2011 Jeep Grand Cherokee Owner Manual - Page 354

352 STARTING AND OPERATING Electronic Range Select (ERS) Operation The Electronic Range Select (ERS) shift control allows you to move the shift lever left (-) or right (+) when the shift lever is in the DRIVE position, allowing you to limit the highest available gear. For example, if the driver shifts the transmission into ERS 3 (third gear), the transmission will never shift above third gear, but can shift down to 2 (second) or 1 (first), when needed. NOTE: • If you pull and hold (not tap) the shift lever to the left (-), the transmission will downshift to the lowest gear that can be attained without overrevving the engine. The display will show the gear the vehicle is in and will limit the top gear to the one displayed. 3.6L Engine When in the DRIVE position, the first tap to the left (-) will shift down one gear and will display that gear. For example, if you are in DRIVE and are in fifth gear, when you tap the shift lever one time to the left (-), the transmission will downshift to fourth gear and the display will show 4. Another tap to the left (-) will shift the transmission into third gear. 5.7L Engine On vehicles equipped with the 5.7L engine, use of ERS (or TOW/HAUL mode) also enables an additional underdrive gear which is not normally used during throughgear accelerations. This additional gear improves vehicle performance and cooling capability when towing a trailer on certain grades. ERS 1, 2, and 3 are underdrive gears; • If you push and hold (not tap) the shift lever to the ERS 4 is direct drive. ERS 5 (Overdrive) is the same as the right (+), the transmission will exit the gear limiting normal 4th gear. When in the DRIVE position in first mode and shift to the appropriate gear. The display through fourth gear, the first tap to the left (-) will display will read ЉDЉ.