Jeep 2011 Grand Cherokee - Owner Manual - Manual (Page 354)

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 trans-
mission 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.
• If you push 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
ЉDЉ.
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 dis-
play 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 under-
drive gear which is not normally used during through-
gear 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 4th gear. When in the DRIVE position in first
through fourth gear, the first tap to the left (-) will display
352 STARTING AND OPERATING