Jeep Grand Cherokee SRT (2018 year). Instruction — part 25
4. Using a screwdriver or similar tool, push the metal latch
in towards the tether strap.
5. While the metal latch is in the open position, simulta-
neously pull upwards on the tether strap until the lever
clicks and latches in the released position. The transmis-
sion is now out of PARK and the vehicle can be moved.
CAUTION!
Closing the armrest while the Manual Park Release is
activated may damage the Manual Park Release
mechanism, the transmission, and/or the armrest.
NOTE:
To prevent the vehicle from rolling unintentionally,
firmly apply the parking brake.
Release Latch
Released Position
384
IN CASE OF EMERGENCY
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.
Release Latch
Stowed Position
7
IN CASE OF EMERGENCY
385
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.
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 (if necessary), to place
the Electronic Stability Control (ESC) system in
⬙Partial Off⬙
mode, before rocking the vehicle. Refer to “Electronic
Brake Control” in “Safety” for further information. Once
the vehicle has been freed, push the
⬙ESC Off⬙ switch again
to restore
⬙ESC On⬙ mode.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause damage, or even
failure, of the axle and tires. A tire could explode and
injure someone. Do not spin your vehicle’s wheels
faster than 30 mph (48 km/h) or for longer than 30
seconds continuously without stopping when you are
stuck and do not let anyone near a spinning wheel, no
matter what the speed.
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.
(Continued)
386
IN CASE OF EMERGENCY
CAUTION! (Continued)
• 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).
TOWING A DISABLED VEHICLE
The manufacturer requires towing your vehicle with all
four wheels off the ground using a flatbed.
If the key fob is unavailable, or the vehicle’s battery is
discharged, refer to “Manual Park Release” in this section
for instructions on shifting the transmission out of PARK
for loading onto a flatbed truck.
CAUTION!
• Towing this vehicle using any other method can
cause severe transmission and/or transfer case dam-
age.
• Damage from improper towing is not covered under
the New Vehicle Limited Warranty.
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS)
This vehicle is equipped with an Enhanced Accident
Response System.
Please refer to “Occupant Restraint Systems” in “Safety”
for further information on the Enhanced Accident Re-
sponse System (EARS) function.
EVENT DATA RECORDER (EDR)
This vehicle is equipped with an Event Data Recorder
(EDR). The main purpose of an EDR is to record data that
will assist in understanding how a vehicle’s systems per-
formed under certain crash or near crash-like situations,
such as an air bag deployment or hitting a road obstacle.
Please refer to “Occupant Restraint Systems” in “Safety”
for further information on the Event Data Recorder (EDR).
7
IN CASE OF EMERGENCY
387
SERVICING AND MAINTENANCE
CONTENTS
䡵 SCHEDULED SERVICING — SRT . . . . . . . . . . . .391
▫ Maintenance Plan. . . . . . . . . . . . . . . . . . . . . . .393
䡵 ENGINE COMPARTMENT . . . . . . . . . . . . . . . . .396
▫ 6.2L Supercharged Engine . . . . . . . . . . . . . . . .396
▫ 6.4L Engine . . . . . . . . . . . . . . . . . . . . . . . . . .397
▫ Checking Oil Level. . . . . . . . . . . . . . . . . . . . . .398
▫ Adding Washer Fluid . . . . . . . . . . . . . . . . . . .398
▫ Maintenance-Free Battery . . . . . . . . . . . . . . . . .398
䡵 DEALER SERVICE . . . . . . . . . . . . . . . . . . . . . . .399
▫ Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . .400
▫ Engine Oil Filter . . . . . . . . . . . . . . . . . . . . . . .402
▫ Engine Air Cleaner Filter . . . . . . . . . . . . . . . . .402
▫ Accessory Drive Belt Inspection . . . . . . . . . . . .404
▫ Air Conditioner Maintenance . . . . . . . . . . . . . .405
▫ Body Lubrication . . . . . . . . . . . . . . . . . . . . . .409
▫ Windshield Wiper Blades . . . . . . . . . . . . . . . . .410
▫ Exhaust System . . . . . . . . . . . . . . . . . . . . . . . .415
▫ Cooling System . . . . . . . . . . . . . . . . . . . . . . . .416
▫ Brake System . . . . . . . . . . . . . . . . . . . . . . . . .421
▫ Automatic Transmission . . . . . . . . . . . . . . . . . .422
▫ Front/Rear Axle Fluid . . . . . . . . . . . . . . . . . . .424
▫ Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . .424
䡵 RAISING THE VEHICLE . . . . . . . . . . . . . . . . . .425
䡵 TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .425
▫ Tire Safety Information . . . . . . . . . . . . . . . . . .425
▫ Tires — General Information . . . . . . . . . . . . . .435
▫ Tire Types . . . . . . . . . . . . . . . . . . . . . . . . . . . .441
▫ Spare Tires — If Equipped . . . . . . . . . . . . . . . .442
8
▫ Wheel And Wheel Trim Care . . . . . . . . . . . . . .444
▫ Tire Chains (Traction Devices) . . . . . . . . . . . . .446
