2010 Hummer H3 Owner's Manual - Page 128

5-14 Instruments and Controls the battery has recently been replaced or if the battery has run 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 can prepare the vehicle for inspection. 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: . United States Canada 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 This light comes on briefly when the ignition key is turned to ON/RUN. If it does not, have it fixed so it will be ready to warn if there is a problem. When the ignition is on, the brake system warning light comes on when the parking brake is set. See Parking Brake on page 9‑51 for more information. The light stays on if the parking brake does not release fully. If it stays on after the parking brake is fully released, it means there is a brake problem. Brake System Warning Light The 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 though, both parts need to be working well. If the warning light comes on, there could be a brake problem. Have the brake system inspected right away. .