Jeep Patriot (2017 year). Manual

• The MIL will not flash at all and will remain fully

illuminated until you place the ignition in the off posi-
tion or start the engine. This means that your vehicle’s
OBD II system is ready and you can proceed to the I/M
station.

If your OBD II system is not ready, you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your vehicle
as you normally would in order for your OBD II system to
update. A recheck with the above test routine may then
indicate that the system is now ready.

Regardless of whether your vehicle’s OBD II system is
ready or not, if the MIL is illuminated during normal
vehicle operation you should have your vehicle serviced
before going to the I/M station. The I/M station can fail
your vehicle because the MIL is on with the engine
running.

128

GETTING TO KNOW YOUR INSTRUMENT PANEL

SAFETY FEATURES

Anti-Lock Brake System (ABS)

The Anti-Lock Brake System (ABS) provides increased
vehicle stability and brake performance under most brak-
ing conditions. The system automatically prevents wheel
lock, and enhances vehicle control during braking.

The ABS performs a self-check cycle to ensure that the ABS
is working properly each time the vehicle is started and
driven. During this self-check, you may hear a slight
clicking sound as well as some related motor noises.

ABS is activated during braking when the system detects
one or more wheels begin to lock. Road conditions such as
ice, snow, gravel, bumps, railroad tracks, loose debris, or
panic stops may increase the likelihood of ABS activa-
tion(s).

You also may experience the following when ABS activates:

• The ABS motor noise (it may continue to run for a short

time after the stop).

• The clicking sound of solenoid valves.
• Brake pedal pulsations.
• A slight drop of the brake pedal at the end of the stop.

These are all normal characteristics of ABS.

WARNING!

• The ABS contains sophisticated electronic equip-

ment that may be susceptible to interference caused
by improperly installed or high output radio trans-
mitting equipment. This interference can cause pos-
sible loss of anti-lock braking capability. Installation
of such equipment should be performed by qualified
professionals.

• Pumping of the Anti-Lock Brakes will diminish their

effectiveness and may lead to a collision. Pumping
makes the stopping distance longer. Just press firmly
on your brake pedal when you need to slow down or
stop.

• The ABS cannot prevent the natural laws of physics

from acting on the vehicle, nor can it increase brak-
ing or steering efficiency beyond that afforded by the
condition of the vehicle brakes and tires or the
traction afforded.

• The ABS cannot prevent collisions, including those

resulting from excessive speed in turns, following
another vehicle too closely, or hydroplaning.

(Continued)

130

SAFETY

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. Modifica-
tion may result in degraded ABS performance.

Anti-Lock Brake Warning Light

The yellow “Anti-Lock Brake Warning Light” will turn on
when the ignition is turned to the ON mode 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 sys-
tem 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 Warn-
ing Light” does not come on when the ignition is turned to
the ON mode, have the light repaired as soon as possible.

Electronic Brake Control System

Your vehicle is equipped with an advanced Electronic
Brake Control system (EBC). This system includes Elec-
tronic Brake Force Distribution (EBD), Anti-Lock Brake
System (ABS), Brake Assist System (BAS), Hill Start Assist
(HSA), Traction Control System (TCS), Electronic Stability
Control (ESC), and Electronic Roll Mitigation (ERM). These
systems work together to enhance both vehicle stability
and control in various driving conditions.

Your vehicle may also be equipped with Hill Descent
Control (HDC).

Electronic Brake Force Distribution (EBD)

This function manages the distribution of the braking
torque between the front and rear axles by limiting braking
pressure to the rear axle. This is done to prevent overslip of
the rear wheels to avoid vehicle instability, and to prevent
the rear axle from entering ABS before the front axle.

Brake System Warning Light

The red “Brake System Warning Light” will turn on when
the ignition is turned to the ON mode and may stay on for
as long as four seconds.

SAFETY

131

If the “Brake System Warning Light” remains on or comes
on while driving, it indicates that the brake system is not
functioning properly and that immediate service is re-
quired. If the “Brake System Warning Light” does not come
on when the ignition is turned to the ON mode, 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 sys-
tem detects an emergency braking situation by sensing 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 braking pressure
during the stopping sequence, (do not “pump” the brakes).
Do not reduce brake pedal pressure unless braking is no
longer desired. Once the brake pedal is released, the BAS is
deactivated.

