2012 JEEP GRAND CHEROKEE service reset

•Eco — Fuel Saver Indicator
• Terrain Settings — Automatic
• Terrain Settings — Rock
• Terrain Settings — Sand/Mud
• Terrain Settings — Snow
• Terrain Settings — Sport
• Sport Not Available In 4 Low 4 High Is
Required
• Rock Not Available In 4 Low 4 High Is
Required
• To Tow Vehicle Safely, Read Neutral Shift
Procedure In Owners Manual
• For 4x4 Low Slow Below 5 Mph Or 8 Kph Put
Trans In N Press 4 Low
• For 4x4 High Slow Below 5 Mph Or 8 Kph Put
Trans In N Press 4 Low
• Terrain System Settings Not Available
• Raising Vehicle Ride Height (with icon)
• Lowering Vehicle Ride Height (with icon) •
Normal Vehicle Ride Height — This message
is displayed (for five seconds) when the
vehicle has achieved the Normal Vehicle
Ride Height.
• Off Road Ride Height Level 1 — This mes-
sage is displayed (for five seconds) when
the vehicle has achieved the Off Road
Height Level 1.
• Off Road Ride Height Level 2 — This mes-
sage is displayed (for five seconds) when
the vehicle has achieved the Off Road
Height Level 2.
• Vehicle Lowered To Entry/Exit (Park) Height
— This message is displayed (for five sec-
onds) when the vehicle has achieved the
Park Height.
• Entry/Exit (Park) Height in Progress — This
message is displayed (for five seconds)
when the request is made to go into Entry/
Exit Height while the vehicle speed is be-
tween 15 and 25 mph. This shows that the
request has been recognized and will lower
to Entry/Exit height when vehicle is below
15 mph. •
Service Air Suspension System — This is
displayed when a fault has occurred in the
system. The system will have limited opera-
tion at that point.
• Immediate Air Suspension Service/Repair
Required — This is displayed when a fault
has occurred in the system which results in a
complete system shutdown. The system will
be non operational at that point.
• Reduce Speed To Maintain Selected Ride
Height — This message is displayed in ad-
vance warning to the driver that the vehicle
will be moved to the next lower preset posi-
tion unless the speed is reduced.
• Selected Ride Height Not Permitted — The
vehicle speed is too high to enter one of the
preset levels (Entry/Exit Level/Off Road Ride
Height Level 1/Off Road Ride Height Level
2).
• Air Suspension System Cooling Down –
Please Wait — This message is displayed if
the compressor temperature level is too
high. Level control is suspended until the
compressor has cooled down.
168

•Engine Temperature Warning Light
This light warns of an overheated en-
gine condition. As temperatures rise
and the gauge approaches H,this
indicator will illuminate and a single
chime will sound after reaching a set threshold.
Further overheating will cause the temperature
gauge to pass H,a continuous chime will occur
until the engine is allowed to cool.
If the light turns on while driving, safely pull
over and stop the vehicle. If the A/C system is
on, turn it off. Also, shift the transmission into
NEUTRAL and idle the vehicle. If the tempera-
ture reading does not return to normal, turn the
engine off immediately and call for service.
Refer to “If Your Engine Overheats” in “What To
Do In Emergencies” for more information.
• Transmission Temperature Light
This light indicates that there is
excessive transmission fluid tem-
perature that might occur with se-
vere usage such as trailer towing.
It may also occur when operating
the vehicle in a high torque con-
verter slip condition, such as 4-wheel-drive
operation (e.g., snow plowing, off- road opera- tion). If this light comes on, stop the vehicle and
run the engine at idle or faster, with the trans-
mission in NEUTRAL until the light goes off.
CAUTION!
Continuous driving with the Transmission
Temperature Indicator illuminated will eventu-
ally cause severe transmission damage or
transmission failure.
WARNING!
If the Transmission Temperature Warning
Light is illuminated and you continue operat-
ing the vehicle, in some circumstances you
could cause the fluid to boil over, come in
contact with hot engine or exhaust compo-
nents and cause a fire.
Engine Oil Change Indicator System
Oil Change Due
Your vehicle is equipped with an engine oil
change indicator system. The “Oil Change
Due” message will flash in the EVIC display for
approximately 10 seconds after a single chime
has sounded, to indicate the next scheduled oil
change interval. The engine oil change indica-
tor system is duty cycle based, which means
the engine oil change interval may fluctuate,
dependent upon your personal driving style.
Unless reset, this message will continue to
display each time you turn the ignition switch to
the ON/RUN position or cycle the ignition to the
ON/RUN position if equipped with Keyless
Enter-N-Go. To turn off the message temporar-
ily, press and release the MENU button. To
reset the oil change indicator system (after
performing the scheduled maintenance) refer
to the following procedure.
Vehicles Equipped With Keyless
Enter-N-Go
1. Without pressing the brake pedal, push the
ENGINE START/STOP button and cycle the
ignition to the ON/RUN position (Do not start
the engine.)
2. Fully depress the accelerator pedal, slowly,
three times within 10 seconds.
172

