brake fluid JEEP GRAND CHEROKEE 2009 WK / 3.G Owners Manual

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.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 71
2

INSTRUMENT CLUSTER DESCRIPTION
1. Speedometer
Indicates vehicle speed.
2. Brake Warning Light
This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on, it may
indicate that the parking brake is applied, that
the brake fluid level is low, or that there is a problem with
the anti-lock brake system reservoir.
If the light remains on when the parking brake has been
disengaged, and the fluid level is at the full mark on the
master cylinder reservoir, it indicates a possible brake
hydraulic system malfunction or a problem with the
Brake Booster has been detected by the Anti-Lock Brake
System (ABS) / Electronic Stability Program (ESP) sys-
tem. In this case, the light will remain on until the
condition has been corrected. If the problem is related tothe brake booster, the ABS pump will run when applying
the brake and a brake pedal pulsation may be felt during
each stop.
The dual brake system provides a reserve braking capac-
ity in the event of a failure to a portion of the hydraulic
system. A leak in either half of the dual brake system is
indicated by the Brake Warning Light, which will turn on
when the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level condi-
tions. The vehicle should have service performed, and
the brake fluid level checked.
If brake failure is indicated, immediate repair is neces-
sary.
184 UNDERSTANDING YOUR INSTRUMENT PANEL

•LIFTGATE/HOOD OPEN (with graphic)
•HOOD/GLASS/DOOR OPEN (with graphic)
•HOOD/GLASS/DOORS OPEN (with graphic)
•HOOD/GATE/DOOR OPEN (with graphic)
•HOOD/GATE/DOORS OPEN (with graphic)
•LIFTGLASS/DOOR OPEN (with graphic)
•LIFTGLASS/DOORS OPEN (with graphic)
•LIFTGLASS/HOOD OPEN (with graphic)
•WASHER FLUID LOW (with graphic)
•COOLANT LOW (with graphic)
•OIL CHANGE REQUIRED
•OIL CHANGE RESET
•CHECK GAUGES
•AUTO HIGH BEAMS ON
•AUTO HIGH BEAMS OFF
•PARK ASSIST DISABLED
•SERVICE SUSPENSION
•SERVICE PARK ASSIST SYSTEM
•TRANSMISSION OVER TEMP
•CHECK SHIFT PROCEDURE
•SERVICE 4WD SYSTEM
•4WD SYSTEM IN NEUTRAL
•LOW BRAKE FLUID LEVEL
•WARNING! LIMIT SPEED
•CHECK GASCAP
•ESP OFF
196 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Quadra-Trac IIOperating
Instructions/Precautions — If Equipped.... 297
▫Shift Positions...................... 298
▫Shifting Procedures................... 298
▫Quadra-Drive IISystem — If Equipped.... 301
On-Road Driving Tips.................. 301
Off-Road Driving Tips.................. 302
▫When To Use 4WD Low Range — If
Equipped.......................... 302
▫Driving Through Water................ 302
▫Driving In Snow, Mud And Sand......... 303
▫Hill Climbing....................... 304
▫Traction Downhill.................... 305
▫After Driving Off-Road................ 305Power Steering....................... 306
▫Power Steering Fluid Check............. 307
Parking Brake........................ 308
Anti-Lock Brake System................. 309
Electronic Brake Control System........... 312
▫ABS (Anti-Lock Brake System)........... 312
▫TCS (Traction Control System)........... 313
▫BAS (Brake Assist System).............. 313
▫ERM (Electronic Roll Mitigation)......... 314
▫ESP (Electronic Stability Program)........ 315
▫TSC (Trailer Sway Control)............. 320
▫HSA (Hill Start Assist) (4WD Models With
NV245 Two–Speed Transfer Case Only)..... 320
276 STARTING AND OPERATING