WARNING!

The Brake Assist System (BAS) cannot prevent the
natural laws of physics from acting on the vehicle, nor
can it increase the traction afforded by prevailing road
conditions. BAS cannot prevent collisions, including
those resulting from excessive speed in turns, driving
on very slippery surfaces, or hydroplaning. The capa-
bilities of a BAS-equipped vehicle must never be
exploited in a reckless or dangerous manner, which
could jeopardize the user’s safety or the safety of
others.

Hill Start Assist (HSA)

The HSA system is designed to mitigate roll back from a
complete stop while on an incline. If the driver releases the
brake while stopped on an incline, HSA will continue to
hold the brake pressure for a short period. If the driver
does not apply the throttle before this time expires, the
system will release brake pressure and the vehicle will roll
down the hill as normal.

The following conditions must be met in order for HSA to
activate:

• The feature must be enabled.

132

SAFETY

• The vehicle must be stopped.
• Park brake must be off.
• Driver door must be closed.
• The vehicle must be on a sufficient grade.
• The gear selection must match vehicle uphill direction

(i.e., vehicle facing uphill is in forward gear; vehicle
backing uphill is in REVERSE gear).

• HSA will work in REVERSE gear and all forward gears.

The system will not activate if the transmission is in
PARK or NEUTRAL. For vehicles equipped with a
manual transmission, if the clutch is pressed, HSA will
remain active.

WARNING!

There may be situations where the Hill Start Assist
(HSA) will not activate and slight rolling may occur,
such as on minor hills or with a loaded vehicle, or
while pulling a trailer. HSA is not a substitute for
active driving involvement. It is always the driver’s
responsibility to be attentive to distance to other ve-
hicles, people, and objects, and most importantly brake

(Continued)

WARNING! (Continued)

operation to ensure safe operation of the vehicle under
all road conditions. Your complete attention is always
required while driving to maintain safe control of your
vehicle. Failure to follow these warnings can result in
a collision or serious personal injury.

Disabling And Enabling HSA

This feature can be turned on or turned off. To change the
current setting, proceed as follows:

• If disabling HSA using your instrument cluster display,

refer to “Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information.

• If disabling HSA using Uconnect Settings, refer to

“Uconnect Settings” in “Multimedia” for further infor-
mation.

For vehicles not equipped with an instrument cluster
display, perform the following steps:

1. Center the steering wheel (front wheels pointing

straight forward).

2. Shift the transmission into PARK.

SAFETY

133

3. Apply the parking brake.

4. Start the engine.

5. Rotate the steering wheel slightly more than one-half

turn to the left.

6. Push the “ESC Off” button located in the lower switch

bank below the climate control four times within twenty
seconds. The “ESC Off Indicator Light” should turn on
and turn off two times.

7. Rotate the steering wheel back to center and then an

additional slighty more than one-half turn to the right.

8. Turn the ignition to the OFF mode and then back to ON.

If the sequence was completed properly, the “ESC Off
Indicator Light” will blink several times to confirm HSA
is disabled.

9. Repeat these steps if you want to return this feature to

its previous setting.

Traction Control System (TCS)

This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, the TCS may
apply brake pressure to the spinning wheel(s) and/or
reduce engine power to provide enhanced acceleration and
stability. A feature of the TCS, Brake Limited Differential

(BLD), functions similar to a limited slip differential and
controls the wheel spin across a driven axle. If one wheel
on a driven axle is spinning faster than the other, the
system will apply the brake of the spinning wheel. This
will allow more engine torque to be applied to the wheel
that is not spinning. BLD may remain enabled even if TCS
and ESC are in a reduced mode.

Electronic Stability Control (ESC)

This system enhances directional control and stability of
the vehicle under various driving conditions. ESC corrects
for oversteering or understeering of the vehicle by apply-
ing the brake of the appropriate wheel(s) to assist in
counteracting the oversteer or understeer condition. En-
gine power may also be reduced to help the vehicle
maintain the desired path.

ESC uses sensors in the vehicle to determine the vehicle
path intended by the driver and compares it to the actual
path of the vehicle. When the actual path does not match
the intended path, ESC applies the brake of the appropriate
wheel to assist in counteracting the oversteer or understeer
condition.

