2021 JEEP PATRIOT engine

WARNING!(Continued)
•When leaving the vehicle, always remove
the ignition key from the vehicle and lock
the vehicle.
•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
transmission gear selector.
•Do not leave the ignition key 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.
Key Ignition Park InterlockThis vehicle is equipped with a Key Ignition Park
Interlock which requires the transmission to be
in PARK before the ignition switch can be turned
to the LOCK/OFF (key removal) position. The
key can only be removed from the ignition whenthe ignition is in the LOCK/OFF position, and
once removed the transmission is locked in
PARK.
NOTE:
If a malfunction occurs, the system will trap
the key in the ignition switch to warn you
that this safety feature is inoperable. The
engine can be started and stopped but the
key cannot be removed until you obtain
service.
Brake/Transmission Shift Interlock
System
This vehicle is equipped with a Brake Transmis-
sion Shift Interlock system (BTSI) that holds the
gear selector in PARK unless the brakes are
applied. To shift the transmission out of PARK,
the ignition switch must be turned to the ON/
RUN position (engine running or not) and the
brake pedal must be pressed.
Six-Speed Automatic Transmission
— If Equipped
The transmission gear position display (located
in the instrument cluster) indicates the transmis-
sion gear range. You must press the brakepedal to move the gear selector out of PARK
(refer to “Brake/Transmission Shift Interlock
System” in this section). To drive, move the gear
selector from PARK or NEUTRAL to the DRIVE
position.
The electronically-controlled transmission pro-
vides a precise shift schedule. The transmission
electronics are self-calibrating; therefore, the
first few shifts on a new vehicle may be some-
what abrupt. This is a normal condition, and
precision shifts will develop within a few hun-
dred miles (kilometers).
Only shift from DRIVE to PARK or REVERSE
when the accelerator pedal is released and the
vehicle is stopped. Be sure to keep your foot on
the brake pedal when shifting between these
gears.
The transmission gear selector has only PARK,
REVERSE, NEUTRAL, and DRIVE shift posi-
tions. Manual shifts can be made using the
AutoStick shift control (refer to “AutoStick” in
this section). Moving the gear selector to the left
or right (-/+) while in the DRIVE position will
169

manually select the transmission gear, and will
display the current gear in the instrument clus-
ter as 1, 2, 3, etc.
Gear Ranges
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range.
NOTE:
After selecting any gear range, wait a mo-
ment to allow the selected gear to engage
before accelerating. This is especially im-
portant when the engine is cold.
PARK (P)
This range supplements the parking brake by
locking the transmission. The engine can be
started in this range. Never attempt to use
PARK while the vehicle is in motion. Apply the
parking brake when leaving the vehicle in this
range.
When parking on a level surface, you may shift
the transmission into PARK first, and then apply
the parking brake.
When parking on a hill, apply the parking brake
before shifting the transmission to PARK, oth-
erwise the load on the transmission lockingmechanism may make it difficult to move the
gear selector out of PARK. As an added precau-
tion, turn the front wheels toward the curb on a
downhill grade and away from the curb on an
uphill grade.
WARNING!
•Never use the PARK position as a substi-
tute for the parking brake. Always apply
the parking brake fully when parked to
guard against vehicle movement and pos-
sible injury or damage.
•Your vehicle could move and injure you
and others if it is not in PARK. Check by
trying to move the gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
leaving the vehicle.
(Continued)
WARNING!(Continued)
•It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse.
You could lose control of the vehicle and
hit someone or something. Only shift into
gear when the engine is idling normally
and your foot is firmly pressing the brake
pedal.
•Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a ve-
hicle while the engine is running. Before
exiting a vehicle, always shift the transmis-
sion into PARK, apply the parking brake,
turn the engine OFF, and remove the igni-
tion key. Once the key is removed, the
transmission is locked in PARK, securing
the vehicle against unwanted movement.
(Continued)
170

WARNING!(Continued)
•When leaving the vehicle, always remove
the ignition key from the vehicle and lock
the vehicle.
•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 ignition key 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.
CAUTION!
•Before moving the gear selector out of
PARK, you must turn the ignition switch
from the LOCK/OFF position to the ON/
RUN position, and also press the brake
pedal. Otherwise, damage to the gear se-
lector could result.
•DO NOT race the engine when shifting
from PARK or NEUTRAL into another gear
range, as this can damage the drivetrain.
The following indicators should be used to
ensure that you have engaged the transmission
into the PARK position:
•When shifting into PARK, firmly move the
gear selector all the way forward and to the
left until it stops and is fully seated.
•Look at the transmission gear position dis-
play and verify that it indicates the PARK
position (P).
•With brake pedal released, verify that the
gear selector will not move out of PARK.REVERSE (R)
This range is for moving the vehicle backward.
Shift into REVERSE only after the vehicle has
come to a complete stop.
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running. The
engine may be started in this range. Apply the
parking brake and shift the transmission into
PARK if you must leave the vehicle.
WARNING!
Do not coast in NEUTRAL and never turn off
the ignition to coast down a hill. These are
unsafe practices that limit your response to
changing traffic or road conditions. You might
lose control of the vehicle and have a colli-
sion.
171

