2009 Dodge Ram 1500 Pickup Owner Manual - Page 237

UNDERSTANDING YOUR INSTRUMENT PANEL 235 control module. Post-heat operation can run for sev21. Voltmeter eral minutes, and then the electrical system and voltWhen the engine is running, the gauge indicates the meter needle will stabilize. electrical system voltage. The pointer should stay within the normal range if the battery is charged. If the pointer 22. Cargo Light moves to either extreme left or right and remains there The cargo light will illuminate when the cargo during normal driving, the electrical system should be light is activated by pressing the cargo light serviced. button on the headlight switch. NOTE: • If the gauge pointer moves to either extreme of the 23. Brake Warning Light gauge, the "Check Gauges" indicator will illuminate This light monitors various brake functions, and a single chime will sound. including brake fluid level and parking brake application. If the brake light turns on, it may • The voltmeter may show a gauge fluctuation at variindicate that the parking brake is applied, that ous engine temperatures. This cycling operation is the brake fluid level is low, or that there is a problem with caused by the post-heat cycle of the intake manifold the Anti-lock Brake System reservoir. heater system. The number of cycles and the length of the cycling operation is controlled by the engine 4