• Oversteer - when the vehicle is turning more than

appropriate for the steering wheel position.

134

SAFETY

• Understeer - when the vehicle is turning less than

appropriate for the steering wheel position.

The “ESC Activation/Malfunction Indicator Light” located
in the instrument cluster will start to flash as soon as the
ESC system becomes active. The “ESC Activation/
Malfunction Indicator Light” also flashes when the TCS is
active. If the “ESC Activation/Malfunction Indicator
Light” begins to flash during acceleration, ease up on the
accelerator and apply as little throttle as possible. Be sure to
adapt your speed and driving to the prevailing road
conditions.

WARNING!

• Electronic Stability Control (ESC) cannot prevent the

natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. ESC cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. ESC also cannot prevent accidents resulting
from loss of vehicle control due to inappropriate
driver input for the conditions. Only a safe, attentive,

(Continued)

WARNING! (Continued)

and skillful driver can prevent accidents. The capa-
bilities of an ESC equipped vehicle must never be
exploited in a reckless or dangerous manner which
could jeopardize the user’s safety or the safety of
others.

• Vehicle modifications, or failure to properly main-

tain your vehicle, may change the handling charac-
teristics of your vehicle, and may negatively affect
the performance of the ESC system. Changes to the
steering system, suspension, braking system, tire
type and size or wheel size may adversely affect ESC
performance. Improperly inflated and unevenly
worn tires may also degrade ESC performance. Any
vehicle modification or poor vehicle maintenance
that reduces the effectiveness of the ESC system can
increase the risk of loss of vehicle control, vehicle
rollover, personal injury and death.

ESC Operating Modes

The ESC system has three available operating modes for
four–wheel drive equipped vehicles and two available
operating modes for two–wheel drive equipped vehicles.

SAFETY

135

Full On (Four-Wheel Drive Models) Or On (Two-Wheel
Drive Models)

This is the normal operating mode for ESC. Whenever the
vehicle is started, the ESC system will be in this “On”
mode. This mode should be used for most driving situa-
tions. ESC should only be turned to “Partial Off” or “ESC
Off” for specific reasons as noted below.

Partial Off (Four-Wheel Drive Models) Or On (Two-
Wheel Drive Models)

This mode is entered by momentarily pushing the “ESC
Off” switch. When in “Partial Off” mode, the TCS portion
of ESC, except for the “limited slip” feature described in
the TCS section, has been disabled, and the

⬙ESC OFF

Indicator Light

⬙ will be illuminated. All other stability

features of ESC function normally. This mode is intended
to be used if the vehicle is in deep snow, sand or gravel
conditions, and more wheel spin than ESC would normally
allow is required to gain traction.

To turn ESC on again, momentarily push the “ESC Off”
switch. This will restore the normal “ESC On” mode of
operation.

NOTE:

To improve the vehicle’s traction when driving

with snow chains, or starting off in deep snow, sand or
gravel, it may be desirable to switch to the “Partial Off”
mode by pushing the “ESC Off” switch. Once the situation
requiring ESC to be switched to the “Partial Off” mode is
overcome, turn ESC back on by momentarily pushing the
“ESC Off” switch. This may be done while the vehicle is in
motion.

WARNING!

When in “Partial Off” mode, the TCS functionality of
ESC (except for the limited slip feature described in
the TCS section) has been disabled and the “ESC Off
Indicator Light” will be illuminated. When in “Partial
Off” mode, the engine power reduction of TCS is
disabled, and the enhanced vehicle stability offered by
the ESC system is reduced. Trailer Sway control (TSC)
(if equipped) is disabled when the ESC system is in the

ⴖPartial Offⴖ mode.

136

SAFETY

Full Off (Four-Wheel Drive Models Only)

This mode is intended for off-highway or off-road use
when ESC stability features could inhibit vehicle maneu-
verability due to trail conditions. This mode is entered by
pushing and holding the “ESC Off” switch for five seconds
when the vehicle is stopped and the engine is running.
After five seconds, the

⬙ESC OFF Indicator Light⬙ will

illuminate and the “ESC OFF” message will appear in the
odometer. Push and release the Trip Odometer button
located on the instrument cluster to clear this message.

