2010 Chevrolet Traverse Owner's Manual - Page 144

5-18 . Instruments and Controls Emissions Inspection and Maintenance Programs Some state/provincial and local governments have or might begin programs to inspect the emission control equipment on the vehicle. Failure to pass this inspection could prevent getting a vehicle registration. Here are some things to know to help the vehicle pass an inspection: . Make sure to fuel the vehicle with quality fuel. 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. If one or more of these conditions occurs, change the fuel brand used. It will require at least one full tank of the proper fuel to turn the light off. See Gasoline Specifications on page 9‑39. down. The diagnostic system is designed to evaluate critical emission control systems during normal driving. This can take several days of routine driving. If this has been done and the vehicle still does not pass the inspection for lack of OBD II system readiness, your dealer/ retailer can prepare the vehicle for inspection. The vehicle will not pass this inspection if the check engine light is on with the engine running, or if the key is in ON/ RUN and the light is not on. The vehicle will not pass this inspection if the OBD II (on-board diagnostic) system determines that critical emission control systems have not been completely diagnosed by the system. The vehicle would be considered not ready for inspection. This can happen if the battery has recently been replaced or if the battery has run Brake System Warning Light This vehicle's hydraulic brake system is divided into two parts. If one part is not working, the other part can still work and stop the vehicle. For good braking both parts need to be working. If the warning light comes on, there is a brake problem. Have the brake system inspected right away. . If none of the above have made the light turn off, your dealer/retailer can check the vehicle. The dealer/ retailer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that might have developed.