2008 JEEP PATRIOT power steering

Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear or uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread. Inspect tread and sidewall for cuts or
cracks. Check wheel nuts for tightness and tires (includ-
ing 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.
Fluid Leaks
Check the area under the vehicle after overnight parking
for fuel, engine coolant, oil or other fluid leaks. Also, if
gasoline fumes are detected or fuel, power steering fluid,
transmission fluid or brake fluid leaks are suspected, the
cause should be located and corrected immediately.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 71
2

Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and engine
power is reduced to provide enhanced acceleration and
stability. A feature of the TCS system functions similar to
a limited slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is
spinning faster than the other, the system will apply the
brake of the spinning wheel. This will allow more engine
torque to be applied to the wheel that is not spinning.
This feature remains active even if TCS and ESP are in
either the “Partial Off” or “Full Off” modes. Refer to
“Electronic Stability Program (ESP)” in this Section of this
manual.
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 vehicles speed
are sufficient to potentially cause wheel lift, it 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 can not
prevent wheel lift due to other factors such as road
conditions, leaving the roadway or striking objects or
other vehicles.
136 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

HDC has the capability to sense terrain and will only
activate when the vehicle is descending a hill. It will not
activate on level ground. If desired, HDC can be fully
deactivated by putting the vehicle into ESP “Full Off”
mode. This is done by pressing and holding the ESP OFF
button for five seconds. Refer to “Electronic Stability
Program (ESP)” in this section of the manual.
HDC operation can be overridden with brake application
to slow the vehicle down below the HDC control speed.
Conversely, if more speed is desired during HDC control,
the accelerator pedal will increase vehicle speed like
normal. When either the brake or the accelerator is
released, HDC will control the vehicle back to the origi-
nal set speed.
HDC is only intended for low speed off-road driving. At
vehicle speeds above 31 mph (50 km/h) HDC will no
longer function. If the HDC indicator light begins to flashthis indicates that the brakes are getting too hot and the
vehicle should be stopped to allow the brakes to cool.
WARNING!
HDC is only intended to assist the driver in control-
ling vehicle speed when descending hills. The driver
must remain attentive to the driving conditions and
is responsible for maintaining a safe vehicle speed.
Electronic Stability Program (ESP)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESP cor-
rects for over-steering or under-steering of the vehicle by
applying the brake of the appropriate wheel to assist in
counteracting the over-steering or under-steering condi-
tion. Engine power may also be reduced to help the
vehicle maintain the desired path. ESP uses sensors in the
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

REAR WINDOW FEATURES
Rear Window Wiper/Washer
A switch on the right side of the steering column controls
operation of the rear wiper/washer function. Rotating
the center of the switch forward to the ON position will
activate the wiper. The rear wiper operates in an inter-
mittent mode only. Rotating the center of the switch all
the way forward will turn on the wash function. The
wash pump will continue to operate as long as the button
is pressed. 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
162 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

TWO TYPES OF SIGNALS
There are two basic types of radio signals: AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary; and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio.
NOTE:The radio, steering wheel radio controls (if
equipped), and six-disc CD/DVD changer (if equipped)will remain active for up to 10 minutes after the ignition
switch has been turned OFF. Opening a vehicle front
door will cancel this feature.
ELECTRONIC DIGITAL CLOCK
The clock and radio each use the display panel built into
the radio. A digital readout shows the frequency and/or
time in hours and minutes (depending on your radio
model), whenever the ignition switch is in the ON or
ACC position.
When the ignition switch is in the OFF position, or when
the radio frequency is being displayed, timekeeping is
accurately maintained.
On the AM/FM/CD (6-disc) radio, the time button
alternates the location of the time and frequency on the
display. On the AM/FM/CD (single-disc) radio, only one
of the two, time or frequency, is displayed.
194 UNDERSTANDING YOUR INSTRUMENT PANEL

Brake System..........................278
▫Anti-Lock Brake System (ABS) —
If Equipped.........................279

Power Steering........................282

Tire Safety Information...................283
▫Tire Markings........................283
▫Tire Loading And Tire Pressure...........287

Tires — General Information...............291
▫Tire Pressure.........................291

Tire Chains...........................300

Tire Rotation Recommendations............300

Tire Pressure Monitoring System (TPMS) —
If Equipped...........................301
▫Base System — If Equipped..............304▫Premium System — If Equipped..........306
▫General Information...................310

Snow Tires...........................310

Fuel Requirements......................311
▫Gasoline Engines.....................311
▫Reformulated Gasoline.................311
▫Gasoline/Oxygenate Blends..............312
▫MMT In Gasoline.....................312
▫Materials Added To Fuel................313
▫Fuel System Cautions..................313
▫Carbon Monoxide Warnings..............314

Adding Fuel..........................314
▫Fuel Filler Cap (Gas Cap)...............314
STARTING AND OPERATING 237
5

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
Never leave children alone in a vehicle. Leaving
unattended children in a vehicle is dangerous for a
number of reasons. A child or others could be seri-
ously or fatally injured. Don’t leave the key in the
ignition. A child could operate power windows,
other controls, or move the vehicle.
Manual Transmission
Before starting the engine fully apply the parking brake,
press the clutch pedal to the floor, and place the shift
lever in NEUTRAL.NOTE:The engine will not start unless the clutch pedal
is pressed to the floor.
NOTE:If the key won’t turn and the steering wheel is
locked, rotate the wheel in either direction to relieve
pressure on the locking mechanism and then turn the
key.
Automatic Transmission
The shift lever must be in the PARK or NEUTRAL
position before you can start the engine. Apply the brakes
before shifting to any driving gear.
NOTE:You must press the brake pedal before shifting
out of PARK.
STARTING AND OPERATING 239
5

When To Use Low (L Off-Road) with the 4WD
Lock Lever Engaged
When driving off-road, shift into low (L Off-Road) and
activate the 4WD LOCK. This will provide additional
traction and activates the numerous off-road features to
improve handling and control on slippery or difficult
terrain. Due to the sustained lower gearing, low (L
Off-Road) with 4WD Lock engaged will allow the engine
to operate in a higher power range. This will allow you to
cross over obstacles and descend hills, with improved
control and less effort.
Simultaneous Brake And Throttle Operation
Many off-road driving conditions require the simulta-
neous use of the brake and throttle (two-footed driving).
When climbing rocks, logs, or other stepped objects,
using light brake pressure with light throttle will keep the
vehicle from jerking or lurching. This technique is also
used when you need to stop and restart a vehicle on a
steep incline.
Driving in Snow, Mud and Sand
There is a drastic reduction in traction when driving in
snow, mud or sand. The vehicle will be less responsive to
steering, acceleration and braking inputs. Therefore you
should accelerate slowly, leave greater stopping distances
and avoid abrupt vehicle maneuvers. You want to keep a
slow constant steady pace. The key is to maintain the
vehicle’s momentum.
•Snow– In heavy snow or for additional control and
traction at slower speeds, activate the 4WD LOCK and
shift the transmission to low (L Off-Road) if necessary.
Don’t shift to a lower gear than necessary to maintain
headway. Over-revving the engine can spin the wheels
and traction will be lost. If you start to slow to a stop,
try turning your steering wheel no more than a 1/4
turn quickly back and forth, while still applying
throttle. This will allow the tires to get a freshbite
and help maintain your momentum.
260 STARTING AND OPERATING