snow chains JEEP WRANGLER 2021 Owner handbook (in English)

WARNING!
ESC also cannot prevent accidents re-
sulting from loss of vehicle control due
to inappropriate driver input for the con-
ditions. Only a safe, attentive, and skill-
ful driver can prevent accidents. The
capabilities of an ESC equipped vehicle
must never be exploited in a reckless or
dangerous manner which could jeopar-
dize the user’s safety or the safety of
others.
• Vehicle modifications, or failure to prop-
erly maintain your vehicle, may change
the handling characteristics of your ve-
hicle, and may negatively affect the per-
formance of the ESC system. Changes to
the steering system, suspension, brak-
ing system, tire type and size or wheel
size may adversely affect ESC perfor-
mance. Improperly inflated and un-
evenly worn tires may also degrade ESC
performance. Any vehicle modification
or poor vehicle maintenance that re-
duces the effectiveness of the ESC sys-
tem can increase the risk of loss of
WARNING!
vehicle control, vehicle rollover, per-
sonal injury and death.
The ESC system has three available operating
modes in 4H range. The system has one
operating mode in 4L range. Two-wheel drive
vehicles and four-wheel drive vehicles in 2H
range have two operating modes.
4H Range (4WD Models)
ESC On
This is the normal operating mode for ESC in
4H range.
ESC Partial Off
This mode is entered by momentarily pushing
the ESC OFF switch. When in "ESC 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.
This mode is intended to be used if the
vehicle is in deep snow, sand, or gravel con-
ditions and more wheel spin than ESC would
normally allow is required to gain traction. Toturn 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 "ESC Partial Off" mode by
pushing the ESC OFF switch. Once the situ-
ation requiring ESC to be switched to the
"ESC 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 "ESC Partial Off" mode, the TCS
functionality of ESC, (except for the lim-
ited slip feature described in the TCS
section), has been disabled and the
“ESC Off Indicator Light” will be illumi-
nated. When in "ESC Partial Off" mode,
the engine power reduction feature of
TCS is disabled, and the enhanced ve-
SAFETY
72

40 mph (64 km/h). For speeds at or exceed-
ing approximately 40 mph (64 km/h) the ESC
goes into "ESC Partial Off" When the vehicle
speed drops below 35 mph (56 km/h), the
ESC system goes back to "ESC Full Off". The
ESC is in "ESC Full Off" at low vehicle speeds
in 4L range so that it will not interfere with
off-road driving, but the ESC function returns
to provide the stability feature at speeds
above 40 mph (64 km/h). The “ESC OFF
Indicator Light” will always be illuminated in
4L range when ESC is in "ESC Full Off" or
"ESC Partial Off".
NOTE:
The “ESC OFF” message will display and an
audible chime will sound when the gear se-
lector is placed in 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!
With the ESC in "ESC Full Off" mode, the
engine torque reduction and stability fea-
tures offered by ESC and ERM are dis-
WARNING!
abled. In an emergency evasive maneuver,
the ESC and ERM systems will not engage
to assist in maintaining stability. The "ESC
Full Off" mode is intended for off-road use
only.
2H Range (4WD Models) Or 2WD Models
ESC On
This is the normal operating mode for ESC in
2H range and on 2WD vehicles.
ESC Partial Off
When in "ESC 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.
This mode is intended to be used if the
vehicle is in deep snow, sand, or gravel con-
ditions 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 "ESC Partial Off" mode by
pushing the "ESC Full Off" switch. Once the
situation requiring ESC to be switched to the
"ESC Partial Off" mode is overcome, turn ESC
back on by momentarily pushing the "ESC
Full Off" switch. This may be done while the
vehicle is in motion.
The ESC will restore to normal ESC On mode
after each key on.
WARNING!
• When in “Partial Off” mode, the TCS
functionality of ESC, (except for the lim-
ited slip feature described in the TCS
section), has been disabled and the
“ESC Off Indicator Light” will be illumi-
nated. When in “Partial Off” mode, the
engine power reduction feature of TCS is
disabled, and the enhanced vehicle sta-
bility offered by the ESC system is re-
duced.
SAFETY
74