▫ Tire Rotation Recommendations . . . . . . . . . . . .447
䡵 DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES . . . . . . . . . . . . . . . . . .447
▫ Treadwear . . . . . . . . . . . . . . . . . . . . . . . . . . . .448
▫ Traction Grades . . . . . . . . . . . . . . . . . . . . . . . .448
▫ Temperature Grades . . . . . . . . . . . . . . . . . . . . .448
䡵 STORING THE VEHICLE . . . . . . . . . . . . . . . . . .449
䡵 BODYWORK . . . . . . . . . . . . . . . . . . . . . . . . . . .449
▫ Protection From Atmospheric Agents . . . . . . . .449
▫ Body And Underbody Maintenance . . . . . . . . . .450
▫ Preserving The Bodywork. . . . . . . . . . . . . . . . .450
䡵 INTERIORS . . . . . . . . . . . . . . . . . . . . . . . . . . . .451
▫ Seats And Fabric Parts . . . . . . . . . . . . . . . . . . .451
▫ Plastic And Coated Parts. . . . . . . . . . . . . . . . . .452
▫ Leather Parts . . . . . . . . . . . . . . . . . . . . . . . . . .452
▫ Glass Surfaces . . . . . . . . . . . . . . . . . . . . . . . . .453
390
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — SRT
The Scheduled Maintenance services listed in this manual
must be done at the times or mileages specified to protect
your vehicle warranty and ensure the best vehicle perfor-
mance 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 scheduled maintenance.
The instrument cluster display will display an “Oil Change
Required” message and a single chime will sound, indicat-
ing that an oil change is necessary.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Have your vehicle serviced as
soon as possible, within the next 500 miles (805 km).
NOTE:
• The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s oil
if it has been six 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 extended period of time.
• Under no circumstances should oil change intervals
exceed 6,000 miles (10,000 km) or six months, whichever
comes first.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other than
your authorized dealer, the message can be reset by
referring to the steps described under “Instrument Cluster
Display” in “Getting To Know Your Instrument Panel” for
further information.
At Each Stop For Fuel
• Check the engine oil level. Refer to “Engine Compart-
ment” in this section for further information.
• Check the windshield washer solvent and add if re-
quired.
8
SERVICING AND MAINTENANCE
391
Once A Month
• Check tire pressure and look for unusual wear or
damage.
• Inspect the battery, and clean and tighten the terminals
as required.
• Check the fluid levels of the coolant reservoir, engine oil,
brake master cylinder, and add as needed.
• Check all lights and other electrical items for correct
operation.
At Each Oil Change
• Change the engine oil filter.
• Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
392
SERVICING AND MAINTENANCE
Maintenance Plan
Miles:
6,000
12,000
18,000
24,000
30,000
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
96,000
102,000
108,000
1
14,000
120,000
126,000
132,000
138,000
144,000
150,000
Or Months:
6
12
18
24
30
36
42
48
54
60
66
72
78
84
90
96 102 108 114 120 126 132 138 144 150
Or Kilometers:
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
1
10,000
120,000
130,000
140,000
150,000
160,000
170,000
180,000
190,000
200,000
210,000
220,000
230,000
240,000
250,000
Change the engine oil and en-
gine oil filter.
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Rotate the tires, rotate at the first
sign of irregular wear, even if it
occurs before scheduled mainte-
nance.
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
If using your vehicle for any of
the following: dusty or off-road
conditions. Inspect the engine air
cleaner filter; replace if neces-
sary.
X
X
X
X
X
X
X
X
X
X
X
X
Inspect the brake linings; replace
if necessary.
X
X
X
X
X
X
X
X
X
X
X
X
Inspect the CV joints.
X
X
X
X
X
X
X
X
X
X
X
X
Inspect the exhaust system.
X
X
X
X
X
X
X
X
X
X
X
X
Adjust the parking brake on ve-
hicles equipped with four wheel
disc brakes.
X
X
X
X
X
Drain the transfer case and refill.
X
X
X
X
X
Inspect the accessory drive belts
replace if necessary.
X
X
8
SERVICING AND MAINTENANCE
393
Miles:
6,000
12,000
18,000
24,000
30,000
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
96,000
102,000
108,000
1
14,000
120,000
126,000
132,000
138,000
144,000
150,000
Or Months:
6
12
18
24
30
36
42
48
54
60
66
72
78
84
90
96 102 108 114 120 126 132 138 144 150
Or Kilometers:
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
1
10,000
120,000
130,000
140,000
150,000
160,000
170,000
180,000
190,000
200,000
210,000
220,000
230,000
240,000
250,000
Inspect the front and rear axle
fluid. Change if using your ve-
hicle for any of the following: po-
lice, taxi, fleet, sustained high
speed driving, off-road or fre-
quent trailer towing.
X
X
X
X
X
X
Inspect front suspension, tie rod
ends, and boot seals, for cracks
or leaks and all parts for dam-
age, wear, improper looseness or
end play; replace if necessary.
