2013 JEEP GRAND CHEROKEE ECO mode

In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition switch to the LOCK/OFF
position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the transmission
will return to normal operation.
NOTE:
Even if the transmission can be reset, we
recommend that you visit your authorized
dealer at your earliest possible conve-
nience. Your authorized dealer has diagnos-
tic equipment to determine if the problem
could recur. If the transmission cannot be
reset, authorized dealer service is required.Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control
allows the driver to limit the highest available
gear when the shift lever is in the DRIVE
position. For example, if you shift the transmis-
sion into 3 (third gear), the transmission will
never shift above third gear, but will shift down
into second and first gears normally.
You can switch between DRIVE and ERS mode
at any vehicle speed. When the shift lever is in
the DRIVE position, the transmission will oper-
ate automatically, shifting between all available
gears. Tapping the shift lever to the left (-) will
downshift the transmission, activate ERS mode,
display the current gear in the instrument clus-
ter, and maintain that gear as the top available
gear. Once in ERS mode, tapping the shift lever
to the left (-) or right (+) will change the top
available gears.
To exit ERS mode, simply press and hold the
shift lever to the right (+) until “D” is once again
displayed in the shift lever position indicator in
the instrument cluster.WARNING!
Do not downshift for additional engine brak-
ing on a slippery surface. The drive wheels
could lose their grip and the vehicle could
skid, causing a collision or personal injury.
Screen Display
12 3 4 D
Actual Gear(s)
Allowed 1 1-2 1-3 1-4 1-5
NOTE:
To select the proper gear position for maxi-
mum deceleration (engine braking), simply
press and hold the shift lever to the left (-).
The transmission will shift to the range from
which the vehicle can best be slowed down.
230

DRIVE
This range should be used for most city and
highway driving. It provides the smoothest up-
shifts and downshifts, and the best fuel
economy. The transmission automatically up-
shifts through underdrive first and second
gears, direct third gear and overdrive fourth and
fifth gears. The DRIVE position provides opti-
mum driving characteristics under all normal
operating conditions.
To access all six available gears, you must use
the Electronic Range Select (ERS) shift control
(refer to “Electronic Range Select (ERS) Opera-
tion” in this section).
When frequent transmission shifting occurs
(such as when operating the vehicle under
heavy loading conditions, in hilly terrain, travel-
ing into strong head winds, or while towing
heavy trailers), use the Electronic Range Select
(ERS) shift control (refer to “Electronic Range
Select (ERS) Operation” in this section) to se-
lect a lower gear range. Under these conditions,
using a lower gear range will improve perfor-
mance and extend transmission life by reducing
excessive shifting and heat buildup.If the transmission temperature exceeds normal
operating limits, the powertrain controller will
modify the transmission shift schedule and ex-
pand the range of torque converter clutch en-
gagement. This is done to prevent transmission
damage due to overheating.
If the transmission becomes extremely hot or is
in danger of overheating, the “Transmission
Temperature Warning Light” may illuminate and
the transmission may operate differently until
the transmission cools down.
NOTE:
Use caution when operating a heavily
loaded vehicle at low speeds (such as tow-
ing a trailer up a steep grade, or in stop-
and-go traffic) during hot weather. In these
conditions, torque converter slip can im-
pose a significant additional heat load on
the cooling system. Downshifting the trans-
mission to the lowest possible gear (when
climbing a grade), or shifting to NEUTRAL
(when stopped in heavy traffic) can help to
reduce this excess heat generation.
During cold temperatures, transmission opera-
tion may be modified depending on engine andtransmission temperature as well as vehicle
speed. This feature improves warm up time of
the engine and transmission to achieve maxi-
mum efficiency. Engagement of both the torque
converter clutch and the top overdrive gear are
inhibited until the transmission fluid is warm
(refer to the “Note” under “Torque Converter
Clutch” in this section). During extremely cold
temperatures (-16°F [-27°C] or below), opera-
tion may briefly be limited to first and direct
gears only. Normal operation will resume once
the transmission temperature has risen to a
suitable level.
Transmission Limp Home Mode
Transmission function is monitored electroni-
cally for abnormal conditions. If a condition is
detected that could result in transmission dam-
age, Transmission Limp Home Mode is acti-
vated. In this mode, the transmission remains in
direct gear regardless of which forward gear is
selected. PARK, REVERSE, and NEUTRAL will
continue to operate. The Malfunction Indicator
Light (MIL) may be illuminated. Limp Home
Mode allows the vehicle to be driven to an
authorized dealer for service without damaging
the transmission.
234

