2012 JEEP LIBERTY jump start

the charging system light remains on, it means that the
vehicle is experiencing a problem with the charging
system. Obtain SERVICE IMMEDIATELY. See an autho-
rized dealer.
If jump starting is required, refer to “Jump Starting
Procedures” in “What To Do In Emergencies”.
13. Oil Pressure Warning LightThis light indicates low engine oil pressure. The
light should turn on momentarily when the engine
is started. If the light turns on while driving, stop the
vehicle and shut off the engine as soon as possible. A
chime will sound for four minutes when this light turns
on.
Do not operate the vehicle until the cause is corrected.
This light does not indicate how much oil is in the engine.
The engine oil level must be checked under the hood. 14. Anti-Lock Brake (ABS) Light
This light monitors the Anti-Lock Brake System
(ABS). The light will turn on when the ignition
switch is turned to the ON/RUN position and
may stay on for as long as four seconds.
If the ABS light remains on or turns 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 system will continue to operate
normally if the BRAKE warning light is not on.
If the ABS light is on, the brake system should be serviced
as soon as possible to restore the benefits of Anti-Lock
brakes. If the ABS light does not turn on when the
ignition switch is turned to the ON/RUN position, have
the light inspected by an authorized dealer.
15. Tachometer
This gauge measures engine revolutions-per-minute
(RPM x 1000). When the engine RPM are kept within the
4
UNDERSTANDING YOUR INSTRUMENT PANEL 229

Turn the ignition switch to the START position and
release when the engine starts. If the engine fails to start
within 10 seconds, turn the ignition switch to the LOCK
position, wait 10 to 15 seconds, then repeat the “Normal
Starting” procedure.
Tip Start Feature
Turn the ignition switch to START position and release it
as soon as the starter engages. The starter motor will
continue to run, but will automatically disengage itself
when the engine is running. If the engine fails to start, the
starter will disengage automatically in 10 seconds. If this
occurs, turn the ignition switch to the LOCK position,
wait 10 to 15 seconds, then repeat the “Normal Starting”
procedure.
Extreme Cold Weather (below –20°F or –29°C)
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater (avail-
able from your authorized dealer) is recommended.
If Engine Fails To Start
WARNING!
•Never pour fuel or other flammable liquids into
the throttle body air inlet opening in an attempt to
start the vehicle. This could result in a flash fire
causing serious personal injury.
•Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle. If the vehicle has a discharged battery,
booster cables may be used to obtain a start from a
booster battery or the battery in another vehicle.
This type of start can be dangerous if done improp-
erly. Refer to “Jump Starting” in “What To Do In
Emergencies” for further information.
320 STARTING AND OPERATING

WHAT TO DO IN EMERGENCIES
CONTENTS
Hazard Warning Flashers ................ 434
 If Your Engine Overheats ................ 434
 Jacking And Tire Changing ............... 435
▫ Jack Location ....................... 436
▫ Spare Tire Stowage ................... 436
▫ Spare Tire Removal ................... 437
▫ Preparations For Jacking ............... 438
▫ Jacking Instructions ................... 439
▫ Road Tire Installation ................. 443 
Jump-Starting Procedures ................ 444
▫ Preparations For Jump-Start ............. 444
▫ Jump-Starting Procedure ............... 446
 Freeing A Stuck Vehicle ................. 448
 Shift Lever Override ................... 449
 Towing A Disabled Vehicle ............... 450
▫ Towing Without The Ignition Key Fob ..... 452
▫ Two-Wheel Drive Models .............. 452
▫ Four-Wheel Drive Models .............. 454
6

JUMP-STARTING PROCEDURES
If your vehicle has a discharged battery it can be jump-
started using a set of jumper cables and a battery in
another vehicle or by using a portable battery booster
pack. Jump-starting can be dangerous if done improperly
so please follow the procedures in this section carefully.
NOTE:When using a portable battery booster pack
follow the manufacturer ’s operating instructions and
precautions.
CAUTION!
Do not use a portable battery booster pack or any
other booster source with a system voltage greater
than 12 Volts or damage to the battery, starter motor,
alternator or electrical system may occur.
WARNING!
Do not attempt jump-starting if the battery is frozen.
It could rupture or explode and cause personal injury.
Preparations For Jump-Start
The battery in your vehicle is located in the front of the
engine compartment, behind the left headlight assembly.
NOTE: The positive battery post is covered with a
protective cap. Lift up on the cap to gain access to the
positive battery post.
444 WHAT TO DO IN EMERGENCIES

