engine JEEP GRAND CHEROKEE 2013 WK2 / 4.G Service Manual

NOTE:
•It is not necessary to move the temperature settings for
cold or hot vehicles. The system automatically adjusts
the temperature, mode and fan speed to provide
comfort as quickly as possible.
•The temperature can be displayed in U.S. or Metric
units by selecting the US/M customer-programmable
feature. Refer to the “Electronic Vehicle Information
Center (EVIC) — Customer-Programmable Features
(SETUP)” in this section of the manual.
To provide you with maximum comfort in the Automatic
mode, during cold start-ups, the blower fan will remain
on low until the engine warms up. The blower will
increase in speed and transition into Auto mode.
Manual Operation
This system offers a full complement of manual override
features.NOTE:Each of these features operate independently
from each other. If any one feature is controlled manually,
temperature control will continue to operate automati-
cally.
Blower Control
There are seven fixed blower speeds.
Use the outer dial control to regulate the
amount of air forced through the system
in any mode you select. The blower
speed increases as you move the control
clockwise and decreases when you move
the control counter-clockwise.
The blower fan speed can be set to any fixed speed by
adjusting the blower control outer dial. The fan will now
operate at a fixed speed until additional speeds are selected.
This allows the front occupants to control the volume of air
circulated in the vehicle and cancel the Auto mode.
426 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE:In cold weather, use of Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in the Defrost modes to improve
window clearing operation. Recirculation will be dis-
abled automatically if Defrost is selected.
Operating Tips
Window Fogging
Windows will fog on the inside when the humidity inside
the vehicle is high. This often occurs in mild or cool
temperatures when it’s rainy or humid. In most cases,
turning the air conditioning (pressing the A/C button) on
will clear the fog. Adjust the temperature control, air
direction, and blower speed to maintain comfort.
As the temperature gets colder, it may be necessary to
direct air onto the windshield. Adjust the temperature
control and blower speed to maintain comfort. Higherblower speeds will reduce fogging. Interior fogging on
the windshield can be quickly removed by selecting the
Defrost mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.Summer Operation
NOTE:In some cases during high temperature trailer
tow operation the Air Conditioning system performance
may be reduced. This is to help protect the engine from
overheating during the high load condition.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 429

STARTING AND OPERATING
CONTENTS
STARTING PROCEDURES................439
▫Automatic Transmission................439
▫Keyless Enter-N-Go™..................440
▫Normal Starting.......................441
▫Extreme Cold Weather
(Below –20°F Or 29°C)................443
▫If Engine Fails To Start.................443
▫After Starting........................445
ENGINE BLOCK HEATER — IF EQUIPPED . . .445AUTOMATIC TRANSMISSION............446
▫Key Ignition Park Interlock...............447
▫Brake/Transmission Shift Interlock System . . .448
▫Five-Speed Automatic Transmission
(3.6L Engine) — If Equipped.............448
▫Gear Ranges.........................449
▫Six-Speed Automatic Transmission
(5.7L Engine) — If Equipped.............456
▫Gear Ranges.........................457
5

POWER STEERING.....................487
▫3.6L Engine..........................487
▫5.7L Engine..........................489
▫Power Steering Fluid Check..............490
FUEL SAVER TECHNOLOGY 5.7L ENGINE
ONLY – IF EQUIPPED...................491
PARKING BRAKE......................491
ELECTRONIC BRAKE CONTROL SYSTEM. . . .494
▫Anti-Lock Brake System (ABS)............494
▫Traction Control System (TCS)............494
▫Brake Assist System (BAS)...............495
▫Electronic Roll Mitigation (ERM)..........496
▫Electronic Stability Control (ESC)..........497▫Trailer Sway Control (TSC)..............500
▫Hill Start Assist (HSA).................500
▫Ready Alert Braking – If Equipped.........503
▫Rain Brake Support – If Equipped..........503
▫Hill Descent Control (HDC) — Four-Wheel
Drive Models With MP3023 Two-Speed Transfer
Case Only..........................504
▫ESC Activation/Malfunction Indicator Light
And ESC OFF Indicator Light............506
TIRE SAFETY INFORMATION.............507
▫Tire Markings........................507
▫Tire Identification Number (TIN)...........511
▫Tire Terminology And Definitions..........512
▫Tire Loading And Tire Pressure...........513
5
STARTING AND OPERATING 435

TIRES — GENERAL INFORMATION.........518
▫Tire Pressure........................518
▫Tire Inflation Pressures.................519
▫Tire Pressures For High Speed Operation. . . .521
▫Radial Ply Tires......................521
▫All Season Tires – If Equipped............521
▫Summer Or Three Season Tires – If Equipped. .522
▫Snow Tires..........................522
▫Spare Tire Matching Original Equipped Tire And
Wheel – If Equipped...................523
▫Compact Spare Tire – If Equipped.........523
▫Full Size Spare – If Equipped.............524
▫Limited-Use Spare – If Equipped..........524▫Tire Spinning........................525
▫Tread Wear Indicators..................526
▫Life Of Tire.........................526
▫Replacement Tires.....................527
TIRE CHAINS (TRACTION DEVICES).......528
TIRE ROTATION RECOMMENDATIONS.....530
TIRE PRESSURE MONITOR SYSTEM (TPMS) . .531
▫Base System.........................534
▫Premium System – If Equipped............536
▫General Information...................540
FUEL REQUIREMENTS..................541
▫3.6L Engine – If Equipped...............541
▫5.7L Engine – If Equipped...............541
436 STARTING AND OPERATING