In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition switch to the LOCK/OFF
position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6.
Shift into the desired gear range. If the prob-
lem is no longer detected, the transmission will
return to normal operation.
NOTE:
Even if the transmission can be reset, we
recommend that you visit your authorized
dealer at your earliest possible conve-
nience. Your authorized dealer has diagnos-
tic equipment to determine if the problem
could recur. If the transmission cannot be
reset, authorized dealer service is required. Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control
allows the driver to limit the highest available
gear when the shift lever is in the DRIVE
position. For example, if you shift the transmis-
sion into 3 (third gear), the transmission will
never shift above third gear, but will shift down
into second and first gears normally.
Use of ERS (or TOW/HAUL mode) also enables
an additional underdrive gear which is not nor-
mally used during through-gear accelerations.
This additional gear can improve vehicle perfor-
mance and cooling capability when towing a
trailer on certain grades. In ERS mode, gears 1
though 3 are underdrive gears, and ERS 4 is
direct drive. ERS 5 and 6 (Overdrive gears ) are
the same as the normal fourth and fifth gears.
You can switch between DRIVE and ERS mode at
any vehicle speed. When the shift lever is in the
DRIVE position, the transmission will operate
automatically, shifting between all available
gears. Tapping the shift lever to the left (-) will
activate ERS mode, display the current gear in
the instrument cluster, and maintain that gear as
the top available gear. Once in ERS mode, tap-
ping the shift lever to the left (-) or right (+) will
change the top available gear.
The instrument cluster display will show the
requested top gear limit, however the transmis-
sion will not downshift to the requested gear if
doing so would overspeed the engine. The
transmission will downshift once the vehicle
speed has slowed sufficiently.
To exit ERS mode, simply press and hold the
shift lever to the right (+) until “D” is once again
displayed in the shift lever position indicator in
the instrument cluster.
WARNING!
Do not downshift for additional engine brak-
ing on a slippery surface. The drive wheels
could lose their grip and the vehicle could
skid, causing a collision or personal injury.
NOTE:
To select the proper gear position for maxi-
mum deceleration (engine braking), simply
press and hold the shift lever to the left (-).
The transmission will shift to the range from
which the vehicle can best be slowed down.
235

Overdrive Operation
The automatic transmission includes an elec-
tronically controlled Overdrive (fourth and fifth
gears). The transmission will automatically shift
into Overdrive if the following conditions are
present:
•the shift lever is in the DRIVE position,
• the transmission fluid has reached an ad-
equate temperature,
• the engine coolant has reached an adequate
temperature,
• vehicle speed is sufficiently high,
• the driver is not heavily pressing the accel-
erator, and
•
the TOW/HAUL switch has not been activated.
When To Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer,
carrying a heavy load, etc., and frequent trans-
mission shifting occurs, press the TOW/HAUL
switch to activate TOW/HAUL mode. This will
improve performance and reduce the potential
for transmission overheating or failure due to
excessive shifting. When operating in TOW/ HAUL mode, transmission upshifts are delayed,
and the transmission will automatically down-
shift (for engine braking) during steady braking
maneuvers.
The “TOW/HAUL Indicator Light” will illuminate
in the instrument cluster to indicate that TOW/
HAUL mode has been activated. Pressing the
switch a second time restores normal operation.
Normal operation is always the default at en-
gine start-up. If TOW/HAUL mode is desired,
the switch must be pressed each time the
engine is started.
Torque Converter Clutch
A feature designed to improve fuel economy
has been included in the automatic transmis-
sion on your vehicle. A clutch within the torque
converter engages automatically at calibrated
speeds. This may result in a slightly different
feeling or response during normal operation in
the upper gears. When the vehicle speed drops
or during some accelerations, the clutch auto-
matically disengages.
NOTE:
•
The torque converter clutch will not en-
gage, and the transmission will not shift
into the top overdrive gear, until the trans-
mission fluid and engine coolant are
warm [usually after 1 to 3 miles (2 to 5 km)
of driving]. Because top gear is disabled,
and engine speed is higher when the
torque converter clutch is not engaged, it
may seem as if the transmission is not
shifting properly when cold. This is nor-
mal. Using the Electronic Range Select
(ERS) shift control, when the transmis-
sion is sufficiently warm, will demon-
strate that the transmission is able to shift
into and out of Overdrive.
TOW/HAUL Switch
236

