2007 Dodge Ram 1500 Pickup Owner's Manual - Page 354
2007 Dodge Ram 1500 Pickup Manual
Page 354 highlights
354 STARTING AND OPERATING The ESP system has multiple operating modes depending on vehicle type - Two Wheel Drive (2WD) or Four Wheel Drive (4WD). 4WD vehicles may be equipped with either a four mode position (2WD/Neutral/4HI/ 4LO) transfer case or a five mode position (2WD/Auto/ Neutral/4H/4LO) transfer case. If you have a 4WD vehicle, refer to the Four Wheel Drive Operating Section to determine which transfer case is on your vehicle and how to operate it. All 2WD vehicles and 4WD vehicles in 2WD, Auto or 4HI Modes can choose the following ESP operating modes: ESP On This is the normal operating mode for ESP in 2WD/ Auto/4HI Modes and in 2WD vehicles. Whenever the vehicle is started or the transfer case (if equipped) is shifted from 4LO or neutral back to 4HI or Auto, the ESP system will be in this mode. This mode should be used for almost all driving situations. ESP should only be turned to "Partial Off" or "ESP Off" for specific reasons as noted below. This mode is entered by momentarily depressing the "ESP Control Switch". When in "Partial Off" mode, the TCS portion of ESP, except for the "limited slip" feature described in the TCS section, has been disabled and the "ESP/ TCS Indicator Light" will be illuminated. All other features of ESP function normally, with the exception of engine power reduction. Engine power is not reduced in this mode. This mode is intended to be used if the vehicle is in deep snow, sand or gravel conditions and more wheel spin than ESP would normally allow is required to gain traction. To turn ESP on again, momentarily depress the "ESP Control Switch". This will restore the normal "ESP On" mode of operation.