2012 JEEP GRAND CHEROKEE charging

Interior Lights
Courtesy and dome lights are turned on when the front
doors are opened, when the dimmer control (rotating
wheel on the right side of the headlight switch) is rotated
to the its farthest upward position, or if equipped, when
the UNLOCK button is pressed on the Remote Keyless
Entry (RKE) transmitter. When a door is open and the
interior lights are on, rotating the dimmer control all the
way down, to the OFF detent, will cause all the interior
lights to go out. This is also known as the “Party” mode
because it allows the doors to stay open for extended
periods of time without discharging the vehicle’s battery.
The brightness of the instrument panel lighting can be
regulated by rotating the dimmer control up (brighter) or
down (dimmer). When the headlights are on you can
supplement the brightness of the odometer, trip odom-
eter, radio and overhead console by rotating the controlto its farthest position up until you hear a click. This
feature is termed the “Parade” mode and is useful when
headlights are required during the day.
Dimmer Control
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 185

•Oil Pressure Warning LightThis telltale indicates low engine oil pressure. 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 show how much oil is in the engine.
The engine oil level must be checked under the hood.
•Charging System Light This light shows the status of the electrical charg-
ing system. If the light stays on or comes on while
driving, turn off some of the vehicle’s non-essential
electrical devices or increase engine speed (if at idle). If
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”.
•Electronic Throttle Control (ETC) Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. The
light will come on when the ignition is first
turned ON and remain on briefly as a bulb
check. If the light does not come on during starting, have
the system checked by an authorized dealer.
If a problem is detected, the light will come on while the
engine is running. Cycle the ignition key when the
vehicle has completely stopped and the shift lever is
placed in the PARK position. The light should turn off.
If the light remains lit with the engine running, your
vehicle will usually be drivable. However, see an autho-
rized dealer for service as soon as possible. If the light is
flashing when the engine is running, immediate service is
308 UNDERSTANDING YOUR INSTRUMENT PANEL

Connecting The iPodOr External USB Device
Use the connection cable to connect an iPod or external
USB device to the vehicle’s USB/AUX connector port
which is located in the center console or glove compart-
ment. NOTE:
The center console will have a position where
the iPod or consumer electronic audio device cable can
be routed through without damaging the cable when
closing the lid. A factory cut out space for the cable to be
routed may be located in the base of the center console on
either the front or side. This allows routing of the cable
without damaging it while closing the lid. If a cut out is
not available in the center console base, route the cable
away from the lid latch and in a place that will allow the
lid to close without damaging the cable.
Once the audio device is connected and synchronized to
the vehicle’s iPod/USB/MP3 control system (iPod or
external USB device may take a few minutes to connect),
the audio device starts charging and is ready for use by
pressing radio switches, as described below.
NOTE: If the audio device battery is completely dis-
charged, it may not communicate with the iPod/USB/
MP3 control system until a minimum charge is attained.
Center Console USB/AUX Connector Port
354 UNDERSTANDING YOUR INSTRUMENT PANEL

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
remote 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 the remote negative (-)post of the vehicle with
the discharged battery.
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
remote negative (-)post of the discharged vehicle.
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.
562 WHAT TO DO IN EMERGENCIES

9. Disconnect the positive(+)end of the jumper cable
from the remote positive (+)post of the discharged
vehicle.
10. Reinstall the protective cover over the remote posi-
tive (+)battery 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.
FREEING A STUCK VEHICLE
If the vehicle becomes stuck in snow, sand or mud, it can
often be moved by a rocking motion. Move the shift lever
rhythmically between DRIVE and REVERSE while ap-
plying slight pressure to the accelerator. In general, the
least amount of accelerator pedal pressure to maintain
the rocking motion without spinning the wheels or racing
the engine is most effective.
CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the shift lever in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.6
WHAT TO DO IN EMERGENCIES 563