▫Reformulated Gasoline.................542
▫Gasoline/Oxygenate Blends..............542
▫E-85 Usage In Non-Flex Fuel Vehicles.......542
▫MMT In Gasoline.....................543
▫Materials Added To Fuel................544
▫Fuel System Cautions...................544
▫Carbon Monoxide Warnings.............545
FLEXIBLE FUEL (3.6L ENGINE ONLY) — IF
EQUIPPED...........................546
▫E-85 General Information...............546
▫Ethanol Fuel (E-85)....................547
▫Fuel Requirements....................547
▫Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles.......548▫Starting............................549
▫Cruising Range.......................549
▫Replacement Parts....................549
▫Maintenance........................549
ADDING FUEL........................550
▫Fuel Filler Cap (Gas Cap)...............550
▫Loose Fuel Filler Cap Message............553
VEHICLE LOADING....................553
▫Certification Label....................553
TRAILER TOWING.....................556
▫Common Towing Definitions.............556
▫Trailer Hitch Classification...............561
5
STARTING AND OPERATING 437

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust the
inside and outside mirrors, fasten your seat belt, and if
present, instruct all other occupants to buckle their seat
belts.
WARNING!
•When leaving the vehicle, always remove the key
fob from the ignition and lock your vehicle.
•Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be
seriously or fatally injured. Children should be
warned not to touch the parking brake, brake pedal
or the shift lever.
(Continued)
WARNING!(Continued)
•Do not leave the key fob in or near the vehicle (or
in a location accessible to children), and do not
leave a vehicle equipped with Keyless Enter-N-
Go™ in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or move
the vehicle.
Automatic Transmission
The shift lever must be in the NEUTRAL or PARK
position before you can start the engine. Apply the brakes
before shifting into any driving gear.5
STARTING AND OPERATING 439

CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
•Do not shift from REVERSE, PARK, or NEUTRAL
into any forward gear when the engine is above
idle speed.
•Shift into PARK only after the vehicle has come to
a complete stop.
•Shift into or out of REVERSE only after the vehicle
has come to a complete stop and the engine is at
idle speed.
•Before shifting into any gear, make sure your foot
is firmly on the brake pedal.
Using Fob With Integrated Key (Tip Start)
NOTE:Normal starting of either a cold or a warm
engine is obtained without pumping or pressing the
accelerator pedal.Do notpress the accelerator. Use the Fob with Integrated
Key to briefly turn the ignition switch to the START
position and release it as soon as the starter engages. The
starter motor will continue to run, and it will disengage
automatically when the engine is running. If the engine
fails to start, the starter will disengage automatically in
10 seconds. If this occurs, turn the ignition switch to the
LOCK position, wait 10 to 15 seconds, then repeat the
“Normal Starting” procedure.
Keyless Enter-N-Go™
This feature allows the driver to operate
the ignition switch with the push of a
button, as long as the ENGINE START/
STOP button is installed and the Remote
Start/Keyless Enter-N-Go™ FOBIK is in
the passenger compartment.
440 STARTING AND OPERATING

Installing And Removing The ENGINE
START/STOP Button
Installing The Button
1. Remove the key fob from the ignition switch.
2. Insert the ENGINE START/STOP button into the
ignition switch with the lettering facing up and read-
able.
3. Press firmly on the center of the button to secure it into
position.
Removing The Button
1. The ENGINE START/STOP button can be removed
from the ignition switch for key fob use.
2. Insert the metal part of the emergency key under the
chrome bezel at the 6 o’clock position and gently pry
the button loose.NOTE:The ENGINE START/STOP button should only
be removed or inserted with the ignition in the OFF
position (OFF position for Keyless Enter-N-Go™).
Normal Starting
Using The ENGINE START/STOP Button
1. The transmission must be in PARK or NEUTRAL.
2. Press and hold the brake pedal while pressing the
ENGINE START/STOP button once.
3. The system takes over and attempts to start the
vehicle. If the vehicle fails to start, the starter will
disengage automatically after 10 seconds.
4. If you wish to stop the cranking of the engine prior to
the engine starting, press the button again.
NOTE:Normal starting of either a cold or a warm
engine is obtained without pumping or pressing the
accelerator pedal.
5
STARTING AND OPERATING 441

To Turn Off The Engine Using ENGINE
START/STOP Button
1. Place the shift lever in PARK, then press and release
the ENGINE START/STOP button.
2. The ignition switch will return to the OFF position.
3. If the shift lever is not in PARK, the ENGINE START/
STOP button must be held for two seconds and vehicle
speed must be above 5 mph (8 km/h) before the
engine will shut off. The ignition switch position will
remain in the ACC position until the shift lever is in
PARK and the button is pressed twice to the OFF
position. If the shift lever is not in PARK and the
ENGINE START/STOP button is pressed once, the
EVIC (if equipped) will display a “Vehicle Not In
Park” message and the engine will remain running.
Never leave a vehicle out of the PARK position, or it
could roll.NOTE:If the ignition switch is left in the ACC or RUN
(engine not running) position and the transmission is in
PARK, the system will automatically time out after
30 minutes of inactivity and the ignition will switch to the
OFF position.
Keyless Enter-N-Go™ Functions – With Driver ’s
Foot OFF The Brake Pedal/Clutch Pedal (In PARK
Or NEUTRAL Position)
The Keyless Enter-N-Go™ feature operates similar to an
ignition switch. It has four positions, OFF, ACC, RUN
and START. To change the ignition switch positions
without starting the vehicle and use the accessories
follow these steps.
•Starting with the ignition switch in the OFF position:
•
Press the ENGINE START/STOP button once to change
the ignition switch to the ACC position (EVIC displays
“IGNITION MODE ACCESSORY”),
442 STARTING AND OPERATING