drops below a calibrated speed, or during acceleration,
the clutch automatically and smoothly disengages. The
feature is operational in Overdrive and in DRIVE.
NOTE:
•The torque converter clutch will not engage until the
transmission fluid and engine coolant are warm [usu-
ally after 1 to 3 miles (1.6 to 4.8 km) of driving].
Because 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. Manually shifting (using the ERS shift
control) between 4 (direct gear) and 5/D (Overdrive
gear) positions will demonstrate that the transmission
is able to shift into and out of Overdrive. For vehicles
with 4.7L or 5.7L engines (which have two Overdrive
gears), the transmission may not shift into the top
Overdrive gear (normal 5th gear) until the transmis-
sion fluid and engine coolant are warm.
•If the vehicle has not been driven in several days, the
first few seconds of operation after shifting the trans-
mission into gear may seem sluggish. This is due to the
fluid partially draining from the torque converter into
the transmission. This condition is normal and will not
cause damage to the transmission. The torque con-
verter will refill within five seconds of shifting from
PARK into any other gear position.
Rocking The Vehicle
If the vehicle becomes stuck in snow, sand, or mud, it can
often be moved by a rocking motion. Move the shift lever
between DRIVE and REVERSE, while applying slight
pressure to the accelerator.
NOTE:The Electronic Stability Program (ESP) and
Traction Control (if equipped) should be turned OFF
before attempting to rock the vehicle. Refer to “Electronic
Brake Control System” in Section 3 of this manual.
STARTING AND OPERATING 295
5

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 steering
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.
306 STARTING AND OPERATING

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.
PARKING BRAKE
To set the parking brake, pull the lever up as firmly as
possible. When the parking brake is applied with the
ignition ON, the Brake Warning Light in the instrument
cluster will light. To release the parking brake, pull up
slightly, press the center button, then lower the lever
completely.NOTE:The Brake Warning Light indicates only that the
parking brake is applied. It does not indicate the degree
of brake application.
Be sure the parking brake is firmly set when parked, and
the shift lever is in the PARK position. When parking on
a hill, you should apply the parking brake before placing
Parking Brake
308 STARTING AND OPERATING

WARNING!
•Battery fluid is a corrosive acid solution; do not
allow battery fluid to contact eyes, skin or cloth-
ing. Do not lean over a battery when attaching
clamps or allow the clamps to touch each other. If
acid splashes in eyes or on skin, flush contami-
nated area immediately with large quantities of
water.
•A battery generates hydrogen gas which is flam-
mable and explosive. Keep flame or spark away
from the vent holes.
•Do not use a booster battery or any other booster
source that has a greater than 12-Volt system, i.e.
Do not use a 24-Volt power source.
1. Remove all metal jewelry such as watch bands or
bracelets, which might make an unintended electrical
contact.2. Park the booster vehicle within cable reach but with-
out letting the vehicles touch. Set the parking brake on
both vehicles, place the transmission in PARK, and turn
the ignition OFF.
3. Turn off the heater, radio, and all unnecessary electri-
cal loads.
4. Connect one end of a jumper cable to the positive
terminal of the booster battery. Connect the other end of
the same cable to the positive terminal of the discharged
battery.WARNING!
Do not permit vehicles to touch each other as this
could establish a ground connection, and personal
injury could result.
WHAT TO DO IN EMERGENCIES 399
6

▫Exhaust System..................... 422
▫Cooling System..................... 424
▫Brake System....................... 430
▫Front/Rear Axle Fluid................. 431
▫Transfer Case....................... 432
▫Automatic Transmission............... 433
▫Maintenance After Off-Road Driving...... 436
▫Appearance Care And Protection From
Corrosion.......................... 436
Fuses.............................. 441
▫Interior Fuses....................... 441
▫Underhood Fuses (Power Distribution
Center)........................... 444▫Underhood Fuses
(Integrated Power Module)............. 447
Vehicle Storage....................... 448
Replacement Bulbs.................... 449
Bulb Replacement..................... 450
▫High Intensity Discharge Headlights (HID)
— If Equipped...................... 450
▫Headlight.......................... 451
▫Front Turn Signal.................... 452
▫Front Fog Light..................... 453
▫Rear Tail, Stop, Turn Signal, And Backup
Lights............................ 454
▫Center High-Mounted Stop Light (CHMSL) . . 455
404 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT – 3.7L
1 — Engine Coolant Reservoir 6 — Battery
2 — Engine Oil Dipstick 7 — Washer Fluid Reservoir
3 — Power Distribution Center 8 — Engine Oil Fill
4 — Brake Fluid Reservoir 9 — Coolant Pressure Cap
5 — Integrated Power Module 10 — Air Cleaner Filter 406 MAINTAINING YOUR VEHICLE