engine overheat JEEP CHEROKEE 2017 KL / 5.G User Guide

Front Heated Seats — If Equipped
The front heated seats control buttons are located within
the Uconnect system. You can gain access to the control
buttons through the climate screen or the controls screen.
•Press the heated seat button
once to turn the HI
setting ON.
• Press the heated seat buttona second time to turn
the LO setting ON.
• Press the heated seat buttona third time to turn the
heating elements OFF.
If the HI-level setting is selected, the system will automati-
cally switch to LO-level after approximately 60 minutes of
continuous operation. At that time, the display will change
from HI to LO, indicating the change. The LO-level setting
will turn OFF automatically after approximately 45 min-
utes.
NOTE: The engine must be running for the heated seats to
operate.
Vehicles Equipped With Remote Start
On models that are equipped with remote start, the heated
seats can be programmed to come on during a remote start. This feature can be programmed through the Uconnect
system. Refer to “Uconnect Settings” in “Multimedia” for
further information.
WARNING!
•
Persons who are unable to feel pain to the skin
because of advanced age, chronic illness, diabetes,
spinal cord injury, medication, alcohol use, exhaus-
tion or other physical condition must exercise care
when using the seat heater. It may cause burns even
at low temperatures, especially if used for long
periods of time.
• Do not place anything on the seat or seatback that
insulates against heat, such as a blanket or cushion.
This may cause the seat heater to overheat. Sitting in
a seat that has been overheated could cause serious
burns due to the increased surface temperature of the
seat.
Front Ventilated Seats — If Equipped
Located in the seat cushion and seat back are fans that
draw the air from the passenger compartment and move
air through fine perforations in the seat cover to help keep
the driver and front passenger cooler in higher ambient
temperatures. The fans operate at two speeds, HI and LO.
3
GETTING TO KNOW YOUR VEHICLE 53

Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather conditions.
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corrosion
protection and to protect against engine overheating. OAT
coolant (conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is functioning
properly and the proper amount, type, and concentration
of coolant is used. Use of the air Recirculation mode during
Winter months is not recommended, because it may cause
window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of service (i.e.,
vacation) for two weeks or more, run the air conditioning
system at idle for about five minutes, in fresh air with the
blower setting on high. This will ensure adequate system
lubrication to minimize the possibility of compressor dam-
age when the system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in mild, rainy
and/or humid weather. To clear the windows, select De-
frost or Mix mode and increase the front blower speed. Do
not use the Recirculation mode without A/C for long
periods, as fogging may occur.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, and if they
enter the plenum, they could plug the water drains. In
winter months, make sure the air intake is clear of ice,
slush, and snow.
Cabin Air Filter
The climate control system filters out dust and pollen from
the air. Contact your authorized dealer to service your
cabin air filter, and to have it replaced when needed.
3
GETTING TO KNOW YOUR VEHICLE 93

Instrument Cluster Descriptions
1. Tachometer•Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Instrument Cluster Display •The instrument cluster display features a driver-
interactive display. Refer to “Instrument Cluster Dis-
play” in “Getting To Know Your Instrument Panel” for
further information.
3. Speedometer •Indicates vehicle speed.
4. Fuel Gauge •The fuel gauge shows the level of fuel in the fuel tank
when the ignition is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel door is located.
5. Temperature Gauge
•The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge will likely indicate a higher temperature
when driving in hot weather or up mountain grades. It
should not be allowed to exceed the upper limits of the
normal operating range.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats.
130 GETTING TO KNOW YOUR INSTRUMENT PANEL

Engine Temperature Warning Light
Red WarningLight What It Means
Engine Temperature Warning Light
This light warns of an overheated engine condition. As engine coolant temperatures rise and the
gauge approaches
H,this indicator will illuminate and a single chime will sound after reaching a
set threshold.
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 temperature
reading does not return to normal, turn the engine off immediately and call for service. Refer to
“If Your Engine Overheats” in “In Case Of Emergency” for further information.
Oil Temperature Warning Light
Red Telltale Light What It Means
Oil Temperature Warning Light
This telltale indicates engine oil temperature is high. If the light turns on while driving, stop the ve-
hicle and shut off the engine as soon as possible.
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 147

