2010 JEEP GRAND CHEROKEE power steering

Airbag Warning Light
The light should come on and remain on for six to eight
seconds as a bulb check when the ignition switch is first
turned ON. If the light is not lit during starting, see your
authorized dealer. If the light stays on, flickers, or comes
on while driving, have the system checked by an autho-
rized dealer.
Defroster
Check operation by selecting the defrost mode and place
the blower control on high speed. You should be able to
feel the air directed against the windshield. See your
authorized dealer for service if your defroster is
inoperable.
Periodic Safety Checks You Should Make Outside
the Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objectslodged in the tread. Inspect the tread and sidewall for
cuts and cracks. Check the wheel nuts for tightness.
Check the tires (including spare) for proper pressure.
Lights
Have someone observe the operation of exterior lights
while you work the controls. Check turn signal and high
beam indicator lights on the instrument panel.
Door Latches
Check for positive closing, latching, and locking.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
engine coolant, oil, or other fluid leaks. Also, if gasoline
fumes are detected or if fuel, power steering fluid, or
brake fluid leaks are suspected, the cause should be
located and corrected immediately.
74 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

REAR WINDOW FEATURES
Rear Window Wiper/Washer
The rear wiper/washer is controlled by a rotary switch
located on the control lever. The control lever is located
on the right side of the steering column.Rotate the switch upward to the “On” position to
activate the rear wiper.
NOTE: The rear wiper operates in an intermittent mode
only.
Rotate the switch upward to the “washer” position
to activate that rear washer. The washer pump will
continue to operate as long as the lever or ring is
engaged. Upon release, the wipers will cycle two times
before returning to the set position.
If the rear wiper is operating when the ignition is turned
OFF, the wiper will automatically return to the “park”
position if power accessory delay is active. Power acces-
sory delay can be cancelled by opening the door; if this
happens, the rear wiper will stop at its current position
and will not go to “park”.
Rear Wiper/Washer Control
148 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

▫Quadra-Trac II Operating Instructions/
Precautions – If Equipped .............. 253
▫ Shift Positions ...................... 255
▫ Shifting Procedures ................... 255
▫ Quadra-Drive II System – If Equipped .... 258
 On-Road Driving Tips .................. 258
 Off-Road Driving Tips .................. 259
▫ When To Use 4WD Low Range –
If Equipped ........................ 259
▫ Driving Through Water ................ 259
▫ Driving In Snow, Mud And Sand ......... 260
▫ Hill Climbing ....................... 261
▫ Traction Downhill .................... 262
▫ After Driving Off-Road ................ 262 
Power Steering ....................... 263
▫ Power Steering Fluid Check ............. 264
 Multi-Displacement System (MDS)
(If Equipped) – 5.7L Engine Only ........... 265
 Parking Brake ........................ 265
 Anti-Lock Brake System ................. 268
 Electronic Brake Control System ........... 270
▫ Anti-Lock Brake System (ABS) ........... 270
▫ Traction Control System (TCS) ........... 271
▫ Brake Assist System (BAS) .............. 271
▫ Electronic Roll Mitigation (ERM) ......... 272
▫ Electronic Stability Program (ESP) ........ 273
▫ Trailer Sway Control (TSC) ............. 278
236 STARTING AND OPERATING

WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent an accident. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
•If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE:
•Increased noise levels at the end of the steering wheel
travel are considered normal and do not indicate that
there is a problem with the power steering system.
•Upon initial start-up in cold weather, the power steer-
ing pump may make noise for a short amount of time.
This is due to the cold, thick fluid in the steering
system. This noise should be considered normal, and it
does not in any way damage the steering system.
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STARTING AND OPERATING 263

WARNING!
Continued operation with reduced power steering
assist could pose a safety risk to yourself and others.
Service should be obtained as soon as possible.
CAUTION!
Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
Power Steering Fluid Check
The power steering system requires the use of MOPAR
Hydraulic System Power Steering Fluid or equivalent,
which meets Chrysler Material Standard MS-10838.
CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power
steering components. Such damage is not covered by
the New Vehicle Limited Warranty.
WARNING!
Do not use Automatic Transmission Fluid (ATF), or
other types of power steering fluids, when servicing
the power steering system of this vehicle. Damage to
the power steering system can result from the use of
the wrong power steering fluid.
264 STARTING AND OPERATING

Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through an autho-
rized dealer.
WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do
not overfill. Use only manufacturers recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces.
MULTI-DISPLACEMENT SYSTEM (MDS) (IF
EQUIPPED) – 5.7L ENGINE ONLY
This feature offers improved fuel economy by shutting
off four of the engine’s eight cylinders during light load
and cruise conditions. The system is automatic with no
driver inputs or additional driving skills required.
NOTE: The MDS system may take some time to return
to full functionality after a battery disconnect.
PARKING BRAKE
Before leaving the vehicle, make sure that the parking
brake is fully applied and place the shift lever in the
PARK position.
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STARTING AND OPERATING 265

benefit of the system, you must applycontinuousbrak-
ing pressure during the stopping sequence (do not
“pump” the brakes). Do not reduce brake pedal pressure
unless braking is no longer desired. Once the brake pedal
is released, the BAS is deactivated.
WARNING!
The BAS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded by prevailing road conditions. The
BAS cannot prevent accidents, including those re-
sulting from excessive speed in turns, driving on
very slippery surfaces, or hydroplaning. Only a safe,
attentive, and skillful driver can prevent accidents.
The capabilities of a BAS-equipped vehicle must
never be exploited in a reckless or dangerous manner
which could jeopardize the user’s safety or the safety
of others.
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 steering wheel angle and vehicle speed
are sufficient to potentially cause wheel lift, it then
applies the brake of the appropriate wheel and may also
reduce engine power to lessen the chance that wheel lift
will occur. ERM will only intervene during very severe or
evasive driving maneuvers.
ERM can only reduce the chance of wheel lift occurring
during severe or evasive driving maneuvers. It cannot
prevent wheel lift due to other factors such as road
conditions, leaving the roadway or striking objects or
other vehicles.
272 STARTING AND OPERATING

NOTE:Anytime the ESP system is in the “Full Off”
mode, ERM is disabled. Refer to “Electronic Stability
Program (ESP)” for a complete explanation of the avail-
able ESP modes.
WARNING!
Many factors, such as vehicle loading, road condi-
tions and driving conditions, influence the chance
that wheel lift or rollover may occur. ERM cannot
prevent all wheel lift or rollovers, especially those
that involve leaving the roadway or striking objects
or other vehicles. Only a safe, attentive, and skillful
driver can prevent accidents. The capabilities of an
ERM-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.
Electronic Stability Program (ESP)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESP cor-
rects for oversteering or understeering of the vehicle by
applying the brake of the appropriate wheel to assist in
counteracting the oversteer or understeer condition. En-
gine power may also be reduced to help the vehicle
maintain the desired path.
ESP uses sensors in the vehicle to determine 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, ESP applies the brake of the appropri-
ate wheel to assist in counteracting the oversteer or
understeer condition.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
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