2009 Dodge Ram 2500 Pickup Owner Manual - Page 346

344 STARTING AND OPERATING the stability feature at speeds above 40 mph (64 km/h). The "ESP/TCS Indicator Light" will always be illuminated when ESP is off. To turn ESP on again, momentarily depress the ESP OFF switch. This will restore the normal "ESP On" mode of operation. "ESP Off" is the only operating mode for ESP in 4WD LOW. Whenever the vehicle is started in 4WD LOW or the transfer case (if equipped) is shifted from 4WD LOCK or Neutral, to 4WD LOW, the ESP system will be in this mode. WARNING! With the ESP switched off, the enhanced vehicle stability offered by ESP is unavailable. In an emergency evasive maneuver, the ESP system will not engage to assist in maintaining stability. "ESP Off" mode is intended for off-highway or off-road use, only. ESP/BAS Warning Light and ESP/TCS Indicator Light The malfunction indicator for the ESP is combined with the BAS indicator. The "ESP/BAS Warning Light" and the "ESP/TCS Indicator Light" in the instrument cluster both come on when the ignition switch is turned to the ON position. They should both go out with the engine running. If the "ESP/BAS Warning Light" comes on continuously with the engine running, a malfunction has been detected in either the ESP or BAS system, or both. If this light remains on after several ignition cycles, and the vehicle has been driven several miles/kilometers at speeds greater than 30 mph (48 km/h), see your authorized dealer as soon as possible to have the problem diagnosed and corrected. NOTE: • The "ESP Indicator Light" and the "ESP/BAS Warning Light" come on momentarily each time the ignition switch is turned ON.