CAUTION!
Towing the vehicle, coasting, or driving for
any other reason with the transmission in
NEUTRAL can cause severe transmission
damage. Refer to “Recreational Towing” in
“Starting And Operating” and “Towing A Dis-
abled Vehicle” in “What To Do In Emergen-
cies” for further information.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest up-
shifts and downshifts, and the best fuel
economy. The transmission automatically up-
shifts through underdrive first, second, third,
and fourth gears, direct fifth gear and overdrive
sixth gear. The DRIVE position provides opti-
mum driving characteristics under all normal
operating conditions.
When frequent transmission shifting occurs
(such as when operating the vehicle under
heavy loading conditions, in hilly terrain, travel-
ing into strong head winds, or while towing
heavy trailers), use the AutoStick shift control(refer to “AutoStick (Six-Speed Automatic
Transmission)” in this section for further infor-
mation) to select a lower gear. Under these
conditions, using a lower gear will improve
performance and extend transmission life by
reducing excessive shifting and heat buildup.
If the transmission temperature exceeds normal
operating limits, the transmission controller will
modify the transmission shift schedule and ex-
pand the range of torque converter clutch en-
gagement. This is done to prevent transmission
damage due to overheating. If the transmission
becomes extremely hot, the “Transmission
Temperature Warning Light” may illuminate and
the transmission may operate differently until
the transmission cools down.
During very cold temperatures (-4°F [-20°C] or
below), transmission operation may be modified
depending on engine and transmission tem-
perature as well as vehicle speed. Normal op-
eration will resume once the transmission tem-
perature has risen to a suitable level.
Transmission Limp Home Mode
Transmission function is monitored electroni-
cally for abnormal conditions. If a condition isdetected that could result in transmission dam-
age, Transmission Limp Home Mode is acti-
vated. In this mode, the transmission remains in
fourth gear regardless of which forward gear is
selected. PARK, REVERSE, and NEUTRAL will
continue to operate. The Malfunction Indicator
Light (MIL) may be illuminated. Limp Home
Mode allows the vehicle to be driven to an
authorized dealer for service without damaging
the transmission.
In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition switch to the LOCK/OFF
position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the transmis-
sion will return to normal operation.
172

NOTE:
Even if the transmission can be reset, we
recommend that you visit your authorized
dealer at your earliest possible conve-
nience. Your authorized dealer has diagnos-
tic equipment to determine if the problem
could recur.
If the transmission cannot be reset, authorized
dealer service is required.
Overdrive Operation
The automatic transmission includes an elec-
tronically controlled Overdrive (sixth gear). The
transmission will automatically shift into Over-
drive if the following conditions are present:
•The gear selector is in the DRIVE position.
•The transmission fluid has reached an ad-
equate temperature.
•The engine coolant has reached an ad-
equate temperature.
•The vehicle speed is sufficiently high.
•The driver is not heavily pressing the
accelerator.Torque Converter Clutch
A feature designed to improve fuel economy
has been included in the automatic transmis-
sion on your vehicle. A clutch within the torque
converter engages automatically at calibrated
speeds. This may result in a slightly different
feeling or response during normal operation in
the upper gears. When the vehicle speed drops
or during some accelerations, the clutch auto-
matically disengages.
NOTE:
Engagement of the torque converter clutch
is inhibited at very cold temperatures. Be-
cause the engine speed is higher when the
torque converter clutch is not engaged, it
may seem as if the transmission is not
shifting into Overdrive when cold. This is
normal. The torque converter clutch will
function normally once the transmission is
sufficiently warm.
Continuously Variable Automatic
Transmission (CVT) — If Equipped
The transmission gear position display (located
in the instrument cluster) indicates the transmis-
sion gear range. You must press the brakepedal to move the gear selector out of PARK
(refer to “Brake/Transmission Shift Interlock
System” in this section). To drive, move the gear
selector from PARK or NEUTRAL to the DRIVE
position.
NOTE:
The Continuously Variable Automatic Trans-
mission (CVT) changes ratios in a continu-
ous manner. This may sometimesfeelas if
it is slipping, but this is normal and does not
harm anything.
Only shift from DRIVE to PARK or REVERSE
when the accelerator pedal is released and the
vehicle is stopped. Be sure to keep your foot on
the brake pedal when shifting between these
gears.
The transmission gear selector has only PARK,
REVERSE, NEUTRAL, and DRIVE shift posi-
tions. Manual shifts can be made using the
AutoStick shift control (refer to"AutoStick"in
this section). Moving the gear selector to the left
or right (-/+) while in the DRIVE position will
manually select from a set of predefined trans-
mission gear ratios, and will display the current
gear in the instrument cluster as 1, 2, 3, etc.
173