In this mode, ESC and TCS, except for the “limited slip”
feature described in the TCS section, are turned off until the
vehicle reaches a speed of 35 mph (56 km/h). At 35 mph
(56 km/h), the system returns to “Partial Off” mode, as
described above. TCS remains off. When the vehicle speed
drops below 30 mph (48 km/h), the ESC system shuts off.
ESC is deactivated at low vehicle speeds so that it will not
interfere with off-road driving however, ESC function
returns to provide the stability feature at speeds above
35 mph (56 km/h). The

⬙ESC OFF Indicator Light⬙ will

always be illuminated when ESC is off.

To turn ESC on again, momentarily push the “ESC Off”
switch. This will restore the “ESC On” mode of operation.

NOTE:

The “ESC OFF” message will display and an

audible chime will sound when the gear selector is placed
into the PARK position from any other position, and then
moved out of the PARK position. This will occur even if the
message was previously cleared.

WARNING!

In the

ⴖFull Offⴖ mode, the engine torque reduction and

stability features are disabled. In an emergency evasive
maneuver, the ESC system will not engage to assist in
maintaining stability. “ESC Off” mode is intended for
off-highway or off-road use only.

ESC Activation/Malfunction Indicator Light and ESC
OFF Indicator Light

The “ESC Activation/Malfunction Indicator
Light” in the instrument cluster will come on
when the ignition is turned to the ON mode. It
should go out with the engine running. If the

“ESC Activation/Malfunction Indicator Light” comes on
continuously with the engine running, a malfunction has
been detected in the ESC system. If this light remains on
after several ignition cycles, and the vehicle has been
driven several miles (kilometers) at speeds greater than

SAFETY

137

30 mph (48 km/h), see your authorized dealer as soon as
possible to have the problem diagnosed and corrected.

The “ESC Activation/Malfunction Indicator Light” (lo-
cated in the instrument cluster) starts to flash as soon as the
tires lose traction and the ESC system becomes active. The
“ESC Activation/Malfunction Indicator Light” also flashes
when TCS is active. If the “ESC Activation/Malfunction
Indicator Light” begins to flash during acceleration, ease
up on the accelerator and apply as little throttle as possible.
Be sure to adapt your speed and driving to the prevailing
road conditions.

NOTE:

• The “ESC Activation/Malfunction Indicator Light” and

the “ESC OFF Indicator Light” come on momentarily
each time the ignition is turned ON.

• Each time the ignition is turned ON, the ESC system will

be on even if it was turned off previously.

• The ESC system will make buzzing or clicking sounds

when it is active. This is normal; the sounds will stop

when ESC becomes inactive following the maneuver
that caused the ESC activation.

The “ESC OFF Indicator Light” indicates the
customer has elected to have the Electronic Sta-
bility Control (ESC) in a reduced mode.

Electronic Roll Mitigation (ERM)

This system anticipates the potential for wheel lift by
monitoring the driver’s steering wheel input and the speed
of the vehicle. When ERM determines that the rate of
change of the steering wheel angle and vehicle’s speed are
sufficient to potentially cause wheel lift, it then applies the
appropriate brake and may also reduce engine power to
lessen the chance that wheel lift will occur. ERM can only
reduce the chance of wheel lift occurring during severe or
evasive driving maneuvers; it cannot prevent wheel lift
due to other factors, such as road conditions, leaving the
roadway, or striking objects or other vehicles.

NOTE:

ERM is disabled anytime the ESC is in “Full Off”

mode (if equipped). Refer to “Electronic Stability Control
(ESC)” in this section for a complete explanation of the
available ESC modes.

138

SAFETY

WARNING!

Many factors, such as vehicle loading, road conditions
and driving conditions, influence the chance that
wheel lift or rollover may occur. ERM cannot prevent
all wheel lift or roll overs, especially those that involve
leaving the roadway or striking objects or other ve-
hicles. The capabilities of an ERM-equipped vehicle
must never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety or the
safety of others.

Hill Descent Control (HDC) — If Equipped

This system maintains vehicle speed while descending hills
during off-road driving situations. HDC will automatically
apply the brakes to control downhill speed to between
4 mph (7 km/h) and 6 mph (9 km/h) depending on terrain.
The system is activated by placing the vehicle in “Off-
Road” mode and placing the gear selector in LOW or
REVERSE. Refer to “Off-Road Driving Tips” in “Starting
And Operating” for further information.

