sensor JEEP GRAND CHEROKEE LIMITED 2019 Owner's Guide

Speed Control — If Equipped
•Do not use on hilly terrain or with heavy loads.
• When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
• Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission overheat-
ing, take the following actions:
City Driving
•In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase engine idle speed. Highway Driving
•
Reduce speed.
• Temporarily turn off air conditioning.
SNOW PLOW
Snow plows, winches, and other aftermarket equipment
should notbe added to the front end of your vehicle. The
airbag crash sensors may be affected by the change in the
front end structure. The airbags could deploy unexpectedly
or could fail to deploy during a collision.

Off-Road Driving Tips
NOTE:Prior to off-road driving with non-Summit models
that are also equipped with an Off Road Package, remove
the lower fascia to prevent damage. The lower fascia is
attached to the lower part of the front fascia with seven
quarter turn fasteners and can be removed by hand. The
front license plate bracket must be removed first if
equipped. NOTE:
On Summit models the lower front fascia is not
removable.
Lower Front Fascia Removal:
1. Remove the seven quarter turn fasteners.
2. Starting on one side of the vehicle, disengage lower fascia from the upper fascia. Grasp the portion inside
the wheel well. Pulling it downwards and toward you,
separate the tabs from the slots in the upper fascia.
3. Continue working your way across the vehicle, separat- ing the remaining tabs from the slots in the upper fascia.
NOTE: Do not allow the lower fascia to freely hang from
the tabs in the opposite corner as damage to lower and
upper fascia may result.
4. Store the lower fascia in a safe location.
NOTE: It is recommend to also remove the radar sensor on
vehicle equipped to Adaptive Cruise Control (ACC). This
radar sensor is specifically calibrated to your vehicle and is
not interchangeable with other radar sensors.

Radar Sensor Removal Procedure (If Equipped With
Adaptive Cruise Control [ACC]):
1. With the lower fascia removed, which provides access tothe sensor and bracket, disconnect the wiring harness
from the sensor.
2. Using a suitable tool, disconnect the wire clip from the bracket.
3. Using a suitable tool, remove the two fasteners that hold the sensor bracket to the bumper beam.
NOTE: It is recommended to scribe location to assist in
reinstallation.
4. Locate the protective connector on the rear of the bumper beam.
NOTE:Only models with the Off Road Package are
equipped with the a protective connector.
5. Remove the plug from the protective connector and install on the sensor.
6. Insert the wiring harness connector into the protective connector.

7. Store sensor and bracket in a safe place.
NOTE:All cruise control functions will be disabled when
the radar sensor is disconnected.
Radar Sensor Installation Procedure (If Equipped With
Adaptive Cruise Control [ACC]):
1. Disconnect the wiring harness connector from the pro- tective connector on the bumper beam.
2. Remove plug from radar sensor and install in protective connector.
3. Using the previously scribed marks, reinstall the radar sensor and bracket using the two fasteners.
NOTE: Some alignment may be required upon fascia
installation to align sensor with fascia.
4. Install the wiring harness connector into the radar sensor.
NOTE: If you receive a fault, see your authorized dealer
they may need to perform a sensor alignment.
Lower Front Fascia Installation
NOTE: This will only work if you have a helper. 1. Starting at the center of the vehicle, engage a sufficient
number of tabs to support the weight of the lower fascia
(typically one or two tabs) into the upper fascia.
2. Working your way outward, engage the tabs into the slots on one side of the vehicle.
3. Return to the center of the vehicle and repeat Step 2 to the opposite side of the vehicle.
NOTE: •It may be necessary to apply additional force to
individual tabs to make sure they are fully engaged.
• Do not use any tools to apply additional force to the
tabs as damage to the upper and lower fascias may
result.
4. Reinstall the seven quarter turn fasteners.
Quadra-Lift — If Equipped
When 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.
6
STARTING AND OPERATING 385

CavityCartridge Fuse Micro Fuse Description
F57 –20 Amp Yellow NOX Sensor — If Equipped
F58 –15 Amp Blue HID Headlamps LH — If Equipped
F59 –10 Amp Red Purging Pump (Diesel Engine Only)
F60 –15 Amp Blue Transmission Control Module
F61 –10 Amp Red Transmission Control Module/PM Sensor
(Diesel Engine Only)
F62 –10 Amp Red Air Conditioning Clutch
F63 –20 Amp Yellow Ignition Coils / Ignition Coil Capacitors /
Short Runner Valve Actuator — If Equipped(Gas) Urea Heater (Diesel)
F64 –25 Amp Clear Fuel Injectors/Powertrain
F66 –10 Amp Red Sunroof/Rain Sensor/Inside Rear View Mir-
ror / USB Port / DSCR / DTV — IfEquipped
F67 –15 Amp Blue CD/DVD/UCI Port/USB Charging Port
F68 –20 Amp Yellow Rear Wiper Motor
F69 –15 Amp Blue Spotlight Feed — If Equipped
F70 –20 Amp Yellow Fuel Pump Motor
F71 –30 Amp Green Amplifier/ANCM — If Equipped
F72 –10 Amp Red ECM
410 IN CASE OF EMERGENCY