•If the vehicle has not been driven for
several days, the first few seconds of
operation after shifting the transmission
into gear may seem sluggish. This is due
to the fluid partially draining from the
torque converter into the transmission.
This condition is normal and will not
cause damage to the transmission. The
torque converter will refill within five sec-
onds after starting the engine.
FOUR-WHEEL DRIVE
OPERATION
Quadra-Trac II® Operating
Instructions/Precautions
The Quadra-Trac II® transfer case is fully auto-
matic in the normal driving 4WD AUTO mode.
The Quadra-Trac II® transfer case provides
three mode positions:
•4WD HI
• NEUTRAL
• 4WD LOW This transfer case is fully automatic in the 4WD
HI mode.
When additional traction is required, the 4WD
LOW position can be used to lock the front and
rear driveshafts together and force the front and
rear wheels to rotate at the same speed. The
4WD LOW position is intended for loose, slip-
pery road surfaces only. Driving in the 4WD
LOW position on dry, hard-surfaced roads may
cause increased tire wear and damage to drive-
line components.
When operating your vehicle in 4WD LOW, the
engine speed is approximately three times that
of the 4WD HI position at a given road speed.
Take care not to overspeed the engine and do
not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles
depends on tires of equal size, type, and cir-
cumference on each wheel. Any difference will
adversely affect shifting and cause damage to
the transfer case.
Because four-wheel drive provides improved
traction, there is a tendency to exceed safe
turning and stopping speeds. Do not go faster
than road conditions permit.
WARNING!
You or others could be injured if you leave
the vehicle unattended with the transfer case
in the NEUTRAL (N) position without first
fully engaging the parking brake. The trans-
fer case NEUTRAL (N) position disengages
both the front and rear driveshafts from the
powertrain and will allow the vehicle to move
regardless of the transmission position. The
parking brake should always be applied
when the driver is not in the vehicle.
237

Quadra-Drive® II System – If
Equipped
The optional Quadra-Drive® II System features
two torque transfer couplings. The couplings
include an Electronic Limited-Slip Differential
(ELSD) rear axle and the Quadra-Trac II®
transfer case. The optional ELSD axle is fully
automatic and requires no driver input to oper-
ate. Under normal driving conditions, the unit
functions as a standard axle, balancing torque
evenly between left and right wheels. With a
traction difference between left and right
wheels, the coupling will sense a speed differ-
ence. As one wheel begins to spin faster than
the other, torque will automatically transfer from
the wheel that has less traction, to the wheel
that has traction. While the transfer case and
axle coupling differ in design, their operation is
similar. Follow the Quadra-Trac II® transfer
case shifting information, preceding this sec-
tion, for shifting this system.
SELEC-TERRAIN™ — IF
EQUIPPED
DescriptionSelec-Terrain™ combines the capabilities of the
vehicle control systems, along with driver input,
to provide the best performance for all terrains.Selec-Terrain™ consists of the following posi-
tions:
•
Sport – Dry weather, on-road calibration.
Only available in 4WD High range. Perfor-
mance based tuning that provides a rear
wheel drive feel but with improved handling
and acceleration over a two-wheel drive ve-
hicle. The Electronic Stability Control will set
to allow more driver control of vehicle while
maintaining safe handling controls. The ve-
hicle will lower (if equipped with Air Suspen-
sion) to Aero Mode in High Range. 4WD Low
is not available in SPORT mode, if 4WD Low
is selected the Selec-Terrain™ will automati-
cally switch back to AUTO.
• Snow – Tuning set for additional stability in
inclement weather. Use on and off road on
loose traction surfaces such as snow. When
in Snow mode (depending on certain operat-
ing conditions), the transmission may use
second gear (rather than first gear) during
launches, to minimize wheel slippage. If
equipped with air suspension, the level will
change to Normal Ride Height (NRH) if the
transfer case is in high range. The level will
change to Off-Road 1 if the transfer case is in
Low range.
Selec-Terrain™ Switch
240

