2015 JEEP CHEROKEE service

•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.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
•If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
POWER STEERING
The electric power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will vary its assist to provide
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light efforts while parking and good feel while driving. If
the electric steering system experiences a fault that
reduces assist or prevents the vehicle from providing
assist, you will still have the ability to steer the vehicle
manually.
WARNING!
Continued operation with reduced assist could pose
a safety risk to yourself and others. Service should be
obtained as soon as possible.
If the “SERVICE POWER STEERING#OR
#POWER STEERING ASSIST OFF - SERVICE
SYSTEM” message and a steering wheel icon
are displayed on the EVIC/DID screen, it indi-
cates that the vehicle needs to be taken to the dealer for
service. It is likely the vehicle has lost power steering
assistance. Refer to “Electronic Vehicle Information
(EVIC) or#Driver Information Display (DID)” in “Under-
standing Your Instrument Panel” for further information.
If the “POWER STEERING SYSTEM HOT - PERFOR-
MANCE MAY BE LIMITED” message and an icon are
displayed on the EVIC/DID screen, it indicates that
extreme steering maneuvers may have occurred, which
caused an over temperature condition in the power
steering system. You will lose power steering assistance
momentarily until the over temperature condition no
longer exists. Once driving conditions are safe, then pull
over and let vehicle idle for a few moments until the light
turns off. Refer to “Electronic Vehicle Information
(EVIC)/Driver Information Display (DID)” in “Under-
standing Your Instrument Panel” for further information.
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NOTE:
•Even if the power steering assistance is no longer
operational, it is still possible to steer the vehicle.
Under these conditions there will be a substantial
increase in steering effort, especially at low speeds and
during parking maneuvers.
•If the condition persists, see your authorized dealer for
service.
ELECTRIC PARKING BRAKE (EPB)
Your vehicle is equipped with an Electric Parking Brake
System (EPB) that offers simple operation, and some
additional features that make the parking brake more
convenient and useful.
The parking brake is primarily intended to prevent the
vehicle from rolling while parked. Before leaving the
vehicle, make sure that the parking brake is applied.
Also, be certain to leave the transmission in PARK.
You can engage the parking brake in two ways;
•Manually, by applying the park brake switch.
•Automatically, by enabling the Auto Park Brake fea-
ture in the customer programmable features section of
the Uconnect® settings.
The parking brake switch is located in the center console.
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WARNING!(Continued)
•Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be
seriously or fatally injured. Children should be
warned not to touch the parking brake, brake pedal
or the shift lever.
•Do not leave the Key Fob in or near the vehicle, or
in a location accessible to children, and do not
leave a vehicle equipped with Keyless Enter-N-
Go™ in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or move
the vehicle.
•Be sure the parking brake is fully disengaged
before driving; failure to do so can lead to brake
failure and a collision.
(Continued)
WARNING!(Continued)
•Always fully apply the parking brake when leav-
ing your vehicle, or it may roll and cause damage or
injury. Also be certain to leave the transmission in
PARK. Failure to do so may allow the vehicle to roll
and cause damage or injury.
CAUTION!
If the Brake System Warning Light remains on with
the parking brake released, a brake system malfunc-
tion is indicated. Have the brake system serviced by
an authorized dealer immediately.
If exceptional circumstances should make it necessary to
engage the parking brake while the vehicle is in motion,
maintain upward pressure on the electric park brake
switch for as long as engagement is desired. The Brake
warning lamp will illuminate, and a continuous chime
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will sound. The rear stop lamps will also be illuminated
automatically while the vehicle remains in motion.
To disengage the parking brake while the vehicle is in
motion, release the switch. If the vehicle is brought to a
complete stop using the parking brake, when the vehicle
reaches approximately 3 mph, (5 km/h) the parking
brake will remain engaged.
WARNING!
Driving the vehicle with the parking brake engaged,
or repeated use of the parking brake to slow the
vehicle may cause serious damage to the brake sys-
tem.
