1998 Pontiac Grand Prix Owner's Manual - Page 144

The low traction light also comes on briefly when you turn the ignition key to RUN. If the light doesn't come on then, haveit fixed so it will be there to tell you when the anti-lock brake system, Traction Control System or Enhanced Traction Systemis active. 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 be not covered by your warranty. Malfunction Indicator Lamp (Service Engine Soon Light) Your vehicle is equipped with a computer which monitors operationof the fuel, ignition and emission control systems. This light should come on, as a checkshow you it is to working, when the ignition is on and engine is not the running. If the light doesn't come on, haverepaired. it This light will also come on during a malfunctioni one n of two ways: This system is called OBD (On-Board I1 0 Light Flashing-- A misfire condition has been Diagnostics-Second Generation) and is intended to detected. A misfire increases vehicle emissions and assure that emissions are at acceptable levelsthe for may damage the emission control system your on life of the vehicle, helping produce a cleaner to vehicle. Dealer or qualified service center diagnosis environment. The SERVICE ENGINE SOON light and service may be required. comes on to indicate that there is a problem and service a Light On Steady An emission control system -is required. Malfunctions often will be indicated the by malfunction has been detected on your vehicle. system before any problem is apparent. This may diagnosis and Dealer or qualified service center prevent more serious damage to your vehicle. This service may be required. system is also designed to assist your service technician in correctly diagnosing malfunction. any SERVICE ENGINE SOON 2-69