2014 Cadillac XTS Owner Manual - Page 132

5-20 . Instruments and Controls vehicle, allowing fuel to evaporate into the atmosphere. A few driving trips with the adapter removed should turn off the light. . If towing a trailer, reduce the amount of cargo being hauled as soon as it is possible. diagnostic tools to fix any mechanical or electrical problems that might have developed. If the light continues to flash, stop and park the vehicle. Turn the vehicle off, wait at least 10 seconds, and restart the engine. If the light is still flashing, follow the previous steps and see your dealer for service as soon as possible. Light On Steady: An emission control system malfunction has been detected on the vehicle. Diagnosis and service might be required. The following may correct an emission control system malfunction: . Check that good quality fuel is used. Poor fuel quality causes the engine not to run as efficiently as designed and may cause stalling after start-up, stalling when the vehicle is changed into gear, misfiring, hesitation on acceleration, or stumbling on acceleration. These conditions might go away once the engine is warmed up. Emissions Inspection and Maintenance Programs Depending on where you live, your vehicle may be required to participate in an emission control system inspection and maintenance program. For the inspection, the emission system test equipment will likely connect to the vehicle's Data Link Connector (DLC). Make sure the capless funnel adapter is removed, if fuel has been added to the vehicle using the capless funnel adapter. See "Filling the Tank with a Portable Gas Can" under Filling the Tank on page 9-60. The diagnostic system can detect if the adapter has been left installed in the If one or more of these conditions occurs, change the fuel brand used. It may require at least one full tank of the proper fuel to turn the light off. See Fuel on page 9-58. If none of the above have made the light turn off, your dealer can check the vehicle. The dealer has the proper test equipment and The DLC is under the instrument panel to the left of the steering wheel. See your dealer if assistance is needed.