In the unlikely event of a malfunction of the Electric Park
Brake system, a yellow EPB fault lamp will illuminate.
This may be accompanied by the Brake warning lamp
flashing. In this event, urgent service of the electric park
brake system is required. Do not rely on the parking
brake to hold the vehicle stationary.
Auto Park Brake
The electric park brake can be programmed to be applied
automatically whenever the vehicle is at a standstill and
the automatic transmission is placed in PARK, or with a
manual transmission, whenever the ignition switch is
turned “OFF”. Auto Park Brake is enabled and disabled
by customer selection through the customer program-
mable features section of the Uconnect® Settings.
Any single auto park brake application can be bypassed
by pressing the EPB switch to the release position while
the transmission is placed in PARK.
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Safehold
Safehold is a safety feature of the Electric Park Brake
System that will engage the park brake automatically if
the vehicle is left unsecured while the ignition switch is
in RUN.
For automatic transmissions, the park brake will auto-
matically engage if all of the following conditions are
met:
•The vehicle is at a standstill
•There is no attempt to depress the brake pedal or
accelerator pedal
•The seat belt is unbuckled
•The driver door is open
For manual transmissions, the park brake will automati-
cally engage if all of the following conditions are met:
•The vehicle is at a standstill
•There is no attempt to depress the brake pedal or
accelerator pedal
•The clutch pedal is not pressed
•The seat belt is unbuckled
•The driver door is open
Safehold can be temporarily bypassed by pressing the
Electric Park Brake Switch while the driver door is open.
Once manually bypassed, Safehold will be enabled again
once the vehicle reaches 12 mph (20 km/h) or the ignition
is turned to the OFF position and back to ON again.
Brake Service Mode
We recommend having your brakes serviced by your
authorized dealer. You should only make repairs for
which you have the knowledge and the right equipment.
You should only enter Brake Service Mode during brake
service.
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When servicing your rear brakes, it may be necessary for
you or your technician to push the rear piston into the
rear caliper bore. With the electric parking brake system,
this can only be done after retracting the Electric Parking
Brake actuator. Fortunately, actuator retraction can be
done easily by entering the Brake Service Mode through
the Uconnect® Settings in your vehicle. This menu based
system will guide you through the steps necessary to
retract the EPB actuator in order to perform rear brake
service.
Service Mode has requirements that must be met in order
to be activated:
•The vehicle must be at a standstill.
•The parking brake must be unapplied.
•The transmission must be in Park or Neutral.
While in service mode, the Electric Parking Brake fault lamp
will flash continuously while the ignition switch is ON.
When brake service work is complete, the following steps
must be followed to reset the parking brake system to
normal operation:
•Ensure the vehicle is at a standstill.
•Press the brake pedal with moderate force.
•Apply the Electric Parking Brake Switch.
WARNING!
You can be badly injured working on or around a
motor vehicle. Do only that 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.
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Ready Alert Braking (RAB)
Ready Alert Braking may reduce the time required to
reach full braking during emergency braking situations.
It anticipates when an emergency braking situation may
occur by monitoring how fast the throttle is released by
the driver. When the throttle is released very quickly,
Ready Alert Braking applies a small amount of brake
pressure. This brake pressure will not be noticed by the
driver. The brake system uses this brake pressure to allow
a fast brake response if the driver applies the brakes.
Rain Brake Support (RBS)
Rain Brake Support may improve braking performance
in wet conditions. It will periodically apply a small
amount of brake pressure to remove any water buildup
on the front brake rotors. It is triggered by the windshield
wiper setting and only functions when they are in use.
When Rainy Brake Support is active, there is no notifica-
tion to the driver and no driver interaction is required.
TIRE SAFETY INFORMATION
Tire Markings
1—U.S.DOTSafetyStandardsCode (TIN)4—MaximumLoad
2 — Size Designation 5 — Maximum Pressure3 — Service Description 6 — Treadwear, Traction andTemperature Grades
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