When HDC is properly enabled, the “Hill Decent
Control Light” in the instrument cluster will be
illuminated.

HDC has the capability to sense terrain and will only
activate when the vehicle is descending a hill. It will not
activate on level ground. If desired, HDC can be fully
deactivated by putting the vehicle into ESC “Full Off”
mode. This is done by pushing and holding the “ESC Off”
button for five seconds. Refer to “Electronic Stability
Control (ESC)” in this section of the manual.

HDC operation can be overridden with brake application
to slow the vehicle down below the HDC control speed.
Conversely, if more speed is desired during HDC control,
the accelerator pedal will increase vehicle speed like nor-
mal. When either the brake or the accelerator is released,
HDC will control the vehicle back to the original set speed.

HDC is only intended for low speed off-road driving. At
vehicle speeds above 31 mph (50 km/h), HDC will no
longer function. If the “HDC Indicator Light” begins to
flash, this indicates that the brakes are getting too hot and
the vehicle should be stopped to allow the brakes to cool.

WARNING!

HDC is only intended to assist the driver in controlling
vehicle speed when descending hills. The driver must
remain attentive to the driving conditions and is re-
sponsible for maintaining a safe vehicle speed.

SAFETY

139

AUXILIARY DRIVING SYSTEMS

Tire Pressure Monitoring System (TPMS)

The Tire Pressure Monitor System (TPMS) will warn the
driver of a low tire pressure based on the vehicle recom-
mended cold placard pressure.

The tire pressure will vary with temperature by about 1 psi
(7.0 kPa) for every 12°F (6.5°C). This means that when the
outside temperature decreases, the tire pressure will de-
crease. Tire pressure should always be set based on “cold
inflation tire pressure”. This is defined as the tire pressure
after the vehicle has not been driven for at least three
hours, or driven less than 1 mile (1.6 km) after a three hour
period. The cold tire inflation pressure must not exceed the
maximum inflation pressure molded into the tire sidewall.
Refer to “Tires – General Information” in “Servicing And
Maintenance” for information on how to properly inflate
the vehicle’s tires. The tire pressure will also increase as the
vehicle is driven - this is normal and there should be no
adjustment for this increased pressure.

The TPMS will warn the driver of a low tire pressure if the
tire pressure falls below the low-pressure warning limit for
any reason, including low temperature effects, or natural
pressure loss through the tire.

The TPMS will continue to warn the driver of low tire
pressure as long as the condition exists, and will not turn
off until the tire pressure is at or above the recommended
cold placard pressure. Once the low tire pressure warning
(Tire Pressure Monitoring Telltale Light) illuminates, you
must increase the tire pressure to the recommended cold
placard pressure in order for the Tire Pressure Monitoring
Telltale Light to turn off. The system will automatically
update and the Tire Pressure Monitoring Telltale Light will
turn off once the system receives the updated tire pres-
sures.

NOTE:

When filling warm tires, the tire pressure may need

to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
The vehicle may need to be driven for up to 10 minutes
above 15 mph (24 km/h) in order for the TPMS to receive
this information.

For example, your vehicle may have a recommended cold
(parked for more than three hours) placard pressure of 30
psi (207 kPa). If the ambient temperature is 68°F (20°C) and
the measured tire pressure is 27 psi (186 kPa), a tempera-
ture drop to 20°F (-7°C) will decrease the tire pressure to

140

SAFETY

approximately 23 psi (158 kPa). This tire pressure is suffi-
ciently low enough to turn ON the Tire Pressure Monitor-
ing Telltale Light. Driving the vehicle may cause the tire
pressure to rise to approximately 27 psi (186 kPa), but the
Tire Pressure Monitoring Telltale Light will still be ON. In
this situation, the Tire Pressure Monitoring Telltale Light
will turn OFF only after the tires are inflated to the
vehicle’s recommended cold placard pressure value.

NOTE:

When filling warm tires, the tire pressure may need

to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.

CAUTION!

• The TPMS has been optimized for the original

equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system op-
eration or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage.

(Continued)

CAUTION! (Continued)

• Using aftermarket tire sealants may cause the Tire

Pressure Monitoring System (TPMS) sensor to be-
come inoperable. After using an aftermarket tire
sealant it is recommended that you take your vehicle
to an authorized dealer to have your sensor function
checked.

