ECU JEEP COMPASS 2023 Service Manual

SAFETY241
(Continued)
SAFETY CHECKS YOU SHOULD MAKE
I
NSIDE THE VEHICLE
Seat Belts
Inspect the seat belt system periodically, checking
for cuts, frays, and loose parts. Damaged parts
must be replaced immediately. Do not
disassemble or modify the system.
If your vehicle is involved in a collision, or if you
have questions regarding the seat belt or retractor
conditions, take your vehicle to an authorized FCA
dealer or authorized FCA Certified Collision Care
Program facility for inspection.
Air Bag Warning Light
The Air Bag Warning Light will turn on for
four to eight seconds as a bulb check
when the ignition switch is first placed in
the ON/RUN position. If the light is either
not on during starting, stays on, or turns on while
driving, have the system inspected at an
authorized dealer as soon as possible. After the
bulb check, this light will illuminate with a single
chime when a fault with the Air Bag System has
been detected. It will stay on until the fault is
removed. If the light comes on intermittently or
remains on while driving, have an authorized
dealer service the vehicle immediately
Ú page 204.
Defroster
Check operation by selecting the defrost mode and
place the blower control on high speed. You should
be able to feel the air directed against the
windshield. See an authorized dealer for service if
your defroster is inoperable.
Floor Mat Safety Information
Always use floor mats designed to fit your vehicle.
Only use a floor mat that does not interfere with the
operation of the accelerator, brake or clutch
pedals. Only use a floor mat that is securely
attached using the floor mat fasteners so it cannot
slip out of position and interfere with the
accelerator, brake or clutch pedals or impair safe
operation of your vehicle in other ways.
WARNING!
An improperly attached, damaged, folded, or
stacked floor mat, or damaged floor mat
fasteners may cause your floor mat to interfere
with the accelerator, brake, or clutch pedals and
cause a loss of vehicle control. To prevent
SERIOUS INJURY or DEATH:
 ALWAYS securely attach your floor
mat using the floor mat fasteners.
DO NOT install your floor mat upside
down or turn your floor mat over.
Lightly pull to confirm mat is secured using the
floor mat fasteners on a regular basis.
 ALWAYS REMOVE THE EXISTING
FLOOR MAT FROM THE VEHICLE
before installing any other floor mat.
NEVER install or stack an additional
floor mat on top of an existing floor mat.
ONLY install floor mats designed to fit your
vehicle. NEVER install a floor mat that cannot
be properly attached and secured to your
vehicle. If a floor mat needs to be replaced,
only use a FCA approved floor mat for the
specific make, model, and year of your
vehicle.
6

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242SAFETY
(Continued)
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and uneven
wear patterns. Check for stones, nails, glass, or
other objects lodged in the tread or sidewall.
Inspect the tread for cuts and cracks. Inspect
sidewalls for cuts, cracks, and bulges. Check the
lug nut/bolt torque for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause should
be located and corrected immediately.
ONLY use the driver’s side floor mat on the
driver’s side floor area. To check for interfer -
ence, with the vehicle properly parked with the
engine off, fully depress the accelerator, the
brake, and the clutch pedal (if present) to
check for interference. If your floor mat inter -
feres with the operation of any pedal, or is not
secure to the floor, remove the floor mat from
the vehicle and place the floor mat in your
trunk.
ONLY use the passenger’s side floor mat on
the passenger’s side floor area.
ALWAYS make sure objects cannot fall or slide
into the driver’s side floor area when the
vehicle is moving. Objects can become
trapped under accelerator, brake, or clutch
pedals and could cause a loss of vehicle
control.
WARNING!
NEVER place any objects under the floor mat
(e.g., towels, keys, etc.). These objects could
change the position of the floor mat and may
cause interference with the accelerator,
brake, or clutch pedals.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners are
secure to the vehicle carpet. Fully depress
each pedal to check for interference with the
accelerator, brake, or clutch pedals then
re-install the floor mats.
It is recommended to only use mild soap and
water to clean your floor mats. After cleaning,
always check your floor mat has been properly
installed and is secured to your vehicle using
the floor mat fasteners by lightly pulling mat.
WARNING!

22_MP_OM_EN_USC_t.book Page 242

IN CASE OF EMERGENCY249

1. Open the liftgate.

2. Lift the access cover using the load floor handle.

Load Floor Handle
Spare Tire Removal
3. Remove the fastener securing the spare tire,
and remove the spare wheel from the vehicle.
The jack will be found beneath.

