2019 JEEP WRANGLER UNLIMITED check engine

9. Repeat steps seven and eight with the
transmission in DRIVE.
10. Turn the engine OFF and leave the igni-
tion in the unlocked ACC position.
11. Firmly apply the parking brake.
12. Shift the transmission into PARK (NOT
in NEUTRAL).
CAUTION!
Damage to the transmission may occur if
the transmission is shifted into PARK with
the transfer case in NEUTRAL (N) and the
engine running. With the transfer case in
NEUTRAL (N) ensure that the engine is
OFF before shifting the transmission into
PARK.13. Attach the vehicle to the tow vehicle
using a suitable tow bar.
14. Release the parking brake.
15. Disconnect the negative battery cable,
and secure it away from the negative
battery post.
Shifting Out of NEUTRAL (N)
Use the following procedure to prepare your
vehicle for normal usage.
1. Bring the vehicle to a complete stop, leav-
ing it connected to the tow vehicle.
2. Firmly apply the parking brake.
3. Reconnect the negative battery cable.
4. Start the engine.
5. Press and hold the brake pedal.
6. Shift the transmission into NEUTRAL.7. Turn the engine OFF.
8. Shift the transfer case lever to the desired
position.
NOTE:
When shifting the transfer case out of
NEUTRAL (N), the engine should remain
OFF to avoid gear clash.
9. Shift the transmission into PARK.
10. Release the brake pedal.
11. Disconnect vehicle from the tow vehicle.
12. Start the engine.
13. Press and hold the brake pedal.
14. Release the parking brake.
15. Shift the transmission into gear, release
the brake pedal, and check that the
vehicle operates normally.
173

WARNING!
services are switched off and/or disen-
gaged.
• If the replaced fuse blows again, contact
an authorized dealer.
• If a general protection fuse for safety
systems (air bag system, braking sys-
tem), power unit systems (engine sys-
tem, gearbox system) or steering system
blows, contact an authorized dealer.
CAUTION!
If it is necessary to wash the engine com-
partment, take care not to directly hit the
CAUTION!
fuse box, and the windshield wiper motors
with water.
General Information
The fuses protect electrical systems against
excessive current.
When a device does not work, you must check
the fuse element inside the blade fuse for a
break/melt.
Also, please be aware that when using power
outlets for extended periods of time with the
engine off may result in vehicle battery dis-
charge.
Power Distribution Center (PDC)
The Power Distribution Center is located in
the engine compartment near the battery.
This center contains cartridge fuses, mini
fuses, and relays. The PDC top cover is la-
belled with each serviceable fuse/relay loca-
tion, function, and size.
NOTE:
Fuses for safety systems (marked with *)
must be serviced by an authorized dealer.
Cavity Cartridge Fuse Micro Fuse Description
F01 – – Spare
F02 40 Amp Green – Starter
(*)
F03
– 5 Amp TanIntelligent Battery Sensor (IBS)
(*)
F04 – 20 Amp YellowFuel Pump MTR/FPCM
(*)
181

WARNING!
• Being under a jacked-up vehicle is dan-
gerous. The vehicle could slip off the
jack and fall on you. You could be
crushed. Never put any part of your body
under a vehicle that is on a jack. If you
need to get under a raised vehicle, take
it to a service center where it can be
raised on a lift.
• Never start or run the engine while the
vehicle is on a jack.
• The jack is designed to be used as a tool
for changing tires only. The jack should
not be used to lift the vehicle for service
purposes. The vehicle should be jacked
on a firm level surface only. Avoid ice or
slippery areas.
Jack Location
The jack and lug wrench are located in the
rear cargo area. To remove jack and tools
proceed as follows:
1. Lift the load floor in the cargo area.NOTE:
The load floor can be removed for easier
access by pulling the load floor directly
rearward.
2. Remove the hardware storage cover by
pinching the latch on the left side and
pulling upward.
3. Turn the black plastic wing nut counter-
clockwise to loosen the jack from the
storage bin.
4. Remove tool kit and assemble tools.
Spare Tire Removal
1. To remove the spare tire from the carrier,
remove the tire cover, if equipped.
NOTE:
The spare wheel is mounted on the out-
side of the tailgate, protected by a plastic
cover with fasteners. Under traffic regula-
tions, the cover must not be removed or
insecurely fixed during use of the vehicle
on the public highway. Reference should
be made to local laws and regulations. Ifthe spare wheel is used, before continuing
your journey check that the damaged
wheel is securely mounted and the cover
is correctly fixed in place. Also take care
not to obstruct the rear camera.
2. Remove the Rear Camera Cover by turning
the lock bolt to the left with the #T40 Torx
head driver and ratchet from the supplied
tool kit.
3. Remove the lug nuts with the lug wrench
turning them counterclockwise. If
equipped, remove the locking lug nut with
the lock key (located in the glove box)
turning it counterclockwise.
Stowing The Replaced Spare Tire
1. Mount the spare tire onto the carrier.
Torque down lug nuts and locking lug nut.
2. Return the lock bolt to the lock position
on the camera cover by turning the lock to
the right using the provided #T40 Torx
head driver and ratchet. Then, reinstall
the camera cover by slipping it over the
camera/tire carrier until it snaps into
place.
IN CASE OF EMERGENCY
190