• After inspecting or adjusting the tire pressure always

reinstall the valve stem cap. This will prevent mois-
ture and dirt from entering the valve stem, which
could damage the TPMS sensor.

NOTE:

• The TPMS is not intended to replace normal tire care and

maintenance or to provide warning of a tire failure or
condition.

• The TPMS should not be used as a tire pressure gauge

while adjusting your tire pressure.

• Driving on a significantly under-inflated tire causes the

tire to overheat and can lead to tire failure. Under-
inflation also reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and stopping
ability.

SAFETY

141

• The TPMS is not a substitute for proper tire mainte-

nance, and it is the driver’s responsibility to maintain
correct tire pressure using an accurate tire gauge, even if
under-inflation has not reached the level to trigger
illumination of the Tire Pressure Monitoring Telltale
Light.

• Seasonal temperature changes will affect tire pressure,

and the TPMS will monitor the actual tire pressure in the
tire.

Base System

This is the TPMS warning indicator located in the
instrument cluster.

The TPMS uses wireless technology with wheel rim
mounted electronic sensors to monitor tire pressure levels.
Sensors, mounted to each wheel as part of the valve stem,
transmit tire pressure readings to the Receiver Module.

NOTE:

It is particularly important for you to check the tire

pressure in all of the tires on your vehicle regularly and to
maintain the proper pressure.

The TPMS consists of the following components:

• Receiver Module.

• Four Tire Pressure Monitoring Sensors.
• Tire Pressure Monitoring Telltale Light.

Tire Pressure Monitoring Low Pressure Warnings

The Tire Pressure Monitoring Telltale Light will illuminate
in the instrument cluster, a LOW TIRE message will be
displayed for a minimum of five seconds, and an audible
chime will be activated when one or more of the four active
road tire pressures are low. Should this occur, you should
stop as soon as possible, check the inflation pressure of
each tire on your vehicle, and inflate each tire to the
vehicle’s recommended cold placard pressure value. The
system will automatically update and the Tire Pressure
Monitoring Light will extinguish and the LOW TIRE
message will turn off once the updated tire pressures have
been received.

NOTE:

When filling warm tires, the tire pressure may need

142

SAFETY

Check TPMS Warnings

The Tire Pressure Monitoring Telltale Light will flash on
and off for 75 seconds and remain on solid when a system
fault is detected. The system fault will also sound a chime.
If the ignition key is cycled, this sequence will repeat
providing the system fault still exists. The Tire Pressure
Monitoring Telltale Light will turn off when the fault
condition no longer exists. A system fault can occur with
any of the following scenarios:

1. Jamming due to electronic devices or driving next to

facilities emitting the same radio frequencies as the TPM
sensors.

2. Installing some form of aftermarket window tinting that

affects radio wave signals.

3. Snow or ice around the wheels or wheel housings.

4. Using tire chains on the vehicle.

5. Using wheels/tires not equipped with TPM sensors.

NOTE:

Your vehicle is equipped with a compact spare

wheel and tire assembly.

1. The compact spare tire does not have a tire pressure

monitoring sensor. Therefore, the TPMS will not moni-
tor the tire pressure in the compact spare tire.

2. If you install the compact spare tire in place of a road tire

that has a pressure below the low-pressure warning
limit, upon the next ignition key cycle, a chime will
sound and the Tire Pressure Monitoring Telltale Light
and LOW TIRE message will still turn ON due to the
low tire.

3. However, after driving the vehicle for up to 10 minutes

above 15 mph (24 km/h), the Tire Pressure Monitoring
Telltale Light will flash on and off for 75 seconds and
then remain on solid.

4. For each subsequent ignition key cycle, a chime will

sound and the Tire Pressure Monitoring Telltale Light
will flash on and off for 75 seconds and then remain on
solid.

5. Once you repair or replace the original road tire and

reinstall it on the vehicle in place of the compact spare
tire, the TPMS will update automatically and the Tire
Pressure Monitoring Telltale Light will turn OFF, as long
as no tire pressure is below the low-pressure warning
limit in any of the four active road tires. The vehicle may
need to be driven for up to 10 minutes above 15 mph
(24 km/h) in order for the TPMS to receive this infor-
mation.

SAFETY

143

Jeep Patriot (2017 year). Manual - part 9