2019 JEEP COMPASS check engine

Under normal operating conditions, the cata-
lytic converter will not require maintenance.
However, it is important to keep the engine
properly tuned to assure proper catalyst opera-
tion and prevent possible catalyst damage.
NOTE:
Intentional tampering with emissions control
systems can result in civil penalties being
assessed against you.
In unusual situations involving grossly mal-
functioning engine operation, a scorching
odor may suggest severe and abnormal cata-
lyst overheating. If this occurs, stop the ve-
hicle, turn off the engine and allow it to cool.
Service, including a tune-up to manufactur-
er's specifications, should be obtained imme-
diately.
To minimize the possibility of catalytic con-
verter damage:
• Do not interrupt the ignition when the
transmission is in gear and the vehicle is in
motion.
• Do not try to start the vehicle by pushing or
towing the vehicle.• Do not idle the engine with any ignition
components disconnected or removed,
such as when diagnostic testing, or for
prolonged periods during very rough idle or
malfunctioning operating conditions.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 open a cooling
system pressure cap when the radiator or
coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when
the hood is raised. The fan starts auto-
matically and may start at any time,
whether the engine is running or not.
• When working near the radiator cooling
fan, turn the ignition to the OFF mode.
The fan is temperature controlled and
can start at any time the ignition is in the
ON mode.
Coolant Checks
Check engine coolant (antifreeze) protection
every 12 months (before the onset of freezing
weather, where applicable). If the engine
coolant (antifreeze) is dirty or rusty in appear-
ance, the system should be drained, flushed
and refilled with fresh engine coolant (anti-
freeze). Check the front of the A/C condenser
for any accumulation of bugs, leaves, etc. If
dirty, clean by gently spraying water from a
garden hose vertically down the face of the
condenser.
Cooling System Pressure Cap
The cap must be fully tightened to prevent
loss of engine coolant (antifreeze), and to
ensure that engine coolant (antifreeze) will
return to the radiator from the coolant expan-
sion bottle/recovery tank if so equipped.
The cap should be inspected and cleaned if
there is any accumulation of foreign material
on the sealing surfaces.
247

WARNING!
• Do not open hot engine cooling system.
Never add engine coolant (antifreeze)
when the engine is overheated. Do not
loosen or remove the cap to cool an
overheated engine. Heat causes pres-
sure to build up in the cooling system. To
prevent scalding or injury, do not remove
the pressure cap while the system is hot
or under pressure.
• Do not use a pressure cap other than the
one specified for your vehicle. Personal
injury or engine damage may result.
Brake System
In order to assure brake system performance,
all brake system components should be in-
spected periodically. Refer to the “Mainte-
nance Plan” in this section for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure
and possibly a collision. Driving with your
foot resting or riding on the brake pedal
can result in abnormally high brake tem-
peratures, excessive lining wear, and pos-
sible brake damage. You would not have
your full braking capacity in an emergency.
Brake Master Cylinder
The fluid in the master cylinder should be
checked when performing under hood ser-
vices or immediately if the “Brake Warning
Light” is illuminated.
Be sure to clean the top of the master cylin-
der area before removing the cap. If neces-
sary, add fluid to bring the fluid level up to
the requirements described on the brake
fluid reservoir. With disc brakes, fluid level
can be expected to fall as the brake pads
wear. Brake fluid level should be checked
when pads are replaced. However, low fluid
level may be caused by a leak and a checkup
may be needed.
Use only manufacturer's recommended brake
fluid. Refer to “Fluids And Lubricants” in
“Technical Specifications” for further information.
WARNING!
• Use only manufacturer's recommended
brake fluid. Refer to “Fluids And Lubri-
cants” in “Technical Specifications” for
further information. Using the wrong
type of brake fluid can severely damage
your brake system and/or impair its per-
formance. The proper type of brake fluid
for your vehicle is also identified on the
original factory installed hydraulic mas-
ter cylinder reservoir.
• To avoid contamination from foreign
matter or moisture, use only new brake
fluid or fluid that has been in a tightly
closed container. Keep the master cylin-
der reservoir cap secured at all times.
Brake fluid in a open container absorbs
moisture from the air resulting in a lower
boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake fail-
ure. This could result in a collision.
SERVICING AND MAINTENANCE
248