•Off-Road 1 (OR1) (Raises the vehicle ap-
proximately 1.3 in (33 mm) – This is the
primary position for all off-road driving until
OR2 is needed. A smoother and more com-
fortable ride will result. Press the “Up” button
once from the NRH position while the vehicle
speed is below 38 mph (61 km/h). When in
the OR1 position, if the vehicle speed re-
mains between 40 mph (64 km/h) and
50 mph (80 km/h) for greater than 20 sec-
onds or if the vehicle speed exceeds 50 mph
(80 km/h), the vehicle will be automatically
lowered to NRH. Refer to “Off-Road Driving
Tips” in “Starting and Operating” for further
information.
• Off-Road 2 (OR2) (Raises the vehicle ap-
proximately 2.6 in (65 mm) – This position
is intended for off-roading use only where
maximum ground clearance is required. To
enter OR2, press the “Up” button twice from
the NRH position or once from the OR1
position while vehicle speed is below 20 mph
(32 km/h). While in OR2, if the vehicle speed exceeds 25 mph (40 km/h) the vehicle height
will be automatically lowered to OR1. Refer
to “Off-Road Driving Tips” in “Starting and
Operating” for further information.
• Aero Mode (Lowers the vehicle approxi-
mately 0.5 in (13 mm) – This position pro-
vides improved aerodynamics by lowering
the vehicle. The vehicle will automatically
enter Aero Mode when the vehicle speed
remains between 62 mph (99 km/h) and
66 mph (106 km/h) for greater than 20 sec-
onds or if the vehicle speed exceeds 66 mph
(106 km/h). The vehicle will return to NRH
from Aero Mode if the vehicle speed remains
between 30 mph (48 km/h) and 35 mph
(56 km/h) for greater than 20 seconds or if
the vehicle speed falls below 30 mph
(48 km/h). The vehicle will enter Aero Mode,
regardless of vehicle speed if the Selec-
Terrain™ knob is turned to the “SPORT”
position. Turning the Selec-Terrain™ knob to
the “AUTO” position will return the system to
normal operation. •
Park Mode (Lowers the vehicle approxi-
mately 1.5 in (38 mm) – This position lowers
the vehicle for easier passenger entry and
exit as well as lowering the rear of the vehicle
for easier loading and unloading of cargo. To
enter Park Mode, press the “Down” button
once while the vehicle speed is below
25 mph (40 km/h). Once the vehicle speed
goes below 15 mph (24 km/h) the vehicle
height will begin to lower. If the vehicle speed
remains between 15 mph (24 km/h) and
25 mph (40 km/h) for greater than 60 sec-
onds, or the vehicle speed exceeds 25 mph
(40 km/h) the Park Mode change will be
cancelled. To exit Park Mode, press the “Up”
button once while in Park Mode or drive the
vehicle over 15 mph (24 km/h).
The Selec-Terrain™ switch will automatically
change the vehicle to the proper height based on
the position of the Selec-Terrain™ switch. The
height can be changed from the default Selec-
Terrain™ setting by normal use of the air suspen-
sion buttons. Refer to “Selec-Terrain™” in “Start-
ing and Operating” for further information.
242

OFF-ROAD DRIVING TIPS
NOTE:
Prior to off-road driving, remove the front air
dam to prevent damage. The front air dam is
attached to the lower front fascia with seven
quarter turn fasteners and can be removed
by hand.
Quadra-Lift™ – If EquippedWhen off-roading, it is recommended that the
lowest useable vehicle height that will clear the
current obstacle or terrain be selected. The
vehicle height should then be raised as required
by the changes in terrain.
The Selec-Terrain™ switch will automatically
change the vehicle to the optimized height
based on the Selec-Terrain™ switch position.
The vehicle height can be changed from the
default height for each Selec-Terrain™ mode by
normal use of the air suspension switches.
Refer to “Quadra-Lift™ – If Equipped” in “Start-
ing and Operating” for further information.
When To Use 4WD LOW Range – If
Equipped
When off-road driving, shift to 4WD LOW for
additional traction. This range should be limited
to extreme situations such as deep snow, mud,
or sand where additional low speed pulling
power is needed. Vehicle speeds in excess of
25 mph (40 km/h) should be avoided when in
4WD LOW range.
WARNING!
Do not drive in 4WD-LOW Range on dry
pavement; driveline damage may result.
4WD-LOW Range locks front and rear driv-
elines together and does not allow for differ-
ential action between the front to rear drive-
shafts. Driving in 4WD-LOW on pavement
will cause driveline binding and"crow-hop";
use only on wet or slippery surfaces.
Driving Through WaterAlthough your vehicle is capable of driving
through water, there are a number of precau-
tions that must be considered before entering
the water.
NOTE:
Your vehicle is capable of water fording in
up to 20 inches (51 cm) of water, while
crossing small rivers or streams. To main-
tain optimal performance of your vehicle’s
heating and ventilation system it is recom-
mended to switch the system into recircula-
tion mode during water fording.
Front Air Dam
1 — Front Bumper
2 — Front Air Dam Fasteners
245