2010 Jeep Grand Cherokee Owner's Manual - Page 248

STARTING AND OPERATING 247 shifts the transmission into ERS 3 (third gear), the trans- transmission will downshift to fourth gear and the dismission will never shift above third gear, but can shift play will show 4. Another tap to the left (-) will shift the transmission into third gear. 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. • If you pull and hold (not tap) the shift lever to the right (+), the transmission will exit the gear limiting mode and shift to the appropriate gear. The display will read D. 3.7L 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 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; ERS 4 is direct drive. ERS 5 (Overdrive) is the same as the normal fourth gear. When in the DRIVE position in first through fourth gear, the first tap to the left (-) will display the ERS designation for the current gear (the transmission will not downshift). For example, if you are in DRIVE and are in third (direct) gear, when you tap the shift lever one time to the left (-), the display will show 4 (ERS 4 is direct gear). Another tap to the left (-) will shift the transmission down to ERS 3 (the added underdrive 5