SERVICING AND MAINTENANCE
SCHEDULED SERVICING......208
Scheduled Servicing — Gasoline Engine.208
Scheduled Servicing — Diesel Engine .213
ENGINE COMPARTMENT......217
2.0L Gasoline Engine............217
3.6L Gasoline Engine............218
2.2L Diesel Engine.............219
Checking Oil Level — Gasoline Engine .220
Adding Washer Fluid............220
Maintenance-Free Battery........221
DEALER SERVICE...........221
Windshield Wiper Blades.........222
Cooling System...............224
Brake System................224
Automatic Transmission..........225
RAISING THE VEHICLE.......226
TIRES....................226
Tire Safety Information..........226
Tires — General Information.......230
Tire Types...................234
Spare Tires — If Equipped........235
Wheel And Wheel Trim Care.......236Tire Chains (Traction Devices).......237
Tire Rotation Recommendations.....238
STORING THE VEHICLE......239
BODYWORK...............239
Body And Underbody Maintenance . . .239
Preserving The Bodywork.........239
INTERIORS................242
Seats And Fabric Parts...........242
Plastic And Coated Parts..........243
Leather Parts.................243
Glass Surfaces...............243
SERVICING AND MAINTENANCE
207

SCHEDULED SERVICING
Correct servicing is crucial for guaranteeing a
long life for the car under the best conditions.
For this reason, Jeep has planned a series of
checks and services at fixed distance inter-
vals and, where provided, at fixed time inter-
vals, as described in the Scheduled Servicing
plan. To keep the car’s efficiency in tip-top
condition, in the following Scheduled Service
plan pages a few additional checks are listed
that should be carried out more frequently
with respect to the normal coupon redemp-
tion schedule. Scheduled Servicing is offered
by all authorized dealerships according to
fixed time or mileage intervals. If, during
each operation, in addition to the ones
scheduled, the need arises for further re-
placements or repairs, these may be carried
out with the owner's explicit agreement only.
The technicians at your dealership know your
vehicle best, and have access to factory
trained information, genuine Mopar parts,
and specially designed electronic and me-
chanical tools that can help prevent future
costly repairs. If your car is used frequently
for towing, the interval between one sched-uled servicing operation and the next should
be reduced. More frequent maintenance may
be needed for vehicles in severe operating
conditions, such as dusty areas and very
short trip driving.
NOTE:
Scheduled Servicing interventions are set out
by the Manufacturer. Failure to have them
carried out may invalidate the warranty. It is
advised to inform an authorized dealership of
any small operating irregularities without
waiting for the next service.
Scheduled Servicing — Gasoline Engine
The oil change indicator system will remind
you that it is time to take your vehicle in for
engine oil replacement.
On vehicles equipped with instrument cluster
display, “Oil Change Required” will be dis-
played and a single chime will sound, indi-
cating that an oil change is necessary.
On non-instrument cluster display equipped
vehicles, “Change Oil” will flash in the in-
strument cluster odometer and a single
chime will sound, indicating that an oil
change is necessary.The oil change indicator message will illumi-
nate approximately 7,000 miles
(11,200 km) after the most recent oil change
was performed. Have your vehicle serviced as
soon as possible, within 500 miles (800 km)
(except for 2.0L gasoline engine with GPF -
Gasoline Particulate Filter). However, an ear-
lier oil change at 4,500 miles (7,500 km)
may be required if the vehicle is operated
under “Severe Duty Conditions” later in this
section.
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
12 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 7,500 miles (12,000 km)
or 12 months, whichever comes first (ex-
cept for 2.0L gasoline engine with GPF -
Gasoline Particulate Filter).
SERVICING AND MAINTENANCE
208