Spare Tire Fastener

4. Remove the alignment pin from the middle, rotate the jack counterclockwise, and lift it
from the foam tray.
5. Remove the jack and wheel bolt wrench.
Jack And Tools

1 — Wheel Bolt Wrench
2 — Jack
3 — Emergency Funnel
4 — Screwdriver
5 — Alignment Pin
6 — Tow Eye (If Equipped)
WARNING!
A loose tire or jack thrown forward in a collision
or hard stop could endanger the occupants of
the vehicle. Always stow the jack parts and the
spare tire in the places provided. Have the
deflated (flat) tire repaired or replaced
immediately.
7

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250IN CASE OF EMERGENCY
(Continued)
JACKING INSTRUCTIONS

Jack Warning Label

1. Remove the spare tire, jack, and wheel bolt wrench.

2. If equipped with aluminum wheels where the center cap covers the wheel bolts, use the
wheel bolt wrench to pry the center cap off
carefully before raising the vehicle. 3. Before raising the vehicle, use the wheel bolt
wrench to loosen, but not remove, the wheel
bolts on the wheel with the flat tire. Turn the
wheel bolts counterclockwise one turn while
the wheel is still on the ground.
NOTE:Placement for the front and rear jack locations are
critical. See below images for proper jacking loca -
tions.

Jacking Locations

WARNING!
Carefully follow these tire changing warnings to
help prevent personal injury or damage to your
vehicle:
Always park on a firm, level surface as far from
the edge of the roadway as possible before
raising the vehicle.
Turn on the Hazard Warning Flashers.
Apply the parking brake firmly and set the
transmission in PARK.
Block the wheel diagonally opposite the wheel
to be raised.
Never start or run the engine with the vehicle
on a jack.
Do not let anyone sit in the vehicle when it is
on a jack.
Do not get under the vehicle when it 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.
Only use the jack in the positions indicated
and for lifting this vehicle during a tire change.
If working on or near a roadway, be extremely
careful of motor traffic.
To ensure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with
the valve stem facing the ground.
WARNING!
CAUTION!
Do not attempt to raise the vehicle by jacking on
locations other than those indicated in the
Jacking Instructions for this vehicle.

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252IN CASE OF EMERGENCY
NOTE:
For vehicles equipped, do not attempt to
install a center cap or wheel cover on the
compact spare.
For additional warnings, cautions, and infor -
mation about the spare tire, its use, and
operation Ú page 298.
9. Install and lightly tighten the wheel bolts.
10. Lower the vehicle to the ground by turning the jack handle counterclockwise.
11. Finish tightening the wheel bolts. Push down on the wrench while at the end of the handle
for increased leverage. Tighten the wheel bolts
in a star pattern until each wheel bolt has been
tightened twice Úpage 319. If in doubt about
the correct tightness, have them checked with
a torque wrench by an authorized dealer or at
a service station. 12. Lower the jack until it is free. Remove the
wheel blocks. Reassemble the lug wrench to
the jack assembly and stow it in the spare tire
area. Secure the assembly using the means
provided. Release the parking brake before
driving the vehicle.

Damaged Tire Stowage

13. After 25 miles (40 km), check the wheel bolt torque with a torque wrench to ensure that all
wheel bolts are properly seated against the
wheel. 14. Place the jack on the foam tray and open it far
enough so that it is secured. Once placed in
position, rotate it clockwise to lock it in.
Replace the alignment pin in the center hole to
lock the jack in place.
TIRE SERVICE KIT — IF EQUIPPED
Your vehicle may be equipped with a Tire Service
Kit. Small punctures up to 1/4 inch (6 mm) in the
tire tread can be sealed with Tire Service Kit.
Foreign objects (e.g., screws or nails) should not be
removed from the tire. Tire Service Kit can be used
in outside temperatures down to approximately
-4°F (-20°C). This kit will provide a temporary tire
seal, allowing you to drive your vehicle up to
100 miles (160 km) with a maximum speed of
50 mph (80 km/h).
WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the wheel nuts fully until the
vehicle has been lowered. Failure to follow this
warning may result in serious injury.
WARNING!
A loose tire or jack thrown forward in a collision
or hard stop could endanger the occupants of
the vehicle. Always stow the jack parts and the
spare tire in the places provided. Have the
deflated (flat) tire repaired or replaced
immediately.

