kill. carbon monoxide (CO), which you can't see or smell. It can cause unconsciousness and death. You might have exhaust coming in if: Your exhaust system sounds strange or different. Your vehicle gets rusty underneath. Your vehicle was damaged in a collision. Your vehicle was damaged when driving over high points on the road or over road debris. Repairs weren't done correctly. Your vehicle or exhaust system had been modified improperly. If you ever suspect exhaust coming into is your vehicle: Drive it only with all the windows down to blow out any CO; and Have your vehicle fixed immediately. 2-30