CavityCartridge Fuse Micro Fuse Description
F90/F91 –20 Amp Yellow Power Outlet (Rear Seats) Selectable
F92 –10 Amp Red Rear Console Lamp — If Equipped
F93 –20 Amp Yellow Cigar Lighter
F94 –10 Amp Red Shifter/Transfer Case Module
F95 –10 Amp Red Rear Camera / Blind Spot Sensor — If
Equipped
F96 –10 Amp Red Rear Seat Heater Switch/Flashlamp Charger
— If Equipped
F97 –20 Amp Yellow Rear Heated Seats & Heated Steering Wheel
— If Equipped
F98 –20 Amp Yellow Ventilated Seats/Front Heated Seats — If
Equipped
F99 –10 Amp Red Climate Control/Driver Assistance Systems
Module/HALF/Park Assist
F100 –10 Amp Red Active Damping — If Equipped
F101 –15 Amp Blue In Car Temperature Sensor/Humidity Sensor
F102 –15 Amp Blue Spare
F103 –10 Amp Red Cabin Heater (Diesel Engine Only)/Rear
HVAC — If Equipped
F104 –20 Amp Yellow Power Outlets (Instrument Panel/Center
Console/Rear Cargo — If Equipped)
412 IN CASE OF EMERGENCY

Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires on
your vehicle will cause your vehicle to handle poorly.
The instability could cause a collision. Always use
radial ply tires in sets of four. Never combine them
with other types of tires.
Tire Repair
If your tire becomes damaged, it may be repaired if it meets
the following criteria:
• The tire has not been driven on when flat.
• The damage is only on the tread section of your tire
(sidewall damage is not repairable).
• The puncture is no greater thana¼ofaninch (6 mm).
Consult an authorized tire dealer for tire repairs and
additional information.
Damaged Run Flat tires, or Run Flat tires that have experi-
enced a loss of pressure should be replaced immediately with
another Run Flat tire of identical size and service description (Load Index and Speed Symbol). Replace the tire pressure
sensor as well as it is not designed to be reused.
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the
Run Flat mode. A Run Flat mode occurs when the tire
inflation pressure is of/or below 14 psi (96 kPa). Once a
Run Flat tire reaches the run flat mode it has limited
driving capabilities and needs to be replaced immediately.
A Run Flat tire is not repairable. When a run flat tire is
changed after driving with underinflated tire condition,
please replace the TPM sensor as it is not designed to be
reused when driven under run flat mode (14 psi (96 kPa))
condition.
NOTE:
TPM Sensor must be replaced after driving the
vehicle on a flat tire condition.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the run flat
mode.
See the tire pressure monitoring section for more informa-
tion.
480 SERVICING AND MAINTENANCE

Setting NameSelectable Options
LaneSense Strength
(LDW) — If Equipped Low
Medium High
Blind Spot Alert — If Equipped Off
LightsLights & Chime
NOTE:
When the “Blind Spot Alert” feature is selected, the Blind Spot Monitor (BSM) system is activated and shows a visual
alert in the outside mirrors, or it shows a visual alert in the outside mirrors as well as play an audible alert when the
turn signal is on. When “Off” is selected, the Blind Spot Monitor (BSM) system is deactivated.
If your vehicle has experienced any damage in the area where the sensor is located, even if the fascia is not damaged,
the sensor may have become misaligned. Take your vehicle to an authorized dealer to verify sensor alignment. A sen-
sor that is misaligned results in the BSM not operating to specification. Rain Sensing Auto Wipers — If Equipped On
Off
Hill Start Assist — If Equipped On
Off
Tilt Mirrors in Reverse On Off
Paddle Shifters Enable Disable
10
MULTIMEDIA 521

Compass CalibrationStart
NOTE:
Press “Compass Calibration” on the touchscreen to enter calibration. To start calibration of the compass, press the
“Yes” button on the touchscreen and complete one or more 360-degree turns (in an area free from large metal or me-
tallic objects). A message will appear on the touchscreen when the compass has been successfully calibrated.
Keep magnetic materials away from the rear view mirror, such as Mobile Phones, Laptops and Radar Detectors. This
is where the compass module is located, and it can cause interference with the compass sensor, and it may give false
readings.

Setting NameSelectable Options
Electric Power Steering Default Normal
SportComfort
NOTE:
When the “Electric Power Steering Default” is selected, it allows you to change the default setting of your vehicle to
either normal, sport, or comfort. Paddle Shifters Enable Disable
Blind Spot Alert — If Equipped Off
LightsLights & Chime
NOTE:
When the “Blind Spot Alert” feature is selected, the Blind Spot Monitoring (BSM) system is activated and shows a
visual alert in the outside mirrors, or it shows a visual alert in the outside mirrors as well as play an audible alert
when the turn signal is on. When “Off” is selected, the Blind Spot Monitoring (BSM) system is deactivated. If your
vehicle has experienced any damage in the area where the sensor is located, even if the fascia is not damaged, the
sensor may have become misaligned. Take your vehicle to an authorized dealer to verify sensor alignment. A sensor
that is misaligned results in the BSM not operating to specification. Hill Start Assist — If Equipped On
Off
544 MULTIMEDIA