WARNING!
• Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot en-
gine parts, causing the brake fluid to
catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should
be taken to avoid its contact with these
surfaces.
• Do not allow petroleum based fluid to
contaminate the brake fluid. Brake seal
components could be damaged, causing
partial or complete brake failure. This
could result in a collision.
Manual Transmission — If Equipped
Fluid Level Check
Check the fluid level by removing the fill
plug. The fluid level should be between the
bottom of the fill hole and a point not more
than 3/16 inch (4.7 mm) below the bottom of
the hole.
Add fluid, if necessary, to maintain the proper
level.
Please see your authorized dealer for service.
Automatic Transmission
Selection Of Lubricant
It is important to use the proper transmission
fluid to ensure optimum transmission perfor-
mance and life. Use only the manufacturer's
specified transmission fluid. Refer to “Fluids
And Lubricants” in “Technical Specifica-
tions” for fluid specifications. It is important
to maintain the transmission fluid at the
correct level using the recommended fluid.
NOTE:
No chemical flushes should be used in any
transmission; only the approved lubricant
should be used.
CAUTION!
Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift
quality and/or torque converter shudder.
Refer to “Fluids And Lubricants” in “Tech-
nical Specifications” for fluid specifica-
tions.
Special Additives
The manufacturer strongly recommends
against using any special additives in the
transmission. Automatic Transmission Fluid
(ATF) is an engineered product and its perfor-
mance may be impaired by supplemental
additives. Therefore, do not add any fluid
additives to the transmission. Avoid using
transmission sealers as they may adversely
affect seals.
CAUTION!
Do not use chemical flushes in your trans-
mission as the chemicals can damage your
transmission components. Such damage
is not covered by the New Vehicle Limited
Warranty.
Fluid Level Check
The fluid level is preset at the factory and
does not require adjustment under normal
operating conditions. Routine fluid level
checks are not required; therefore the trans-
mission has no dipstick. An authorized dealer
can check your transmission fluid level using
special service tools. If you notice fluid leak-
249

The suggested Four Wheel Drive (4WD) Tire
rotation method is the “rearward cross”
shown in the following diagram.
CAUTION!
Proper operation of four-wheel drive ve-
hicles depends on tires of equal size, type
and circumference on each wheel. Any
difference in tire size can cause damage to
the power transfer unit. Tire rotation
schedule should be followed to balance
tire wear.
STORING THE VEHICLE
If the vehicle should remain stationary for
more than a month, observe the following
precautions:
• Park your vehicle in a covered, dry and
possibly airy location the windows open
slightly.
• Check that the Electric Park Brake is not
engaged.
• Disconnect the negative (-) terminal from
the battery post and be sure that the battery
is fully charged. During storage check bat-
tery charge quarterly.
• If you do not disconnect the battery from
the electrical system, check the battery
charge every 30 days.
• Clean and protect the painted parts by
applying protective waxes.
• Clean and protect polished metal parts by
applying protective waxes.
• Apply talcum powder to the front and rear
wiper blades and leave raised from the
glass.• Cover the vehicle with an appropriate cover
taking care not to damage the painted sur-
face by dragging across dirty surfaces. Do
not use plastic sheeting which will not allow
the evaporation of moisture present on the
surface of the vehicle.
• Inflate the tires at a pressure of +7.25 psi
(+0.5 bar) higher than recommended on
the tire placard and check it periodically.
• Do not drain the engine cooling system.
• Whenever you leave the vehicle stationary
for two weeks or more, idle the engine for
approximately five minutes, with the air
conditioning system on and high fan speed.
This will ensure proper lubrication of the
system, thus minimizing the possibility of
damage to the compressor when the vehicle
is put back into operation.
NOTE:
When the vehicle has not been started or
driven for at least 30 days, an Extended Park
Start Procedure is required to start the ve-
hicle.
Refer to “Starting The Engine” in “Starting
And Operating” for further information.
Four Wheel Drive (4WD) Tire Rotation
259

