Your vehicle will not pass this inspection if theOBD (on-board diagnostic) system determines thatcritical emission control systems have not beencompletely diagnosed by the system. The vehicle wouldbe considered not ready for inspection. This can happenif you have recently replaced your battery or if yourbattery has run down. The diagnostic system isdesigned to evaluate critical emission control systemsduring normal driving. This may take several daysof routine driving. If you have done this and your vehiclestill does not pass the inspection for lack of OBDsystem readiness, your GM dealer can prepare thevehicle for inspection.Oil Pressure Light{CAUTION:Do not keep driving if the oil pressure is low. Ifyou do, your engine can become so hot that itcatches fire. You or others could be burned.Check your oil as soon as possible and haveyour vehicle serviced.Notice: Lack of proper engine oil maintenance maydamage the engine. The repairs would not becovered by your warranty. Always follow themaintenance schedule in this manual for changingengine oil.If equipped, this light tellsyou if there could be aproblem with your engineoil pressure.The light goes on when you turn your key to ON orSTART. It goes off once you start your engine. That’s acheck to be sure the light works. If it doesn’t comeon, be sure to have it fixed so it will be there to warnyou if something goes wrong.When the light comes on and stays on, it means that oilisn’t flowing through your engine properly. You couldbe low on oil and you might have some other systemproblem. See Engine Oil on page 5-16 for moreinformation.3-44