2. Installing some form of aftermarket win-
dow tinting that affects radio wave
signals.
3. Lots of 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.
Vehicles not equipped with instrument clus-
ter display will inform the driver which tire(s)
are low but not provide actual tire pressure.
The low tire ISO telltale will illuminate along
with “LoTIrE” message displayed in the ODO
and then it will scroll to which tire location is
lower than the Placard Value.
Tire location will be displayed as follows:
LF =LeftFront
rF =rightFront
Lr =Leftrear
rr =rightrearNOTE:
• If your vehicle is equipped with a matching
full-size spare wheel and tire assembly, it
has a tire pressure monitoring sensor, and
can be monitored by the Tire Pressure
Monitoring System (TPMS) when swapped
with a low pressure road tire. In the event
that the matching full-size spare tire is
swapped with a low pressure road tire, the
next ignition key cycle will still show the
“Tire Pressure Monitoring Telltale Light” to
be ON, and a chime to sound. Driving the
vehicle for up to 10 minutes above 15 mph
(24 km/h) will turn OFF the “Tire Pressure
Monitoring Telltale Light” as long as none
of the road tires are below the low pressure
warning threshold.
• If your vehicle is not equipped with a
matching full-size spare wheel and tire as-
sembly, it does not have a tire pressure
monitoring sensor in the spare tire. The
TPMS will not be able to monitor the tire
pressure. If you install the 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 MonitoringTelltale Light” will turn ON. 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. 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. Once you repair or replace
the original road tire, and reinstall it on the
vehicle in place of the 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 information.
Premium System — If Equipped
The Tire Pressure Monitor System (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.
SAFETY
80

will no longer be highlighted or shown in a
different color and the Tire Pressure Monitor-
ing Telltale Light will extinguish once the
updated tire pressure(s) have been received.
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 plac-
ard 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) to
receive this information.
Service TPM System Warning
The “Tire Pressure Monitoring Telltale Light”
will flash on and off for 75 seconds, and
remain on solid when a system fault is de-
tected. The system fault will also sound a
chime. The instrument cluster will display a
“SERVICE TPM SYSTEM” message for a
minimum of five seconds. This message is
then followed by a graphic display, with “- -“
in place of the pressure value(s), indicating
which Tire Pressure Monitoring Sensor(s) is
not being received.If the ignition switch is cycled, this sequence
will repeat, providing the system fault still
exists. If the system fault no longer exists, the
“Tire Pressure Monitoring Telltale Light” will
no longer flash, the "SERVICE TPM SYSTEM"
message will not be present, and a pressure
value will be displayed instead of dashes. A
system fault can occur by any of the follow-
ing:
• Jamming due to electronic devices or driv-
ing next to facilities emitting the same
Radio Frequencies as the TPM sensors.
• Installing some form of aftermarket window
tinting that affects radio wave signals.
• Lots of snow or ice around the wheels or
wheel housings.
• Using tire chains on the vehicle.
• Using wheels/tires not equipped with TPM
sensors.
NOTE:
• If your vehicle is equipped with a matching
full-size spare wheel and tire assembly, it
has a tire pressure monitoring sensor, and
can be monitored by the Tire Pressure
Monitoring System (TPMS) when swappedwith a low pressure road tire. In the event
that the matching full-size spare tire is
swapped with a low pressure road tire, the
next ignition switch cycle will still show the
“Tire Pressure Monitoring Telltale Light” to
be ON, a chime to sound, a “LOW TIRE”
message to appear in the instrument clus-
ter, and the graphic display will still show
the low tire pressure value highlighted or
shown in a different color. Driving the ve-
hicle for up to 10 minutes above 15 mph
(24 km/h) will turn OFF the “Tire Pressure
Monitoring Telltale Light” as long as none
of road tires are below the low pressure
warning threshold.
• If your vehicle is not equipped with a
matching full-size spare wheel and tire as-
sembly, it does not have a tire pressure
monitoring sensor in the spare tire. The
TPMS will not be able to monitor the tire
pressure. If you install the spare tire in
place of a road tire that has a pressure
below the low-pressure warning limit, upon
the next ignition switch cycle, the “Tire
Pressure Monitoring Telltale Light” will re-
main ON, a chime will sound, and the
instrument cluster will still display a high-
lighted or different color pressure value in
SAFETY
82

