1993 GMC Safari Owner's Manual - Page 82

Features & Controls I 0 Engine Exhaust CAUTION Engineexhaustcankill. It contains the gascarbonmonoxide (CO), which you can't see orsmell. It cancauseunconsciousness and death. Youmight haveexhaustcoming in if: * Your exhaustsystemsoundsstrangeordifferent, Yourvehiclegetsrustyunderneath, Your vehiclewasdamaged in acollision, I 0 Your vehiclewasdamagedwhendrivingoverhigh roadroad over debris. or # points onthe Repairs weren't correctly. done Your vehicle or exhaustsystem had beenmodifiedimproperly. If you ever suspect exhaust is coming into your vehicle: * Drive it onlywith all thewindowsdown to blowoutany CO; and Have it fixed immediately. I 2-24