2014 Chevrolet Silverado 3500 HD Crew Cab Owner Manual - Page 199
2014 Chevrolet Silverado 3500 HD Crew Cab Manual
Page 199 highlights
Lighting climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets. EPM works to prevent excessive discharge of the battery. It does this by balancing the generator's output and the vehicle's electrical needs. It can increase engine idle speed to generate more power, whenever needed. It can temporarily reduce the power demands of some accessories. Normally, these actions occur in steps or levels, without being noticeable. In rare cases at the highest levels of corrective action, this action may be noticeable to the driver. If so, a Driver Information Center (DIC) message might be displayed and it is recommended that the driver reduce the electrical loads as much as possible. See Vehicle Messages on page 5-37. 6-9 Battery Power Protection This feature shuts off the dome and reading lamps, if they are left on for more than 10 minutes after the ignition is turned off. The cargo lamp shuts off after 20 minutes. This prevents the battery from running down.
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