2009 Chevrolet Silverado 1500 Crew Cab Owner's Manual - Page 31
2009 Chevrolet Silverado 1500 Crew Cab Manual
Page 31 highlights
Fuel Economy Gage Brake System Warning Light With the ignition in ON/RUN, the brake system warning light comes on when the parking brake is set. If the vehicle is driven with the parking brake engaged, a chime sounds when the vehicle speed is greater than 5 mph (8 km/h). 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. United States Canada If the warning light comes on and a chime sounds there could be a brake problem. Have the brake system inspected right away. This light also comes on due to low brake fluid. See the owner manual for more information. This gage indicates fuel efficiency. To obtain the best fuel efficiency, operate the vehicle so that the indicator is in the high efficiency band. The highest efficiency point is the center of the gage. Aggressive braking that does not allow regenerative braking causes the indicator to move towards the far left. Aggressive acceleration that requires more engine assistance, and uses more fuel, causes the indicator to move towards the far right. Modifying both braking and acceleration behavior to keep the indicator in the center of the gage will result in the best system efficiency and fuel economy. 3-5