3. If using another vehicle to jump-start the battery, park
the vehicle within the jumper cables reach, set the
parking brake and make sure the ignition is OFF.
WARNING!
Do not allow vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
Jump-Starting Procedure
WARNING!
Failure to follow this procedure could result in per-
sonal injury or property damage due to battery ex-
plosion.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster vehicle
or the discharged vehicle.
1. Connect the positive (+)end of the jumper cable to the
positive (+)post of the discharged vehicle.
2. Connect the opposite end of the positive (+)jumper
cable to the positive (+)post of the booster battery.
3. Connect the negative end (-)of the jumper cable to the
negative (-)post of the booster battery.
4. Connect the opposite end of the negative (-)jumper
cable to a good engine ground (exposed metal part of the
discharged vehicle’s engine) away from the battery and
the fuel injection system.
446 WHAT TO DO IN EMERGENCIES

WARNING!
Do not connect the cable to the negative post (-) of the
discharged battery. The resulting electrical spark
could cause the battery to explode and could result in
personal injury.
5. Start the engine in the vehicle that has the booster
battery, let the engine idle a few minutes, and then start
the engine in the vehicle with the discharged battery.
Once the engine is started, remove the jumper cables in
the reverse sequence:
6. Disconnect the negative (-)jumper cable from the
engine ground of the vehicle with the discharged battery.
7. Disconnect the negative end (-)of the jumper cable
from the negative (-)post of the booster battery. 8. Disconnect the opposite end of the positive
(+)jumper
cable from the positive (+)post of the booster battery.
9. Disconnect the positive (+)end of the jumper cable
from the positive (+)post of the discharged vehicle.
If frequent jump-starting is required to start your vehicle
you should have the battery and charging system in-
spected at your authorized dealer.
CAUTION!
Accessories that can be plugged into the vehicle
power outlets draw power from the vehicle’s battery,
even when not in use (i.e., cellular phones, etc.).
Eventually, if plugged in long enough, the vehicle’s
battery will discharge sufficiently to degrade battery
life and/or prevent the engine from starting.6
WHAT TO DO IN EMERGENCIES 447

Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic main-
tenance required.
WARNING!
•Battery fluid is a corrosive acid solution and can
burn or even blind you. Do not allow battery fluid
to contact your eyes, skin, or clothing. Do not lean
over a battery when attaching clamps. If acid
splashes in eyes or on skin, flush the area imme-
diately with large amounts of water. Refer to
“Jump-Starting Procedures” in “What To Do In
Emergencies” for further information.(Continued)
WARNING! (Continued)
•Battery gas is flammable and explosive. Keep
flame or sparks away from the battery. Do not use
a booster battery or any other booster source with
an output greater than 12 Volts. Do not allow cable
clamps to touch each other.
•Battery posts, terminals, and related accessories
contain lead and lead compounds. Wash hands
after handling.
466 MAINTAINING YOUR VEHICLE

DisposalAntifreeze (Engine Coolant) ............. 477
Engine Oil ......................... 464
Door Locks ............................. 30
Door Locks, Automatic .................... 32
Door Opener, Garage ..................... 184
Driving ............................ 344,345
Off-Pavement ....................... 345
Off-Road .......................... 345
On Hills ........................... 345
Through Flowing, Rising, or Shallow
Standing Water ...................... 345
When to Use Low Range ............... 345
Electric Remote Mirrors ................... 101
Electrical Outlet, Auxiliary (Power Outlet) ...... 202
Electrical Power Outlets ................... 202
Electronic Brake Control System ............. 355
Anti-Lock Brake System ................ 356 Brake Assist System
................... 357
Electronic Roll Mitigation ............... 358
Traction Control System ................ 356
Electronic Roll Mitigation (ERM) ............. 358
Electronic Speed Control (Cruise Control) ...... 173
Electronic Stability Control (ESC) ............. 363
Electronic Vehicle Information Center (EVIC) .... 239
Emergency, In Case of Hazard Warning Flasher ............... 434
Jacking ............................ 435
Jump Starting ....................... 444
Overheating ........................ 434
Emission Control System Maintenance ......... 459
Engine ............................... 457
Air Cleaner ......................... 465
Block Heater ........................ 321
Break-In Recommendations .............. 88
Checking Oil Level ................... 462
Compartment ....................... 457
538 INDEX