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264IN CASE OF EMERGENCY
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled vehicle using a commercial towing service.
Proper towing or lifting equipment is required to
prevent damage to your vehicle. Use only tow bars
and other equipment designed for this purpose,
following equipment manufacturer’s instructions.
Use of safety chains is mandatory. Attach a tow bar
or other towing devices to main structural
members of the vehicle, not to fascia/bumper or
associated brackets. State and local laws
regarding vehicles under tow must be observed.
NOTE:
You must ensure that the Auto Park Brake
feature is disabled before towing this vehicle to
avoid inadvertent Electric Park Brake engage -
ment. The Auto Park Brake feature is enabled or
disabled via the customer programmable
features in the Uconnect Settings.
Vehicles with a discharged battery, or total elec -
trical failure when the Electric Park Brake (EPB)
is engaged, will need a wheel dolly or jack to
raise the rear wheels off the ground when
moving the vehicle onto a flatbed.
If you must use the accessories (wipers,
defrosters, etc.) while being towed, the ignition
must be in the ON/RUN mode.
Note that the Safehold feature will engage the
Electric Park Brake whenever the driver's door is
opened (if the battery is connected, ignition is ON,
transmission is not in PARK, and brake pedal is
released). If you are towing this vehicle with the
ignition in the ON/RUN mode, you must manually
disable the Electric Park Brake each time the
driver's door is opened by pressing the brake pedal
and then releasing the EPB. If the vehicle’s battery is discharged, instructions
on shifting the automatic transmission out of PARK
so that the vehicle can be moved Ú
page 262.
Towing Condition
Wheels OFF The GroundFWD MODELS 4X4 MODELS
Flat Tow NONENOT ALLOWED NOT ALLOWED
Wheel Lift Or Dolly Tow Rear
NOT ALLOWED NOT ALLOWED
Front OKNOT ALLOWED
Flatbed ALLBEST METHOD ONLY METHOD
CAUTION!
Do not use sling-type equipment when towing.
Vehicle damage may occur.
When securing the vehicle to a flatbed truck,
do not attach to front or rear suspension
components. Damage to your vehicle may
result from improper towing.
Ensure that the Electric Park Brake is
released, and remains released, while being
towed.
Do not use a fascia/bumper mounted
clamp-on tow bar on your vehicle. The fascia/
bumper face bar will be damaged.

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282SERVICING AND MAINTENANCE
(Continued)
Do not overfill the coolant expansion bottle.
Check the coolant freeze point in the radiator
and in the coolant expansion bottle. If engine
coolant needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing.
If frequent engine coolant additions are
required, the cooling system should be pressure
tested for leaks.
Maintain engine coolant concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corro-
sion protection of your engine which contains
aluminum components.
Make sure that the coolant expansion bottle
overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. If your
vehicle is equipped with air conditioning, keep
the front of the condenser clean.
Do not change the thermostat for Summer or
Winter operation. If replacement is ever neces -
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
engine cooling performance, poor gas mileage,
and increased emissions.
BRAKE SYSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically. For the proper maintenance intervals
Ú page 268.
Brake Master Cylinder
The fluid in the master cylinder should be checked
when performing under hood services or
immediately if the Brake Warning Light is
illuminated.
Be sure to clean the top of the master cylinder area
before removing the cap. If necessary, 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 the manufacturer recommended brake
fluid Ú
page 324.
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 temperatures, excessive lining wear,
and possible brake damage. You would not have
your full braking capacity in an emergency.

WARNING!
Use only the manufacturer recommended
brake fluid Úpage 324. Using the wrong type
of brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master 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 cylinder 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 failure.
This could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine 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.

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288SERVICING AND MAINTENANCE
F37 – ––
F38 –10 Amp Red ECM / TCM / AGSM / DCSM / STM
F39 – ––
F40 – ––
F41 – ––
F42 –20 Amp Yellow Cargo Power Outlet – Ignition power
F43 – –Cargo Power Outlet (Can be replaced with 20 Amp fuse in F42 direct battery power)
F44 – ––
F45 – ––
F46 –30 Amp Tan Drivetrain Control Module (DTCM) AWD Power
F47 –30 Amp Tan Front Windshield Defrost*
F48 – ––
F49 –15 Amp Blue Transmission Control Module (TCM)
F50 –5 Amp Tan Drive Train Control Module (DTCM) ECU Power
F51 –20 Amp Yellow NOX SNSR Feed (Diesel Engine)
F52 –5 Amp Tan Automatic Gearbox Shifter Module (AGSM) (Diesel & Gas)
F53 – ––
F54 – ––
F55 – ––
F56 – ––
Cavity Cartridge Fuse Mini Fuse Description
* If Equipped

