2021 JEEP PATRIOT engine

WARNING!
•Never leave children alone in a vehicle, or
with access to an unlocked vehicle. Allow-
ing 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
gear selector.
•Do not leave the Key Fob in or near the
vehicle, or in a location accessible to chil-
dren. A child could operate power win-
dows, other controls, or move the vehicle.
•Be sure the parking brake is fully disen-
gaged before driving; failure to do so can
lead to brake failure and a collision.
•
Always fully apply the parking brake when
leaving your vehicle, or it may roll and cause
damage or injury. Also, be certain to leave a
manual transmission in REVERSE or first
gear. Failure to do so may cause the vehicle
to roll and cause damage or injury.
CAUTION!
If the “Brake Warning Light” remains on with
the parking brake released, a brake system
malfunction is indicated. Have the brake
system serviced by an authorized dealer
immediately.
BRAKE SYSTEM
Your vehicle is equipped with power assisted
brakes as standard equipment. In the event
power assist is lost for any reason (for example,
repeated brake applications with the engine off),
the brakes will still function. However, the effort
required to brake the vehicle will be much
greater than that required with the power sys-
tem operating.
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
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WARNING!(Continued)
result in abnormally high brake tempera-
tures, excessive lining wear, and possible
brake damage. You would not have your full
braking capacity in an emergency.
If either of the two hydraulic systems lose
normal capability, the remaining system will still
function with some loss of overall braking effec-
tiveness. This will be evident by increased pedal
travel during application and greater pedal force
required to slow or stop. In addition, if the
malfunction is caused by an internal leak, as the
brake fluid in the master cylinder drops, the
“Brake Warning Light” will light.
WARNING!
Driving a vehicle with the “Brake Warning
Light” on is dangerous. A significant de-
crease in braking performance or vehicle
stability during braking may occur. It will take
you longer to stop the vehicle or will make
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WARNING!(Continued)
vehicles, people, and objects, and most im-
portantly brake operation to ensure safe
operation of the vehicle under all road con-
ditions. Your complete attention is always
required while driving to maintain safe con-
trol of your vehicle. Failure to follow these
warnings can result in a collision or serious
personal injury.
Towing With HSA
HSA will also provide assistance to mitigate roll
back while towing a trailer.
WARNING!
•If you use a trailer brake controller with
your trailer, the trailer brakes may be acti-
vated and deactivated with the brake
switch. If so, there may not be enough
brake pressure to hold both the vehicle
and the trailer on a hill when the brake
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WARNING!(Continued)
pedal is released. In order to avoid rolling
down an incline while resuming accelera-
tion, manually activate the trailer brake or
apply more vehicle brake pressure prior to
releasing the brake pedal.
•HSA is not a parking brake. Always apply
the parking brake fully when leaving your
vehicle. Also, be certain to leave the trans-
mission in PARK.
•Failure to follow these warnings may
cause the vehicle to roll down the incline
and could collide with another vehicle,
object or person, and cause serious or
fatal injury. Always remember to use the
parking brake while parking on a hill and
that the driver is responsible for braking
the vehicle.
Disabling And Enabling HSA
This feature can be turned on or turned off. To
change the current setting, proceed as follows:•For vehicles equipped with the Electronic
Vehicle Information Center (EVIC), refer to
“Electronic Vehicle Information Center
(EVIC)” in “Understanding Your Instrument
Panel” for further information.
•If disabling HSA using Uconnect Settings,
refer to “Uconnect Settings” in “Understand-
ing Your Instrument Panel” for further
information.
For vehicles not equipped with the EVIC, per-
form the following steps:
1. Center the steering wheel (front wheels
pointing straight forward).
2. Shift the transmission into PARK.
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
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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 switch to the OFF position
and then back to the ON position. 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 drivenaxle is spinning faster than the other, the sys-
tem 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 over-steering or
under-steering of the vehicle by applying the
brake of the appropriate wheel to assist in
counteracting the over-steering or under-
steering condition. Engine power may also be
reduced to help the vehicle maintain the desired
path. ESC uses sensors in the vehicle to deter-
mine 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
over-steer or under-steer condition
•Oversteer - when the vehicle is turning more
than appropriate for the steering wheel posi-
tion.•Understeer - when the vehicle is turning less
than appropriate for the steering wheel
position.