Your authorized dealer will reset the oil
change indicator message after completing
the scheduled oil change.
Once A Month Or Before A Long Trip
• Check the engine oil level about five min-
utes after a fully warmed engine is shut off.
Checking the oil level while the vehicle is
on level ground will improve the accuracy of
the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
• Check the windshield washer solvent and
add if required.
• Check tire pressure and look for unusual
wear or damage. Rotate tires at the first
sign of irregular wear, even if it occurs
before the oil indicator system turns on.• Inspect the battery and clean and tighten
the terminals as required.
• Check the fluid levels of coolant reservoir,
brake master cylinder and power steering
and fill 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 mainte-
nance items may result in damage to the
vehicle.Required Maintenance Intervals
Refer to the Maintenance Plan on the follow-
ing pages for the required maintenance inter-
vals.
Maintenance Plan
NOTE:
Once you have carried out the last interven-
tion in the table, continue with the scheduled
servicing, maintaining the frequency indi-
cated in the plan by marking each operation
with a dot or dedicated note. Simply restart-
ing the maintenance from the start of the
plan may cause the allowed interval to be
exceeded for some operations.
209

•The timing and accessory belts must be
changed every 37,500 miles (60,000 km) or
3 years for particularly demanding use (dusty
areas, severe weather conditions, very low or
very high temperatures for extended periods,
city driving, long periods of idling). Under no
circumstances should these intervals be
exceeded.
Once A Month Or Before A Long Trip
• Check engine oil level.
• Check windshield washer fluid level.
• Check tire pressure and look for unusual
wear or damage. Rotate tires at the first
sign of irregular wear, even if it occurs
before the oil indicator system turns on.
• Check the fluid levels of the coolant reser-
voir and brake master cylinder, fill as
needed.
• Check function of all interior and exterior
lights.
• Control and recovery of additive level for
AdBlue Diesel emissions (UREA) (if
equipped).Demanding Vehicle Use
• Restore additive level for AdBlue Diesel
emissions (UREA) (if equipped), when the
lamp is illuminated or the message on the
instrument panel.
CAUTION!
Failure to perform the required mainte-
nance items may result in damage to the
vehicle.
Maintenance Plan — Diesel Engine
Required Maintenance Intervals
Refer to the maintenance plan on the follow-
ing pages for the required maintenance inter-
vals.
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
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
• Inspect battery and clean and tighten ter-
minals 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
• Inspect all door latches for presence of
grease, reapply if necessary.
•
Inspect coolant level.
NOTE:
Once you have carried out the last interven-
tion in the table, continue with the scheduled
servicing, maintaining the frequency indi-
cated in the plan by marking each operation
with a dot or dedicated note. Simply restart-
ing the maintenance from the start of the
plan may cause the allowed interval to be
exceeded for some operations.SERVICING AND MAINTENANCE
214

Mileage or time passed (whichever comes first)12,500
25,000
37,500
50,000
62,500
75,000
87,500
100,000
112,500
125,000
137,500
150,000
162,500
175,000
187,500
Or Years: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
180,000
200,000
220,000
240,000
260,000
280,000
300,000
Additional Inspections
Change the engine oil and engine oil filter.(*)
Inspect the CV joints. X X X X X X X
Inspect front suspension, boot seals, tie rod ends, and replace if
necessary.XXX X X X X
Visually inspect condition of: exterior bodywork, underbody pro-
tection, pipes and hoses (exhaust - fuel system - brakes), rubber
elements (boots, sleeves, bushings, etc.).XXX X X X X
If using your vehicle in dusty or off-road conditions, inspect the
air cleaner filter, and replace if necessary.XXXXXXX XXX X X X X X
Inspect the brake linings, parking brake function. X X X X X X X
Check and, if necessary, top up fluid levels. (°) X X X X X X X X X X X X X X X
Additional Maintenance
Replace engine air cleaner filter. X X X X X X X
Replace air conditioning/cabin air filter. X X X X X X X
Change brake fluid every 24 months if using DOT 4 brake fluid.
(**)XXX X X X X
Replace the engine fuel filter. X X X X X X X
Inspect accessory drive and timing belt. X X X
Replace accessory drive belt. (***) X X
215