2008 GMC Savana Van Owner's Manual - Page 110

Engine Exhaust CAUTION: (Continued) {CAUTION: Engine exhaust and fuel operated heater exhaust can kill. It contains the gas carbon monoxide (CO), which you cannot see or smell. It can cause unconsciousness and death. If your vehicle has a diesel engine and a fuel operated heater, see "Fuel Operated Heater (FOH)" in the diesel engine supplement. You might have exhaust coming in if: • The exhaust system sounds strange or different. • Your vehicle gets rusty underneath. • Your vehicle was damaged in a collision. CAUTION: (Continued) • Your vehicle was damaged when driving • • over high points on the road or over road debris. Repairs were not done correctly. Your vehicle or the exhaust system has been modified improperly. If you ever suspect exhaust is coming into your vehicle: • Drive it only with all the windows down to blow out any CO; and • Have your vehicle fixed immediately. 2-30