brake JEEP GRAND CHEROKEE LIMITED 2019 Manual Online

•Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required.
• Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
• Check for accumulations of plants or brush. These things
could be a fire hazard. They might hide damage to fuel
lines, brake hoses, axle pinion seals, and propeller shafts.
• After extended operation in mud, sand, water, or similar
dirty conditions, have the radiator, fan, brake rotors,
wheels, brake linings, and axle yokes inspected and
cleaned as soon as possible.

CavityCartridge Fuse Micro Fuse Description
F11 30 Amp Pink –Trailer Tow Electric Brake — If Equipped
F12 40 Amp Green –Body Controller #3/Power Locks
F13 40 Amp Green –Blower Motor Front
F14 40 Amp Green –Body Controller #4/Exterior Lighting #1
F15 40 Amp Green –LTR (Low Temperature Radiator) Engine
Cooling Pump — If Equipped
F17 30 Amp Pink –Headlamp Washer — If Equipped
F19 20 Amp Blue –Headrest Solenoid — If Equipped
F20 30 Amp Pink –Passenger Door Module
F22 20 Amp Blue –Engine Control Module
F23 30 Amp Pink –Interior Lights #1
F24 30 Amp Pink –Driver Door Module
F25 30 Amp Pink – Front Wipers
F26 30 Amp Pink –Anti-lock Brakes/Stability Control Module,
ECU and Valves
F28 20 Amp Blue –Trailer Tow Backup Lights — If Equipped
F29 20 Amp Blue –Trailer Tow Parking Lights — If Equipped
F30 30 Amp Pink –Trailer Tow (Receptacle) / Trailer Tow (Sepa-
rate E-Brake) / Trailer Tow (BUX) — If Equipped
408 IN CASE OF EMERGENCY

CavityCartridge Fuse Micro Fuse Description
F73 –15 Amp Blue HID Headlamp RH — If Equipped
F75 –10 Amp Red Dual Batt Control — If Equipped
F76 –10 Amp Red Anti-lock Brakes/Electronic Stability Control
F77 –10 Amp Red Drivetrain Control Module/Front Axle Dis-
connect Module — If Equipped
F78 –10 Amp Red Engine Control Module/Electric Power
Steering
F80 –10 Amp Red Universal Garage Door Opener/Anti-
Intrusion Module — If Equipped/Siren — If Equipped
F81 –20 Amp Yellow Trailer Tow Right Turn/Stop Lights — If
Equipped
F82 –10 Amp Red Steering Column Control Module/Cruise
Control/DTV — If Equipped
F83 –10 Amp Red Fuel Door
F84 –15 Amp Blue Instrument Cluster
F85 –10 Amp Red Airbag Module
F86 –10 Amp Red Airbag Module
F87 –10 Amp Red Air Suspension — If Equipped
F88 –15 Amp Blue Instrument Panel Cluster/SGW/ITBM — If
Equipped
7
IN CASE OF EMERGENCY 411

4. If using another vehicle to jump start the battery, parkthe vehicle within the jumper cables reach, apply the
parking brake and make sure the ignition is OFF.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster vehicle
or the discharged vehicle.
NOTE: Make sure at all times that unused ends of jumper
cables are not contacting each other or either vehicle while
making connections. Connecting The Jumper Cables
1. Connect the positive
(+)end of the jumper cable to the
remote positive (+)post of the discharged vehicle.
2. Connect the opposite end of the positive (+)jumper
cable to the positive (+)post of the booster battery.
3. Connect the negative end (-)of the jumper cable to the
negative (-)post of the booster battery.
4. Connect the opposite end of the negative (-)jumper
cable to the remote negative (-)post of the vehicle with
the discharged battery.

IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate action.
•On the highways — slow down.
• In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase the engine idle speed
while preventing vehicle motion with the brakes.
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.
CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (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 HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.7
IN CASE OF EMERGENCY 425

NOTE:To prevent the vehicle from rolling unintentionally,
firmly apply the parking brake.
To Disengage The Manual Park Release Lever:
1. To disengage the Manual Park Release, apply tension upward while pushing the release latch towards the
tether to unlock the lever.
2. Once the tension has been released and the lever has been unlocked, be sure it is stowed properly and locks
into position. NOTE:
Be sure to replace the cover by snapping it back in
place.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or snow, it can
often be moved using a rocking motion. Turn the steering
wheel right and left to clear the area around the front
wheels. Push and hold the lock button on the gear selector.
Then, shift back and forth between DRIVE and REVERSE
while gently pressing the accelerator.
Stowed Position
428 IN CASE OF EMERGENCY

NOTE:Shifts between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph (8 km/h) or less.
Whenever the transmission remains in NEUTRAL for more
than two seconds, you must press the brake pedal to
engage DRIVE or REVERSE.
Use the least amount of accelerator pedal pressure that will
maintain the rocking motion without spinning the wheels
or racing the engine.
NOTE: Push the ESC Off switch, to place the Electronic
Stability Control (ESC) system in Partial Offmode, before
rocking the vehicle. Refer to “Electronic Brake Control” in
“Safety” for further information. Once the vehicle has been
freed, push the ESC Offswitch again to restore ESC On
mode.CAUTION!
• Racing the engine or spinning the wheels may lead
to transmission overheating and failure. Allow the
engine to idle with the transmission in NEUTRAL
for at least one minute after every five rocking-
motion cycles. This will minimize overheating and
reduce the risk of transmission failure during pro-
longed efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shifting between
DRIVE and REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure. It
can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmis-
sion shifting occurring).
7
IN CASE OF EMERGENCY 429

SCHEDULED SERVICING
Scheduled Servicing — Gasoline Engine
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will influence
when the “Oil Change Required” message is displayed.
Severe operating conditions can cause the change oil
message to illuminate as early as 3,500 miles (5,600 km)
since last reset. Have your vehicle serviced as soon as
possible, within the next 500 miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change.
NOTE:Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), twelve months or 350
hours of engine run time, whichever comes first. The 350
hours of engine run or idle time is generally only a concern
for fleet customers. Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) or 350 hours of
engine run time if the vehicle is operated in a dusty and
off-road environment, or is operated predominantly at idle
or only very low engine RPM’s. This type of vehicle use is
considered Severe Duty.
Once A Month Or Before A Long Trip:
•
Check engine oil level.
• Check windshield washer fluid level.
• Check the tire inflation pressures and look for unusual
wear or damage.
• Check the fluid levels of the coolant reservoir, brake
master cylinder and fill as needed.
• Check function of all interior and exterior lights
Maintenance Plan
Required Maintenance
Refer to the Maintenance Plans on the following pages for
required maintenance.
8
SERVICING AND MAINTENANCE 437

At Every Oil Change Interval As Indicated By Oil Change Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns
on.
• Inspect battery and clean and tighten terminals as required.
• Inspect brake pads, shoes, rotors, drums, hoses and park brake.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or off-road conditions.
438 SERVICING AND MAINTENANCE

Mileage or time passed (which-ever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV joints. X X X X X
Inspect front suspension, tie rod
ends, and replace if necessary. XXX X X X X
Inspect the front and rear axle
fluid, change if using your vehicle
for police, taxi, fleet, off-road or
frequent trailer towing. XXX X X X X
Inspect the brake linings, parking
brake function. XXX X X X X
Inspect transfer case fluid. X X X X
Additional Maintenance
Replace engine air filter. X X X X X
Replace the air conditioning filter. X X X X X X X
Replace spark plugs.** X
8
SERVICING AND MAINTENANCE 439