Pressing the center button will make the radio
switch between the various modes available
(AM/FM/SAT/CD/HDD/AUX/VES, etc.).
The left-hand control is a rocker-type switch
with a pushbutton in the center. The function of
the left-hand control is different depending on
which mode you are in.
The following describes the left-hand control
operation in each mode.
Radio OperationPressing the top of the switch will “Seek” up for
the next listenable station and pressing the
bottom of the switch will “Seek” down for the
next listenable station.
The button located in the center of the left-hand
control will tune to the next preset station that
you have programmed in the radio preset
pushbutton.
CD PlayerPressing the top of the switch once will go to
the next track on the CD. Pressing the bottom of
the switch once will go to the beginning of the
current track, or to the beginning of the previ-ous track if it is within one second after the
current track begins to play.
If you press the switch up or down twice, it
plays the second track; three times, it will play
the third, etc.
The center button on the left side rocker switch
has no function for a single-disc CD player.
However, when a multiple-disc CD player is
equipped on the vehicle, the center button will
select the next available CD in the player.
CD/DVD DISC MAINTENANCETo keep a CD/DVD in good condition, take the
following precautions:
1. Handle the disc by its edge; avoid touching
the surface.
2. If the disc is stained, clean the surface with
a soft cloth, wiping from center to edge.
3. Do not apply paper or tape to the disc; avoid
scratching the disc.
4. Do not use solvents such as benzene, thin-
ner, cleaners, or anti-static sprays.
5. Store the disc in its case after playing.6. Do not expose the disc to direct sunlight.
7. Do not store the disc where temperatures
may become too high.
NOTE:
If you experience difficulty in playing a par-
ticular disc, it may be damaged (i.e.,
scratched, reflective coating removed, a
hair, moisture or dew on the disc) oversized,
or have protection encoding. Try a known
good disc before considering disc player
service.RADIO OPERATION AND MOBILE
PHONES
Under certain conditions, the mobile phone
being on in your vehicle can cause erratic or
noisy performance from your radio. This condi-
tion may be lessened or eliminated by relocat-
ing the mobile phone antenna. This condition is
not harmful to the radio. If your radio perfor-
mance does not satisfactorily “clear” by the
repositioning of the antenna, it is recom-
mended that the radio volume be turned down
or off during mobile phone operation when not
using Uconnect™ (if equipped).
204

of which forward gear is selected. PARK, RE-
VERSE, and NEUTRAL will continue to operate.
The Malfunction Indicator Light (MIL) may be
illuminated. Limp Home Mode allows the ve-
hicle to be driven to an authorized dealer for
service without damaging the transmission.
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 transmis-
sion 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 gear 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 gear.
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 braking
on a slippery surface. The drive wheels could
lose their grip and the vehicle could skid,
causing an accident or personal injury.
Screen Display
12 34D
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.
225