•The vehicle is driven greater than 40 mph (64 km/h)
(HDC exits immediately).
• HDC detects excessive brake temperature.
Feedback To The Driver
The instrument cluster has an HDC icon and the HDC
switch has an LED which offer feedback to the driver about
the state HDC is in.
• The cluster icon and switch lamp will illuminate and
remain on solid when HDC is enabled or activated. This
is the normal operating condition for HDC.
• The cluster icon and switch lamp will flash for several
seconds then extinguish when the driver pushes the
HDC switch but enable conditions are not met.
• The cluster icon and switch lamp will flash for several
seconds then extinguish when HDC disables due to
excess speed.
• The cluster icon and switch lamp will flash when HDC
deactivates due to overheated brakes. The flashing will
stop and HDC will activate again once the brakes have
cooled sufficiently.WARNING!
HDC is only intended to assist the driver in controlling
vehicle speed when descending hills. The driver must
remain attentive to the driving conditions and is re-
sponsible for maintaining a safe vehicle speed.
Selec Speed Control (SSC) — If Equipped
SSC is intended for off road driving in 4WD Low Range
only. SSC maintains vehicle speed by actively controlling
engine torque and brakes.
SSC has three states:
1. Off (feature is not enabled and will not activate).
2. Enabled (feature is enabled and ready but activation conditions are not met, or driver is actively overriding
with brake or throttle application).
3.
Active (feature is enabled and actively controlling vehicle
speed).
5
SAFETY 181

DRIVE (D)
This range should be used for most city and highway
driving. It provides the smoothest upshifts and downshifts,
and the best fuel economy. The transmission automatically
upshifts through all forward gears. The DRIVE position
provides optimum driving characteristics under all normal
operating conditions.
When frequent transmission shifting occurs (such as when
operating the vehicle under heavy loading conditions, in
hilly terrain, traveling into strong head winds, or while
towing a heavy trailer), use the Electronic Range Select
(ERS) shift control (refer toElectronic Range Select (ERS)
Operation in this section for further information) to select
a lower gear range. Under these conditions, using a lower
gear range will improve performance and extend transmis-
sion life by reducing excessive shifting and heat buildup.
If the transmission temperature exceeds normal operating
limits, the transmission controller may modify the trans-
mission shift schedule, reduce engine torque, and/or ex-
pand the range of torque converter clutch engagement.
This is done to prevent transmission damage due to
overheating. If the transmission becomes extremely hot, the “Transmis-
sion Temperature Warning Light” may illuminate and the
transmission may operate differently until the transmission
cools down.
During cold temperatures, transmission operation may be
modified depending on engine and transmission tempera-
ture as well as vehicle speed. This feature improves warm
up time of the engine and transmission to achieve maxi-
mum efficiency. Engagement of the torque converter
clutch, and shifts into 8th or 9th gear, are inhibited until the
transmission fluid is warm (refer to the note within the
“Torque Converter Clutch” topic in this section). Normal
operation will resume once the transmission temperature
has risen to a suitable level.
SPORT — If Equipped
This mode alters the transmission’s automatic shift sched-
ule for sportier driving. Upshift speeds are increased to
make full use of available engine power.
SPORT mode is activated using the rotary switch on the
center console. Refer to
Selec-Terrainin this section for
further information.
6
STARTING AND OPERATING 275

