1996 Chevrolet Tahoe Owner's Manual - Page 127

If the LightIs Flashing The following may prevent more serious damage to your vehicle: Reduce vehicle speed. ' I If the LightIs On Steady You may be able to correct the emission system malfunction by considering the following: Did you just put fuel into your vehicle? Avoid hard accelerations. Avoid steep uphill grades. 0 If towing a trailer, reduce the amount of cargo being hauled as soon as it ispossible. If so, reinstall the fuel cap, making sure to fully install the cap. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This will allow fuel toevaporate into the atmosphere. A few driving trips should turn the light off. . Did you just drive through a deep puddle of water? If so, your electrical system may be wet. The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off. Are you low on fuel? As your engine starts to run out of fuel, your engine may not run as efficiently as designed since small amounts of air are'sucked the fuel line causing a misfire. The into system can detect this.Adding fuel should correct this condition. Make sureto install the fuel cap properly. It will take a few drivingtrips to turn the light off. If the light stops flashing andremains on steady, see "If the Light Is On Steady" following. If the lightcontinues to flash, when it is.safe to do so, stop the vehicle. Put your vehicle -inPARK (P). Turn the 'key off, wait at least 10 seconds and restart the engine. If the light remains on steady, see "If the Light IsOn Steady" following. If the light is still flashing followthe previous steps, and drive the vehicle to your dealer or qualified service center forservice. 2-64