service JEEP CHEROKEE TRAILHAWK 2016 User Guide

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer
for service if your vehicle overheats. If you decide to
look under the hood yourself, see “Maintaining Your
Vehicle”. Follow the warnings under the Cooling
System Pressure Cap paragraph.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 327

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer
for service if your vehicle overheats. If you decide to
look under the hood yourself, see “Maintaining Your
Vehicle”. Follow the warnings under the Cooling
System Pressure Cap paragraph.
WARNING AND INDICATOR LIGHTS
IMPORTANT:The warning / indicator lights switch on
in the instrument panel together with a dedicated mes-
sage and/or acoustic signal when applicable. These
indications are indicative and precautionary and as such
must not be considered as exhaustive and/or alternative
to the information contained in the Owner ’s Manual,
which you are advised to read carefully in all cases.
Always refer to the information in this chapter in the
event of a failure indication.
All active telltales will display first if applicable. The
system check menu may appear different based upon
equipment options and current vehicle status. Some
telltales are optional and may not appear.
330 UNDERSTANDING YOUR INSTRUMENT PANEL

The dual brake system provides a reserve braking capac-
ity in the event of a failure to a portion of the hydraulic
system. A leak in either half of the dual brake system is
indicated by the Brake Warning Light, which will turn on
when the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level condi-
tions. The vehicle should have service performed, and
the brake fluid level checked.
If brake failure is indicated, immediate repair is necessary.

When brake service work is complete, the following steps
must be followed to reset the park brake system to
normal operation:
•Ensure the vehicle is at a standstill.
• Press the brake pedal with moderate force.
• Apply the Electric Park Brake Switch.

WARNING!(Continued)
•The capabilities of an ABS equipped vehicle must
never be exploited in a reckless or dangerous
manner that could jeopardize the user ’s safety or
the safety of others.
ABS is designed to function with the OEM tires. Modifi-
cation may result in degraded ABS performance.
Anti-Lock Brake Warning Light
The amber “Anti-Lock Brake Warning Light” will turn on
when the ignition switch is turned to the ON position
and may stay on for as long as four seconds.
If the “Anti-Lock Brake Warning Light” remains on or
comes on while driving, it indicates that the anti-lock
portion of the brake system is not functioning and that
service is required. However, the conventional brake
system will continue to operate normally if the “Brake
System Warning Light” is not on. If the “Anti-Lock Brake Warning Light” is on, the brake
system should be serviced as soon as possible to restore
the benefits of anti-lock brakes. If the “Anti-Lock Brake
Warning Light” does not come on when the ignition
switch is turned to the ON position, have the light
repaired as soon as possible.
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by sens-
ing the rate and amount of brake application and then
applies optimum pressure to the brakes. This can help
reduce braking distances. The BAS complements the
anti-lock brake system (ABS). Applying the brakes very
quickly results in the best BAS assistance. To receive the
benefit of the system, you must apply continuous brak-
ing pressure during the stopping sequence, (do not
“pump” the brakes). Do not reduce brake pedal pressure5
STARTING AND OPERATING 533

These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes a 1/16 of an inch (1.6 mm). When the tread is
worn to the tread wear indicators, the tire should be
replaced. Refer to “Replacement Tires” in this section for
further information.
Life Of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
•Driving style.
• Tire pressure - Improper cold tire inflation pressures
can cause uneven wear patterns to develop across the
tire tread. These abnormal wear patterns will reduce
tread life, resulting in the need for earlier tire replace-
ment.
• Distance driven. •
Performance tires, tires with a speed rating of V or
higher, and Summer tires typically have a reduced
tread life. Rotation of these tires per the vehicle main-
tenance schedule is highly recommended.

WARNING!
To avoid the risk of forcing the vehicle off the jack,
do not tighten the lug nuts fully until the vehicle has
been lowered. Failure to follow this warning may
result in personal injury.
TIRE SERVICE KIT — IF EQUIPPED
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 55 mph (90 km/h).
Tire Service Kit Storage
The Tire Service Kit is stowed under the load floor behind
the rear seat.
1. Open the liftgate.
2. Lift the access cover using the load floor handle.

•When the Tire Service Kit sealant is in a liquid form,
clean water, and a damp cloth will remove the material
from the vehicle or tire and wheel components. Once
the sealant dries, it can easily be peeled off and
properly discarded.
• For optimum performance, make sure the valve stem
on the wheel is free of debris before connecting the Tire
Service Kit.
• You can use the Tire Service Kit air pump to inflate
bicycle tires. The kit also comes with two needles,
located in the Accessory Storage Compartment (on the
bottom of the air pump) for inflating sport balls, rafts,
or similar inflatable items. However, use only the Air
Pump Hose (7) and make sure the Mode Select Knob
(5) is in the Air Mode when inflating such items to
avoid injecting sealant into them. The Tire Service Kit
Sealant is only intended to seal punctures less than 1/4
inch (6 mm) diameter in the tread of your tire. •
Do not lift or carry the Tire Service Kit by the hoses.

WARNING!(Continued)
– If you are unsure of the condition of the tire or
the wheel.
• Keep Tire Service Kit away from open flames or
heat source.
• A loose Tire Service Kit thrown forward in a
collision or hard stop could endanger the occupants
of the vehicle. Always stow the Tire Service Kit in
the place provided. Failure to follow these warn-
ings can result in injuries that are serious or fatal to
you, your passengers, and others around you.
• Take care not to allow the contents of Tire Service
Kit to come in contact with hair, eyes, or clothing.
Tire Service Kit sealant is harmful if inhaled,
swallowed, or absorbed through the skin. It causes
skin, eye, and respiratory irritation. Flush immedi-
ately with plenty of water if there is any contact
(Continued)

(D) Drive Vehicle:
Immediately after injecting sealant and inflating the tire,
drive the vehicle 5 miles (8 km) or 10 minutes to ensure
distribution of the Tire Service Kit Sealant within the tire.
Do not exceed 55 mph (90 km/h).