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290SERVICING AND MAINTENANCE
Interior Fuses
The interior fuse panel is located in the passenger compartment on the left side dash panel under the instrument panel.
CavityBlade Fuse Description
*If Equipped
F31 7.5 Amp Brown Occupant Restraint Controller
F33 20 Amp Yellow Window Motor Passenger
F34 20 Amp Yellow Window Motor Driver
F36 20 Amp YellowIntrusion Module/Siren, Radio, UCI/USB Port, VSU, Climate Control,
Electronic Steering Lock, Power Folding Mirrors, Security Gateway/DTV
F37 10 Amp RedInstrument Panel Cluster, Drivetrain Control Module, Adaptive Cruise,
ECC (HVAC) Blower
F38 20 Amp Yellow Door Lock/Unlock, Liftgate Release
F42 7.5 Amp Brown Brake System Module, Electric Power Steering
F43 20 Amp Yellow Washer Pump Front And Rear
F47 20 Amp Yellow Rear Left Window Lifter
F48 20 Amp Yellow Rear Right Window Lifter
F49 7.5 Amp BrownPark Assist, Blind Spot, Voltage Stabilizer, Humidity Sensor, Electronic Steering Lock,
Temp Sense, Mirror, Heated Seats, Light And Rain Sensor, Start Stop Switch
F50 7.5 Amp Brown Occupant Restraint Controller
F51 7.5 Amp BrownElectronic Climate Control, Occupant Classification, Rear View Camera, Climate Control,
Headlamp Leveling, Terrain Select, Heated Rear Window, Trailer Tow, Haptic Lane Mod
F53 7.5 Amp Brown Keyless Ignition Node Module, Electric Park Brake, RF Hub, Cluster
F94 15 Amp Blue Lumbar Adjust Driver Seat, Power Outlets

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329
INDEX
A
Active Lane Management System................. 145Adaptive Cruise Control (ACC)........................ 116Adding Engine Coolant (Antifreeze)............... 280Additives, Fuel............................................... 322Air Bag........................................................... 214Air Bag Operation...................................... 215Air Bag Warning Light...................... 213, 216Driver Knee Air Bag................................... 219Enhanced Accident Response......... 224, 266Event Data Recorder (EDR)....................... 266Front Air Bag............................................. 216If Deployment Occurs................................ 223Knee Impact Bolsters................................ 219Maintaining Your Air Bag System.............. 227Maintenance............................................. 227Redundant Air Bag Warning Light.............214Side Air Bags............................................. 220Transporting Pets...................................... 240Air Bag Light........................................ 213, 241Air Cleaner, Engine
(Engine Air Cleaner Filter).............................. 274Air Conditioner Maintenance......................... 274Air Conditioner Refrigerant.................. 274, 275Air Conditioner System.................................. 274Air Conditioning Filter............................. 57, 275
Air Conditioning, Operating Tips....................... 56Air Filter........................................................ 274Air PressureTires......................................................... 306AlarmArm The System.......................................... 21Disarm The System..................................... 22Security Alarm...................................... 21, 92Alarm SystemSecurity Alarm............................................. 21Alterations/ModificationsVehicle......................................................... 10Antifreeze (Engine Coolant)................. 280, 323Disposal................................................... 281Anti-Lock Brake System (ABS)...................... 187Anti-Lock Warning Light................................... 92Arming SystemSecurity Alarm............................................. 21Assist, Hill Start............................................. 193Audio Systems (Radio).................................. 164Auto Down Power Windows............................. 62Auto Hold...................................................... 105Automatic Dimming Mirror............................... 37Automatic Door Locks...................................... 25Automatic Headlights....................................... 45Automatic High Beams.................................... 45
Automatic Temperature Control (ATC)..............56Automatic Transaxle..................................... 106Automatic Transmission................................ 107Adding Fluid..................................... 283, 324Fluid And Filter Change............................. 283Fluid Change............................................. 283Fluid Level Check...................................... 283Fluid Type........................................ 283, 324Special Additives...................................... 283Automatic Transmission Limp Home Mode......25Auxiliary Electrical Outlet (Power Outlet)..........59Axle Fluid....................................................... 324Axle Lubrication............................................ 324
B
Battery................................................... 90, 272Charging System Light.................................90Keyless Key Fob Replacement....................15Battery Saver Feature......................................88Belts, Seat.................................................... 241Blind Spot Monitoring................................... 194Body Mechanism Lubrication........................ 275B-Pillar Location............................................ 303Brake Assist System..................................... 188Brake Control System, Electronic.................. 188Brake Fluid.................................................... 324
11

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