1999 Buick LeSabre Owner's Manual - Page 87

yellowblue Parking Over Things That Burn Engine Exhaust CAUTION: Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you can't see or smell. It can cause unconsciousness and death. You might have exhaust coming in if: D Your exhaust system sounds strange or different. D Your vehicle gets rusty underneath. D Your vehicle was damaged in a collision. D Your vehicle was damaged when driving over high points on the road or over road debris. D Repairs weren't done correctly. D Your vehicle or exhaust system had been modified improperly. If you ever suspect exhaust is coming into your vehicle: D Drive it only with all the windows down to blow out any CO; and D Have your vehicle fixed immediately. CAUTION: 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 can burn. 2-31