When cleaning extremely dirty wheels includ-
ing excessive brake dust, care must be taken
in the selection of tire and wheel cleaning
chemicals and equipment to prevent damage
to the wheels. Mopar Wheel Treatment or
Mopar Chrome Cleaner or their equivalent is
recommended or select a non-abrasive, non-
acidic cleaner for aluminum or chrome
wheels.
CAUTION!
Do not use scouring pads, steel wool, a
bristle brush, metal polishes or oven
cleaner. These products may damage the
wheel's protective finish. Such damage is
not covered by the New Vehicle Limited
Warranty. Only car wash soap, Mopar
Wheel Cleaner or equivalent is recom-
mended.NOTE:
If you intend parking or storing your vehicle
for an extended period after cleaning the
wheels with wheel cleaner, drive your vehicle
and apply the brakes to remove the water
droplets from the brake components. This
activity will remove the red rust on the brake
rotors and prevent vehicle vibration when
braking.
Dark Vapor Chrome, Black Satin Chrome, or Low
Gloss Clear Coat WheelsCAUTION!
If your vehicle is equipped with these
specialty wheels, DO NOT USE wheel
cleaners, abrasives, or polishing com-
pounds. They will permanently damage
this finish and such damage is not covered
by the New Vehicle Limited Warranty.
HAND WASH ONLY USING MILD SOAP
AND WATER WITH A SOFT CLOTH. Used
on a regular basis; this is all that is re-
quired to maintain this finish.
Tire Chains (Traction Devices)
Use of traction devices require sufficient tire-
to-body clearance. Follow these recommen-
dations to guard against damage.
• Traction device must be of proper size for
the tire, as recommended by the traction
device manufacturer.
• Install on Rear Tires Only.
• A 235/65R17 tire with the use of a traction
device that meets the SAE type “Class S”
specification is recommended.
WARNING!
Using tires of different size and type
(M+S, Snow) between front and rear axles
can cause unpredictable handling. You
could lose control and have a collision.
CAUTION!
To avoid damage to your vehicle or tires,
observe the following precautions:
• Because of restricted traction device
clearance between tires and other sus-
SERVICING AND MAINTENANCE
200

Rear Folding.............21, 22
Removal..................25
Seatback Release............21
Tilting...................21
Vented...................21
Ventilated.................21
Security Alarm..............18, 61
Security System................18
Sentry Key (Immobilizer)..........16
Sentry Key Programming..........17
Sentry Key Replacement..........17
Service Assistance.............242
Shifting....................126
Automatic Transmission........126
Manual Transmission.........123
Transfer Case, Shifting Into Transfer
Case Neutral (N)............143
Transfer Case, Shifting Out Of Transfer
Case Neutral (N)............144
Shift Lever Override.............164
Shoulder Belts.................86
Signals, Turn.....29, 64, 114, 148, 149
Snow Chains (Tire Chains).........200
Snow Tires..................197
Spare Tire............154, 198, 199
Speed Control
Accel/Decel...............138Cancel..................138
Resume.................138
Speed Control (Cruise Control)......136
Starting.................14, 117
Automatic Transmission........117
Cold Weather..............117
Engine Fails To Start.........118
Manual Transmission.........117
Remote..................14
Starting And Operating...........117
Starting Procedures.............117
Steering.....................28
Tilt Column................28
Wheel, Tilt
.................28
Steering Wheel Audio Controls......232
Steering Wheel Mounted Sound System
Controls..................232
Storage, Vehicle............37, 201
Storing Your Vehicle............201
Stuck, Freeing................164
Supplemental Restraint System -
AirBag ...................93
Sway Bar Disconnect, Electronic.....133
Sway Control, Trailer.............76
Swing Gate, Rear...............51
System, Remote Starting..........14Temperature Control, Automatic (ATC) . .37
Tilt Steering Column.............28
Tip Start....................119
Tires...............114, 193, 198
Aging (Life Of Tires)..........196
Air Pressure...............193
Chains..................200
Changing.............154, 192
Compact Spare.............198
General Information.......193, 198
High Speed...............194
Inflation Pressures...........193
Jacking...........154, 156, 192
Life Of Tires...............196
Pressure Monitor System (TPMS) . . .77
Pressure Warning Light.........62
Radial..................194
Replacement..............196
Rotation.................201
Safety..................193
Snow Tires................197
Spare Tire.........154, 198, 199
Spinning.................195
Tread Wear Indicators.........195
Wheel Nut Torque...........208
To Open Hood.................51
INDEX
264