X
X
X
X
X
X
X
X
X
X
X
X
Replace the engine air cleaner
filter.
X
X
X
X
X
Replace the air conditioning filter.
X
X
X
X
X
X
Inspect and replace the PCV
Valve if necessary
X
Replace the spark plugs – 6.2L
Supercharged Engine. **
X
X
Replace the spark plugs – 6.4L
Engine. **
X
Flush and replace the engine
coolant at 120 months if not
done at 150,000 miles (240,000
km).
X
X
394
SERVICING AND MAINTENANCE
** The spark plug change interval is mileage based only,
monthly intervals do not apply.
WARNING!
• You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If you
have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your vehicle
could result in a component malfunction and effect
vehicle handling and performance. This could cause
an accident.
8
SERVICING AND MAINTENANCE
395
ENGINE COMPARTMENT
6.2L Supercharged Engine
1 — Remote Jump Start Positive Terminal
7 — Washer Fluid Reservoir
2 — Power Distribution Center (Fuses)
8 — Engine Oil Dipstick
3 — Intercooler Coolant Reservoir
9 — Coolant Pressure Cap (Radiator)
4 — Engine Oil Fill
10 — Engine Coolant Reservoir
5 — Brake Fluid Reservoir
11 — Remote Jump Start Negative Terminal
6 — Air Cleaner Filter
396
SERVICING AND MAINTENANCE
6.4L Engine
1 — Remote Jump Start Positive Terminal
6 — Air Cleaner Filter
2 — Power Distribution Center (Fuses)
7 — Washer Fluid Reservoir
3 — Engine Oil Dipstick
8 — Coolant Pressure Cap (Radiator)
4 — Engine Oil Fill
9 — Engine Coolant Reservoir
5 — Brake Fluid Reservoir
10 — Remote Jump Start Negative Terminal
8
SERVICING AND MAINTENANCE
397
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. Check
the oil level at regular intervals, such as every fuel stop.
The best time to check the engine oil level is about five
minutes after a fully warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Always
maintain the oil level within the SAFE zone on the dipstick.
Adding one quart of oil when the reading is at the bottom
of the SAFE zone will result in a reading at the top of the
safe zone on these engines.
CAUTION!
Overfilling or underfilling the crankcase will cause
aeration or loss of oil pressure. This could damage your
engine.
Adding Washer Fluid
The instrument cluster display will indicate when the
washer fluid level is low. When the sensor detects a low
fluid level, the windshield will light on the vehicle graphic
outline and the “WASHER FLUID LOW” message will be
displayed.
The fluid reservoir for the windshield washers and the rear
window washer is shared. The fluid reservoir is located in
the engine compartment, be sure to check the fluid level at
regular intervals. Fill the reservoir with windshield washer
solvent only (not radiator antifreeze). When refilling the
washer fluid reservoir, take some washer fluid and apply it
to a cloth or towel and wipe clean the wiper blades, this
will help blade performance. To prevent freeze-up of your
windshield washer system in cold weather, select a solu-
tion or mixture that meets or exceeds the temperature
range of your climate. This rating information can be found
on most washer fluid containers.
WARNING!
Commercially available windshield washer solvents
are flammable. They could ignite and burn you. Care
must be exercised when filling or working around the
washer solution.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic mainte-
nance required.
398
SERVICING AND MAINTENANCE
WARNING!
• Battery fluid is a corrosive acid solution and can
burn or even blind you. Do not allow battery fluid to
contact your eyes, skin, or clothing. Do not lean over
a battery when attaching clamps. If acid splashes in
eyes or on skin, flush the area immediately with
large amounts of water. Refer to “Jump Starting
Procedure” in “In Case Of Emergency” for further
information.
• Battery gas is flammable and explosive. Keep flame
or sparks away from the battery. Do not use a booster
battery or any other booster source with an output
greater than 12 Volts. Do not allow cable clamps to
touch each other.
• Battery posts, terminals, and related accessories con-
tain lead and lead compounds. Wash hands after
handling.
CAUTION!
• It is essential when replacing the cables on the
battery that the positive cable is attached to the
positive post and the negative cable is attached to the
(Continued)
CAUTION! (Continued)
negative post. Battery posts are marked positive (+)
and negative (-) and are identified on the battery
case. Cable clamps should be tight on the terminal
posts and free of corrosion.
• If a “fast charger” is used while the battery is in the
vehicle, disconnect both vehicle battery cables before
connecting the charger to the battery. Do not use a
“fast charger” to provide starting voltage.
DEALER SERVICE
Your authorized dealer has the qualified service personnel,
special tools, and equipment to perform all service opera-
tions in an expert manner. Service Manuals are available
which include detailed service information for your ve-
hicle. Refer to these Service Manuals before attempting any
procedure yourself.
NOTE:
Intentional tampering with emissions control sys-
tems may void your warranty and could result in civil
penalties being assessed against you.
8
SERVICING AND MAINTENANCE
399
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