CAUTION!
Do not load your vehicle any heavier than
the GVWR or the maximum front and rear
GAWR. If you do, parts on your vehicle can
break, or it can change the way your ve-
hicle handles. This could cause you to lose
control. Also overloading can shorten the
life of your vehicle. Never exceed the maxi-
mum combined vehicle load value: the
maximum towable load is only allowed if it
does not exceed the maximum combined
vehicle load.
FUEL REQUIREMENTS —
GASOLINE ENGINE
1.4L Turbo Gasoline Engine
This engine is designed to meet all emission
regulations and provide satisfactory fuel
economy and performance when using high-
quality unleaded gasoline having a minimum
research octane rating (RON) of 95. For op-
timum performance and fuel economy the
use of minimum research octane rating
(RON) of 98 or higher is recommended.Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Ethanol
The manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 10% ethanol. Purchasing your fuel from
a reputable supplier may reduce the risk of
exceeding this 10% limit and/or of receiving
fuel with abnormal properties.
CAUTION!
Use of fuel with Ethanol content higher
than 10% may result in engine malfunc-
tion, starting and operating difficulties,
and materials degradation. These adverse
effects could result in permanent damage
to your vehicle.
Materials Added To Fuel
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish re-
moval may contain active solvents or similar
ingredients. These can harm fuel system gas-
ket and diaphragm materials.
Fuel Icon Identification Compliant To
EN16942
The following symbols make it easier to rec-
ognize the correct type of fuel to be used on
your vehicle. Before proceeding with the sup-
ply, check the symbols placed inside the fuel
filler flap (if present) and compare them with
the symbol on the fuel pump (if present).
269

UCONNECT SETTINGS
The Uconnect system allows you to access
Customer Programmable feature settings
such as Display, Units, Voice, Clock, Safety &
Driving Assistance, Lights, Doors & Locks,
Auto-On Comfort, Engine Off Options, Audio,
Phone/Bluetooth, Restore Settings, Clear
Personal Data, and System Information
through buttons on the touchscreen.
Push the SETTINGS button (Uconnect
3 With 5–inch Display and Uconnect 4 With
7–inch Display), or press the “Apps” button
(Uconnect 4C/4C NAV With 8.4–inch Dis-
play) located near the bottom of the touch-
screen, then press the “Settings” button on
the touchscreen to access the Settings
screen. When making a selection, scroll up or
down until the preferred setting is high-
lighted, then press the preferred setting until
a check-mark appears next to the setting,
showing that setting has been selected.The following feature settings are available:• Language • Auto-On Comfort
& Remote Start
— If Equipped
• Display • Engine Off
Options
• Units • Audio
• Voice • Radio Setup
• Clock or
Time & Date• Phone/Bluetooth
• Safety & Driving
Assistance• Restore Settings
• Brakes • Clear Personal
Data
• Lights • System
Information
• Doors & Locks
NOTE:
Depending on the vehicles options, feature
settings may vary.
Refer to “Uconnect Settings” in “Multimedia”
in the Owner’s Manual for further information.
TIPS CONTROLS AND
GENERAL INFORMATION
Steering Wheel Audio Controls
The steering wheel audio controls are located
on the rear surface of the steering wheel.
Left Switch
• Push the switch up or down to search for
the next listenable station.
Steering Wheel Audio Controls
307