If the transmission operating temperature ex-
ceeds normal operating limits, the powertrain
controller will modify the transmission shift
schedule and expand the range of torque con-
verter clutch engagement. This is done to pre-
vent transmission damage due to overheating.
If the transmission becomes extremely hot, the
“Transmission Temperature Warning Light” may
illuminate and the transmission may downshift
out of Overdrive 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.
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 transmis-
sion 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.
229

CAUTION!
Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift qual-
ity and/or torque converter shudder. Using a
transmission fluid other than the manufactur-
er’s recommended fluid will require more fre-
quent fluid and filter changes. Refer to “Fluids,
Lubricants, and Genuine Parts” in “Maintain-
ing Your Vehicle” for further information.
Special Additives
Automatic Transmission Fluid (ATF) is an engi-
neered product and its performance may be
impaired by supplemental additives. Therefore,
do not add any fluid additives to the transmis-
sion. The only exception to this policy is the use
of special dyes to aid in detecting fluid leaks. In
addition, avoid using transmission sealers as
they may adversely affect seals.CAUTION!
Do not use chemical flushes in your transmis-
sion as the chemicals can damage your trans-
mission components. Such damage is not
covered by the New Vehicle Limited Warranty.
Fluid Level Check – 3.6L And 3.0L Diesel
Engine
Routine fluid level checks are not required. For
this reason, the dipstick is omitted. Your autho-
rized dealer can check your transmission fluid
level using a special service dipstick.
If you notice fluid leakage or transmission mal-
function, have your authorized dealer check
the transmission fluid level. Operation with an
improper fluid level can greatly reduce the life
of your transmission.CAUTION!
• Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift
quality and/or torque converter shudder.
Using a transmission fluid other than that
recommended by the manufacturer will re-
quire more frequent fluid and filter changes.
Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for fur-
ther information.
• The fluid level is preset at the factory and it
does not require adjustment under normal
operating conditions. If a transmission fluid
leak occurs, visit your authorized dealer
immediately. Severe damage to the trans-
mission may occur. Your authorized dealer
has the proper tools to adjust the fluid level
accurately.
314

MAINTENANCE SCHEDULE
Maintenance Schedule – Gasoline
Engine
The Scheduled Maintenance services listed in
this manual must be done at the times or
mileages specified to protect your vehicle war-
ranty and ensure the best vehicle performance
and reliability. More frequent maintenance may
be needed for vehicles in severe operating
conditions, such as dusty areas and very short
trip driving. Inspection and service should also
be done anytime a malfunction is suspected.
The oil change indicator system will remind you
that it is time to take your vehicle in for sched-
uled maintenance.
On Electronic Vehicle Information Center
(EVIC) equipped vehicles “Oil Change Re-quired” will be displayed in the EVIC and a
single chime will sound, indicating that an oil
change is necessary.
The oil change indicator message will illumi-
nate approximately 7,000 miles (11 200 km)
after the most recent oil change was per-
formed. Have your vehicle serviced as soon as
possible, within 500 miles (800 km).
NOTE:
•
The oil change indicator message will not
monitor the time since the last oil change.
Change your vehicles oil if it has been
6 months since your last oil change even
if the oil change indicator message is
NOT illuminated.
• Change your engine oil more often if you
drive your vehicle off-road for an ex-
tended period of time. •
Under no circumstances should oil
change intervals exceed 7,500 miles
(12 000 km) or 6 months, whichever
comes first.
Your authorized dealer will reset the oil change
indicator message after completing the sched-
uled oil change. If this scheduled oil change is
performed by someone other than your autho-
rized dealer the message can be reset by
referring to the steps described under ”Elec-
tronic Vehicle Information Center” in “Under-
standing Your Instrument Panel” for further in-
formation.
332