•If the button is continually pushed, the set speed will
continue to decrease in 5 mph increments until the
button is released. The decrease in set speed is reflected
in the instrument cluster display.
Metric Speed (km/h)
• Pushing the SET -button once will result in a 1 km/h
decrease in set speed. Each subsequent tap of the button
results in a decrease of 1 km/h.
• If the button is continually pushed, the set speed will
continue to decrease in 10 km/h increments until the
button is released. The decrease in set speed is reflected
in the instrument cluster display.
NOTE:
• When you override and push the SET +button or SET -
buttons, the new set speed will be the current speed of
the vehicle.
• When you use the SET -button to decelerate, if the
engine’s braking power does not slow the vehicle suffi-
ciently to reach the set speed, the brake system will
automatically slow the vehicle. •
The ACC system decelerates the vehicle to a full stop
when following a target vehicle. If an ACC host vehicle
follows a target vehicle to a standstill, after two seconds
the driver will either have to push the RES (resume)
button, or apply the accelerator pedal to reengage the
ACC to the existing set speed.
• The ACC system maintains set speed when driving up
hill and down hill. However, a slight speed change on
moderate hills is normal. In addition, downshifting may
occur while climbing uphill or descending downhill.
This is normal operation and necessary to maintain set
speed. When driving up hill and down hill, the ACC
system will cancel if the braking temperature exceeds
normal range (overheated).
Setting The Following Distance In ACC
The specified following distance for ACC can be set by
varying the distance setting between four bars (longest),
three bars (long), two bars (medium) and one bar (short).
Using this distance setting and the vehicle speed, ACC
calculates and sets the distance to the vehicle ahead. This
distance setting appears in the instrument cluster display.
300 STARTING AND OPERATING

Cooling System
To reduce potential for engine and transmission overheat-
ing, take the following actions:
City Driving
When stopped for short periods, shift the transmission into
NEUTRAL and increase engine idle speed.Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
4X4 Models
Towing
Condition Wheels
OFF the Ground Front-Wheel
Drive
(FWD)
Models 1-Speed Power
Transfer Unit 2-Speed Power Transfer Unit
Flat Tow NONE NOT
ALLOWED NOT
ALLOWED See Instructions:
•
Before towing, See your authorized dealer for the
Mopar flat tow wiring kit
• It is recommended to charge the battery of the
towed vehicle during recreational towing
• Transmission in PARK
• Power transfer unit in NEUTRAL (N)
• To w i n forward direction
378 STARTING AND OPERATING

JUMP-STARTING PROCEDURES ............431
▫ Preparations For Jump-Start ...............432
▫ Jump Starting Procedure ..................433
 REFUELLING IN EMERGENCY .............435
▫ Emergency Fuel Filler Door Release ..........435
 IF YOUR ENGINE OVERHEATS .............436
 GEAR SELECTOR OVERRIDE ..............437
 FREEING A STUCK VEHICLE ..............437
TOWING A DISABLED VEHICLE ............439
▫ Front-Wheel Drive (FWD) Models ...........441
▫ 4x4 Models With 1–Speed Power Transfer Unit . .441
▫ 4x4 Models With 2–Speed Power Transfer Unit . .442
▫ Recovery Strap — If Equipped .............443
 ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .............................. .444
 EVENT DATA RECORDER (EDR) ............444
390 IN CASE OF EMERGENCY

IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating your engine by taking the appro-
priate action.
•On the highways — slow down.
• In city traffic — while stopped, put transmission in
NEUTRAL, but do not increase engine idle speed.
CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads “H,” pull over
and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H” and you hear continuous chimes, turn the engine
off immediately and call for service. NOTE:
There are steps that you can take to slow down an
impending overheat condition:
• If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C off can help remove this heat.
• You can also turn the temperature control to maximum
heat, the mode control to floor and the blower control to
high. This allows the heater core to act as a supplement
to the radiator and aids in removing heat from the
engine cooling system.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If you
see or hear steam coming from under the hood, do not
open the hood until the radiator has had time to cool.
Never try to open a cooling system pressure cap when
the radiator or coolant bottle is hot.
436 IN CASE OF EMERGENCY