Gear Ranges
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range.
NOTE:
After selecting any gear range, wait a mo-
ment to allow the selected gear to engage
before accelerating. This is especially im-
portant when the engine is cold.
PARK (P)
This range supplements the parking brake by
locking the transmission. The engine can be
started in this range. Never attempt to use
PARK while the vehicle is in motion. Apply the
parking brake when leaving the vehicle in this
range.
When parking on a level surface, you may shift
the transmission into PARK first, and then apply
the parking brake.When parking on a hill, apply the parking brake
before shifting the transmission to PARK, oth-
erwise the load on the transmission locking
mechanism may make it difficult to move the
gear selector out of PARK. As an added precau-
tion, turn the front wheels toward the curb on a
downhill grade and away from the curb on an
uphill grade.
WARNING!
•Never use the PARK position as a substi-
tute for the parking brake. Always apply
the parking brake fully when parked to
guard against vehicle movement and pos-
sible injury or damage.
•Your vehicle could move and injure you
and others if it is not in PARK. Check by
trying to move the gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
leaving the vehicle.
(Continued)
WARNING!(Continued)
•It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse.
You could lose control of the vehicle and
hit someone or something. Only shift into
gear when the engine is idling normally
and your foot is firmly pressing the brake
pedal.
•Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a ve-
hicle while the engine is running. Before
exiting a vehicle, always shift the transmis-
sion into PARK, apply the parking brake,
turn the engine OFF, and remove the igni-
tion key. Once the key is removed, the
transmission is locked in PARK, securing
the vehicle against unwanted movement.
(Continued)
174

WARNING!(Continued)
•When leaving the vehicle, always remove
the ignition key from the vehicle and lock
the vehicle.
•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 ignition key 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.
CAUTION!
•Before moving the gear selector out of
PARK, you must turn the ignition switch
from the LOCK/OFF position to the ON/
RUN position, and also press the brake
pedal. Otherwise, damage to the gear se-
lector could result.
•DO NOT race the engine when shifting
from PARK or NEUTRAL into another gear
range, as this can damage the drivetrain.
The following indicators should be used to
ensure that you have engaged the transmission
into the PARK position:
•When shifting into PARK, firmly move the
gear selector all the way forward and to the
left until it stops and is fully seated.
•Look at the transmission gear position dis-
play and verify that it indicates the PARK
position (P).
•With brake pedal released, verify that the
gear selector will not move out of PARK.REVERSE (R)
This range is for moving the vehicle backward.
Shift into REVERSE only after the vehicle has
come to a complete stop.
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running. The
engine may be started in this range. Apply the
parking brake and shift the transmission into
PARK if you must leave the vehicle.
WARNING!
Do not coast in NEUTRAL and never turn off
the ignition to coast down a hill. These are
unsafe practices that limit your response to
changing traffic or road conditions. You might
lose control of the vehicle and have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for
any other reason with the transmission in
(Continued)
175

CAUTION!(Continued)
NEUTRAL can cause severe transmission
damage. Refer to “Recreational Towing” in
“Starting And Operating” and “Towing A Dis-
abled Vehicle” in “What To Do In Emergen-
cies” for further information.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the best fuel
economy. The DRIVE position provides opti-
mum driving characteristics under all normal
operating conditions.
When frequent transmission shifting occurs
(such as when operating the vehicle under
heavy loading conditions, in hilly terrain, travel-
ing into strong head winds, or while towing
heavy trailers), use the AutoStick shift control (if
equipped, refer to"AutoStick (CVT)"in this
section for further information) to select a lower
gear ratio. Under these conditions, using a
lower gear ratio will improve performance and
extend transmission life by reducing excessive
shifting and heat buildup.During sustained high speed driv-
ing or trailer towing up long grades
on hot days, the automatic trans-
mission oil may become too hot. If
this happens, the transmission
overheat indicator light will come on, and the
vehicle will slow slightly until the transmission
cools down enough to allow a return to the
requested speed. This is done to prevent trans-
mission damage due to overheating. If the high
speed is maintained, the overheating may reoc-
cur, as before, in a cyclic fashion.
LOW (L) — If Equipped
Use this range for engine braking when de-
scending very steep grades. In this range, the
transmission will downshift for maximum engine
braking, and upshifts will occur only to prevent
engine overspeed.
AUTOSTICK
AutoStick (Six-Speed Automatic
Transmission) — If Equipped
AutoStick is a driver-interactive transmission
feature providing manual shift control, givingyou more control of the vehicle. AutoStick al-
lows you to maximize engine braking, eliminate
undesirable upshifts and downshifts, and im-
prove overall vehicle performance. This system
can also provide you with more control during
passing, city driving, cold slippery conditions,
mountain driving, trailer towing, and many other
situations.
Operation
When the gear selector is in the DRIVE position,
the transmission will operate automatically,
shifting between the six available gears. To
engage AutoStick, simply tap the gear selector
to the right or left (+/-) while in the DRIVE
position. Tapping (-) to enter AutoStick mode will
downshift the transmission to the next lower
gear, while using (+) to enter AutoStick mode
will retain the current gear. When AutoStick is
active, the current transmission gear is dis-
played in the instrument cluster.
In AutoStick mode, the transmission will shift up
or down when the driver moves the gear selec-
tor to the right (+) or left (-), unless an engine
lugging or overspeed condition would result. It
176