WARNING!
•The Electronic Stability Control (ESC) can-
not 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, including
those resulting from excessive speed in
turns, driving on very slippery surfaces, or
hydroplaning. ESC also cannot prevent
collisions resulting from loss of vehicle
control due to inappropriate driver input for
the conditions. Only a safe, attentive, and
skillful driver can prevent collisions.
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WARNING!(Continued)
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 re-
duced. Trailer Sway control (TSC) (if
equipped) is disabled when the ESC system
is in the"Partial Off"mode.
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 maneuverability due to trail con-
ditions. 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 sec-tion, 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"Full Off"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 in-
tended 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 igni-
tion switch is cycled to the ON/
RUN position. 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 30 mph (48 km/h), see your authorized
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dealer as soon as possible to have the problem
diagnosed and corrected.
The “ESC Activation/Malfunction Indicator
Light” (located 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 accel-
erator and apply as little throttle as possible. Be
sure to adapt your speed and driving to the
prevailing road conditions.
NOTE:
•The “ESC Off Indicator Light” and the
“ESC Activation/Malfunction Indicator
Light” come on momentarily each time
the ignition switch is placed in the ON/
RUN position.
•Each time the ignition is cycled to the
ON/RUN position, the ESC system will be
ON even if it was cycled off previously,
except for when the vehicle is started
while in 4L Range.•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” in-
dicates the Electronic Stability
Control (ESC) is partially off or full
off.
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 steer-
ing wheel angle and vehicle’s speed are suffi-
cient 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 preventwheel lift due to other factors, such as road
conditions, leaving the roadway, or striking ob-
jects 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.
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 leav-
ing the roadway or striking objects or other
vehicles. 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.
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the “SERVICE TPM SYSTEM” message will no
longer be displayed as long as no system fault
exists.
To reactivate the TPMS, replace all four wheel
and tire assemblies (road tires) with tires
equipped with TPM sensors. Then, drive the
vehicle for up to 10 minutes above 15 mph
(24 km/h). The TPMS will chime, the “TPM
Telltale Light” will flash on and off for 75 sec-
onds and then turn off, and the Electronic
Vehicle Information Center (EVIC) will display
the “SERVICE TPM SYSTEM” message. The
EVIC will also display pressure values in place
of the dashes. On the next ignition switch cycle,
the “SERVICE TPM SYSTEM” message will no
longer be displayed as long as no system fault
exists.
FUEL REQUIREMENTS —
GASOLINE ENGINE
All gasoline engines are designed to meet all
emissions regulations and provide excellent
fuel economy and performance when using
high quality unleaded gasoline with a minimum
research octane rating (RON) of 91.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 hesitations. If you
experience these symptoms, try another brand
of gasoline before considering service for the
vehicle.
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives are
recommended. Using gasolines that have these
additives may help improve fuel economy, re-
duce emissions, and maintain vehicle perfor-
mance.
Poor quality gasoline can cause problems such
as hard starting, stalling and stumble. If you
experience these problems, try another brand
of gasoline before considering service for the
vehicle.
Methanol(Methyl) is used in a variety of concentrations
when blended with unleaded gasoline. You mayfind fuels containing 3% or more methanol
along with other alcohols called cosolvents.
Problems that result from using methanol/
gasoline blends are not the responsibility of the
manufacturer.
CAUTION!
Do not use gasolines containing Methanol.
Use of these blends may result in starting
and drivability problems and may damage
critical fuel system components.
EthanolThe manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 15% ethanol. Purchasing your fuel from a
reputable supplier may reduce the risk of ex-
ceeding this 15% limit and/or of receiving fuel
with abnormal properties. It should also be
noted that an increase in fuel consumption
should be expected when using ethanol-
blended fuels, due to the lower energy content
of ethanol. Problems that result from using
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methanol/gasoline or E-85 ethanol blends are
not the responsibility of the manufacturer.