Accessories..................280
Mopar...................280
Active Speed Limiter............162
Adaptive Cruise Control (ACC)
(Cruise Control)..............165
Adding Fuel.................183
Additives, Fuel................269
AirBag ....................108
Air Bag Operation............109
Air Bag Warning Light.........107
Enhanced Accident Response .119, 230
Event Data Recorder (EDR)......230
If Deployment Occurs.........118
Knee Impact Bolsters.........115
Maintaining Your Air Bag System . .121
Maintenance...............121
Redundant Air Bag Warning Light . .108
Side Air Bags..............115
Transporting Pets............137
Air Bag Light...........64, 107, 139
Air Conditioner Maintenance.......245
Air Conditioner Refrigerant........245
Air Conditioner System...........245
Air Conditioning................46
Air Conditioning Filter.........48, 245Air Conditioning, Operating Tips......47
Air Pressure
Tires....................251
Alarm
Arm The System.............18
Disarm The System............19
Security Alarm............18, 68
Alarm System
Security Alarm............18, 19
Android Auto.............293, 330
Antifreeze (Engine Coolant)........274
Anti-Lock Brake System (ABS).......79
Anti-Lock Warning Light...........68
Apple CarPlay.............294, 330
Arming System
Security Alarm..............18
Assist, Hill Start................86
Audio Jack..............
.291, 299
Audio Systems (Radio)...........285
Auto Down Power Windows.........49
Automatic Headlights............34
Automatic High Beams...........34
Automatic Temperature Control (ATC) . . .47
Automatic Transaxle............151
Automatic Transmission..........152Adding Fluid...............279
Fluid Level Check............249
Fluid Type.............249, 279
Special Additives............249
Auto Up Power Windows...........49
Auxiliary Electrical Outlet
(Power Outlet)...............56
Auxiliary (Power Outlet)...........56
Axle Lubrication...............279
Battery..................66, 244
Charging System Light..........66
Belts, Seat..................138
Blind Spot Monitoring............88
Brake Assist System...........80, 91
Brake Control System, Electronic.....80
Brake Fluid..................279
Brake System................248
Fluid Check............248, 279
Master Cylinder.............248
Parking..................145
Warning Light...............65
Brake/Transmission Interlock.......152
Bulb Replacement.............193
INDEX
349

Bulbs, Light.................140
Camera, Rear................179
Capacities, Fluid..............274
Caps, Filler
Fuel....................180
Oil (Engine)...............240
Radiator (Coolant Pressure)......247
Carbon Monoxide Warning.....138, 272
Car Washes..................260
Chains, Tire..................257
Change Oil Indicator.............61
Changing A Flat Tire.........208, 250
Check Engine Light (Malfunction
Indicator Light)..............77
Checking Your Vehicle For Safety. . . .138
Checks, Safety................138
Child Safety Locks..............23
Cleaning
Windshield Wiper Blades.......245
Climate Control................39
Clock Settings................284
Compact Spare Tire.............256
Computer, Trip/Travel.............64
Cooling Pressure Cap (Radiator Cap) . .247
Cooling System...............247
Coolant Level..............247Cooling Capacity............274
Pressure Cap...............247
Radiator Cap...............247
Selection Of Coolant
(Antifreeze)............274, 276
Cruise Light.............74, 75, 76
Customer Assistance............332
Customer Programmable Features. . . .307
Cybersecurity.................282
Daytime Running Lights........33, 34
Dealer Service................245
Defroster, Windshield............139
Diagnostic System, Onboard........76
Diesel Fuel.................
.272
Diesel Fuel Requirements
.........272
Dimmer Switch
Headlight...............33, 34
Dipsticks
Oil (Engine)...............243
Disabled Vehicle Towing..........226
Do Not Disturb............320, 329
Door Ajar.................66, 67
Door Ajar Light..............66, 67
Drag And Drop Menu............289
Driver’s Seat Back Tilt............24Easy Entry Seats...............27
Electrical Outlet, Auxiliary
(Power Outlet)...............56
Electric Brake Control System.......80
Anti-Lock Brake System.........79
Traction Control System.........80
Electric Parking Brake...........145
Electronic Speed Control
(Cruise Control)..............163
Electronic Stability Control (ESC).....82
Electronic Throttle Control
Warning Light...............66
Emergency, In Case Of
Hazard Warning Flasher........193
Jacking...............208, 250
Jump Starting..............220
Tow Hooks................228
Towing...................226
Emission Control System
Maintenance................77
Emissions...................280
Engine.....................240
Checking Oil Level...........243
Coolant (Antifreeze)..........276
Cooling..................247
Exhaust Gas Caution.......138, 272
Jump Starting..............220
INDEX
350