1998 Pontiac Grand Am Owner's Manual - Page 124

If the Light Flashing Is NOTICE: If you keep driving your vehicle with this light on, after a while, your emission controls may not work as well, your fuel economy may not be as good and your engine may not run smoothly. as This could lead to costly repairs that may not be covered by your warranty. This light should come on, a check to show you is as it working, when the ignition on and the engine is not is running. If the light doesn't come on, have it repaired. This light will also come on during a malfunction in one The followingmay prevent more serious damage to your vehicle: 0 Reducing vehicle speed. Avoiding hard accelerations. Avoiding steep uphill grades. If you are towing a trailer, reduce amount of the soon as it is possible. cargo being hauled as 0 0 0 If the light stops flashing remains on steady, see and "If the LightIs On Steady" following. If the light continues to flash, when it is safe to do so, stop the vehicle. Find a safe placeto park your vehicle. Turn the key wait at least 10 seconds and restart the off, on engine. If the light remains steady, see "If the Light If Is On Steady" following. the lightis still flashing, to your follow the previous steps, and drive the vehicle dealer or qualified service center service. for of two ways: 0 Light Flashing -- A misfire condition has been and detected. A misfire increases vehicle emissions may damage the emission control system your on vehicle. Dealer or qualified service center diagnosis and servicemay be required. Light On Steady -- An emission control system malfunction has been detected your vehicle. on Dealer or qualified service center diagnosis and service may be required. 2-63