CAUTION!
Use of fuel with Ethanol content higher than
15% may result in engine malfunction, start-
ing and operating difficulties, and materials
degradation. These adverse effects could
result in permanent damage to your vehicle.
Clean Air GasolineMany gasolines are now being blended that
contribute to cleaner air, especially in those
areas where air pollution levels are high. These
new blends provide a cleaner burning fuel and
some are referred to as “reformulated gasoline.”
The manufacturer supports these efforts toward
cleaner air. You can help by using these blends
as they become available.
MMT In GasolineMMT is a manganese containing metallic addi-
tive that is blended into some gasoline to in-
crease octane. Gasoline blended with MMTprovides no performance advantage beyond
gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces
spark plug life and reduces emission system
performance in some vehicles. The manufac-
turer recommends that gasoline without MMT
be used in your vehicle. The MMT content of
gasoline may not be indicated on the gasoline
pump; therefore, you should ask your gasoline
retailer whether or not his/her gasoline contains
MMT.
Materials Added To FuelBesides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives are
recommended. Using gasolines that have these
additives will help improve fuel economy, re-
duce emissions, and maintain vehicle perfor-
mance.
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these ma-
terials intended for gum and varnish removal
may contain active solvents or similar ingredi-ents. These can harm fuel system gasket and
diaphragm materials.
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to pre-
vent carbon monoxide poisoning:
•Do not inhale exhaust gases. They contain
carbon monoxide, a colorless and odor-
less gas which can kill. Never run the
engine in a closed area, such as a garage,
and never sit in a parked vehicle with the
engine running for an extended period. If
the vehicle is stopped in an open area with
the engine running for more than a short
period, adjust the ventilation system to
force fresh, outside air into the vehicle.
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WARNING!(Continued)
•Guard against carbon monoxide with
proper maintenance. Have the exhaust
system inspected every time the vehicle is
raised. Have any abnormal conditions re-
paired promptly. Until repaired, drive with
all side windows fully open.
•Keep the liftgate closed when driving your
vehicle to prevent carbon monoxide and
other poisonous exhaust gases from en-
tering the vehicle.
ADDING FUEL
Locking Fuel Filler Cap (Gas Cap)The locking gas cap is inside the fuel filler door,
on the left side of the vehicle. If the gas cap is
lost or damaged, be sure the replacement cap
is for use with this vehicle.
1. Turn off the engine.2. Insert the ignition key into the fuel cap and
turn the key one-quarter turn to the right,
then rotate the fuel cap to the left to remove.
3. After removing the gas cap, place the gas
cap tether cable over a hook on the inside of
the fuel door. This keeps the gas cap sus-
pended away from and protects the vehicle’s
surface.
4. Rotate the ignition key back to the left to
remove the key from the cap.
5. To replace the cap, insert it into the filler neck
and tighten to the right until at least one click
is heard.NOTE:
•When the fuel nozzle “clicks” or shuts off,
the fuel tank is full.
•Tighten the gas cap about 1/4 turn until
you hear one click. This is an indication
that cap is properly tightened.
•If the gas cap is not tightened properly,
the MIL will come on. Be sure the gas cap
is tightened every time the vehicle is
refueled.
Loose Fuel Filler Cap MessageIf the vehicle diagnostic system determines that
the fuel filler cap is loose or improperly installed,
a “gASCAP” message will be displayed in the
Odometer/Trip Odometer in the instrument clus-
ter. Refer to “Warning And Indicator Lights” in
“Understanding Your Instrument Panel” for fur-
ther information. Tighten the fuel filler cap prop-
erly and push the odometer/trip odometer RE-
SET button to turn the message off. If the
problem continues, the message will appear the
next time the vehicle is started. Refer to “On-
board Diagnostic System” in “Maintaining Your
Vehicle” for further information.
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