2016 JEEP WRANGLER engine overheat

NOTE:Push the ESC Off switch, to place the Electronic
Stability Control (ESC) system in Partial Offmode,
before rocking the vehicle. Refer to “Electronic Brake
Control” in “Starting And Operating” for further infor-
mation. Once the vehicle has been freed, push the ESC
Off switch again to restore ESC Onmode.
CAUTION!
•When “rocking” a stuck vehicle by shifting be-
tween DRIVE/2nd gear and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drive-
train damage may result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no trans-
mission shifting occurring).
WARNING!
Fast spinning tires can be dangerous. Forces gener-
ated by excessive wheel speeds may cause damage, or
even failure, of the axle and tires. A tire could
explode and injure someone. Do not spin your vehi-
cle’s wheels faster than 30 mph (48 km/h) or for
longer than 30 seconds continuously without stop-
ping when you are stuck and do not let anyone near
a spinning wheel, no matter what the speed.
EMERGENCY TOW HOOKS — IF EQUIPPED
If your vehicle is equipped with tow hooks, they are
mounted in the front and the rear.
NOTE: For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of
damage to the vehicle. Always use an appropriately rated
tow strap.
586 WHAT TO DO IN EMERGENCIES

CAUTION!
•The catalytic converter requires the use of un-
leaded fuel only. Leaded gasoline will destroy the
effectiveness of the catalyst as an emissions control
device and may seriously reduce engine perfor-
mance and cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition.
In the event of engine malfunction, particularly
involving engine misfire or other apparent loss of
performance, have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle. Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
NOTE:
Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune-up to manufacturer’s specifica-
tions, should be obtained immediately.
7
MAINTAINING YOUR VEHICLE 623

Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
recovery tank.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is
overheated. Do not loosen or remove the cap to cool
an overheated engine. Heat causes pressure to
build up in the cooling system. To prevent scalding
or injury, do not remove the pressure cap while the
system is hot or under pressure.
(Continued)
WARNING! (Continued)
•Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol-based
engine coolant in open containers or allow it to remain in
puddles on the ground. If ingested by a child or pet, seek
emergency assistance immediately. Clean up any ground
spills immediately.
628 MAINTAINING YOUR VEHICLE

Compartment Identification................595
Coolant (Antifreeze) .....................660
Cooling ............................. .624
Exhaust Gas Caution .................100, 538
Fails To Start ......................... .435
Flooded, Starting ...................... .435
Fuel Requirements ...................534, 659
Jump Starting ......................... .581
Oil .......................... .600, 659, 660
Oil Change Interval ..................... .353
Oil Filter ............................ .603
Oil Selection ...................... .601, 659
Oil Synthetic ......................... .602
Overheating .......................... .570
Starting .......................... .434, 435
Engine Oil Viscosity ...................... .602
Engine Oil Viscosity Chart ...................602
Enhanced Accident Response Feature ............71
Entry System, Illuminated ....................21 Ethanol
............................... .535
Event Data Recorder ........................74
Exhaust Gas Caution ...................100, 538
Exhaust System ...................... .100, 622
Exterior Lights .......................... .104
Fabric Care ............................. .644
Fabric Top ............................. .644
Filters Air Cleaner .......................... .603
Air Conditioning ....................427, 612
Engine Oil ........................ .603, 660
Engine Oil Disposal .....................602
Flashers Hazard Warning ....................... .570
Turn Signal .....................104, 657, 658
Flash-To-Pass ........................... .171
Flooded Engine Starting ....................435
Fluid, Brake ............................ .662
10
INDEX 687

Oil Change Indicator, Reset..................353
Oil, Engine ......................... .600, 660
Capacity ............................ .659
Change Interval .....................353, 600
Dipstick ............................. .600
Disposal ............................. .602
Filter ............................ .603, 660
Filter Disposal ........................ .602
Identification Logo ..................... .601
Materials Added To ..................... .602
Pressure Warning Light ...................317
Recommendation ....................601, 659
Synthetic ............................ .602
Viscosity ......................... .602, 659
Oil Filter, Change ........................ .603
Oil Filter, Selection ....................... .603
Oil Pressure Light ........................ .317
Onboard Diagnostic System ..................596
Operating Precautions ..................... .596Operator Manual (Owner’s Manual)
.............6
Outside Rearview Mirrors ...................112
Overdrive .............................. .451
Overdrive OFF Switch ..................... .451
Overheating, Engine ...................... .570
Owner’s Manual (Operator Manual) ..........6,678
Paint Care ............................. .638
Panic Alarm ..............................25
Parking Brake ........................... .478
Passing Light ........................... .171
Personal Settings ......................... .354
Pets ....................................98
Pets, Transporting ..........................98
Phone, Cellular ...........................115
Phone, Hands-Free (Uconnect) ................115
Placard, Tire And Loading Information ..........506
Power Brakes .............................. .480
10
INDEX 693