brake light JEEP GRAND CHEROKEE 2016 WK2 / 4.G SRT Owners Manual

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 objects
lodged in the tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks, and bulges.
Check the wheel nuts for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake lights and
exterior lights while you work the controls. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for proper 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 (if
equipped), or brake fluid leaks are suspected. The cause
should be located and corrected immediately.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 113

detects vehicle specific light and automatically switches
from high beams to low beams until the approaching
vehicle is out of view.
NOTE:
•The Automatic High Beam Headlamp Control can be
turned on or off using the Uconnect System. Refer to
“Uconnect Settings” in “Understanding Your Instru-
ment Panel” for further information.
• Broken, muddy, or obstructed headlights and taillights
of vehicles in the field of view will cause headlights to
remain on longer (closer to the vehicle). Also, dirt, film,
and other obstructions on the windshield or camera
lens will cause the system to function improperly.
• To opt out of the Advanced Auto High-Beam Sensitiv-
ity Control (default) and enter Reduced High-Beam Sensitivity Control (not recommended), toggle high-
beam lever 6 full on/off cycles within 10 seconds of
ignition ON. System will return to default setting upon
ignition off.
If the windshield or Automatic High Beam Headlamp
Control mirror is replaced, the mirror must be re-aimed
to ensure proper performance. See your local authorized
dealer.
Daytime Running Lights — If Equipped
The Daytime Running Lights (bright intensity) come on
whenever the engine is running, and the transmission is
not in the PARK position. The lights will remain on until
the ignition is switched to the OFF or ACC position or the
parking brake is engaged.
The headlight switch must be used for normal nighttime
driving.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 171

•When you use the SET -button to decelerate, if the
engine’s braking power does not slow the vehicle
sufficiently to reach the set speed, the brake system
will automatically slow the vehicle.
• The ACC system applies the brake down to a full stop
when following a target vehicle. If an ACC host vehicle
follows a target vehicle to a standstill, the host vehicle
will release the vehicle brakes two seconds after com-
ing to a full stop.
• The ACC system maintains set speed when driving up
hill and down hill. However, a slight speed change on
moderate hills is normal. In addition, downshifting
may occur while climbing uphill or descending down-
hill. This is normal operation and necessary to main-
tain set speed. When driving up hill and down hill, the
ACC system will cancel if the braking temperature
exceeds normal range (overheated).Setting The Following Distance In ACC
The specified following distance for ACC can be set by
varying the distance setting between four bars (longest),
three bars (long), two bars (medium) and one bar (short).
Using this distance setting and the vehicle speed, ACC
calculates and sets the distance to the vehicle ahead. This
distance setting displays in the DID.
200 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To increase the distance setting, push the Distance Setting
— Increase button and release. Each time the button is
pushed, the distance setting increases by one bar (longer).
To decrease the distance setting, push the Distance Set-
ting — Decrease button and release. Each time the button
is pushed, the distance setting decreases by one bar
(shorter).
If there is no vehicle ahead, the vehicle will maintain the
set speed. If a slower moving vehicle is detected in the
same lane, the DID displays the “Sensed Vehicle Indica-
tor” icon, and the system adjusts vehicle speed automati-
cally to maintain the distance setting, regardless of the set
speed.
The vehicle will then maintain the set distance until:
•The vehicle ahead accelerates to a speed above the set
speed. •
The vehicle ahead moves out of your lane or view of
the sensor.
• The distance setting is changed.
• The system disengages. (Refer to the information on
ACC Activation).
The maximum braking applied by ACC is limited; how-
ever, the driver can always apply the brakes manually, if
necessary.
NOTE: The brake lights will illuminate whenever the
ACC system applies the brakes.
A Proximity Warning will alert the driver if ACC predicts
that its maximum braking level is not sufficient to
maintain the set distance. If this occurs, a visual alert
“BRAKE” will flash in the DID and a chime will sound
while ACC continues to apply its maximum braking
capacity.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 203

Brake Warning Light
Red TelltaleLight What It Means
United States
Canada
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 reser-
voir.
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 that a problem with the Brake Booster has been detected by the Anti-Lock
Brake System (ABS) / Electronic Stability Control (ESC) system. In this case, the light will
remain on until the condition has been corrected. If the problem is related to the 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.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 295

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.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have failed.
It will take longer to stop the vehicle. You could have
a collision. Have the vehicle checked immediately.
Vehicles equipped with the Anti-Lock Brake System
(ABS) are also equipped with Electronic Brake Force Distribution (EBD). In the event of an EBD failure, the
Brake Warning Light will turn on along with the ABS
Light. Immediate repair to the ABS system is required.
Operation of the Brake Warning Light can be checked by
placing the ignition in the position ON/RUN position.
The light should illuminate for approximately two sec-
onds. The light should then turn off unless the parking
brake is applied or a brake fault is detected. If the light
does not illuminate, have the light inspected by an
authorized dealer.
The light also will turn on when the parking brake is
applied with the ignition is placed in the ON/RUN
position.
NOTE:
This light shows only that the parking brake is
applied. It does not show the degree of brake application.
296 UNDERSTANDING YOUR INSTRUMENT PANEL

Anti-Lock Brake (ABS) Indicator Light
Yellow TelltaleLight What It Means
Anti-Lock Brake (ABS) Indicator Light
This light monitors the Anti-Lock Brake System (ABS). The light will turn on when the igni-
tion is placed in 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, then the Anti-Lock portion of the
brake system is not functioning and 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 is placed in
the ON/RUN position, have the light inspected by an authorized dealer.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 311

reviewed from the “Messages” main menu item. Ex-
amples of this message type are “Right Front Turn Signal
Lamp Out” and “Low Tire Pressure.”
•Unstored Messages
This message type is displayed indefinitely or until the
condition that activated the message is cleared. Examples
of this message type are “Turn Signal On” (if a turn signal
is left on) and “Lights On” (if driver leaves the vehicle).
• Unstored Messages Until RUN
These messages deal primarily with the Remote Start
feature. This message type is displayed until the ignition
is in the RUN state. Examples of this message type are
“Remote Start Aborted - Door Ajar” and “Press Brake
Pedal and Push Button to Start.”
• Five Second Unstored Messages
When the appropriate conditions occur, this type of
message takes control of the main display area for five seconds and then returns to the previous screen. An
example of this message type is “Automatic High Beams
On.”
Engine Oil Life Reset
Oil Change Required
Your vehicle is equipped with an engine oil change
indicator system. The “Oil Change Required” message
will display in the DID for five seconds after a single
chime has sounded, to indicate the next scheduled oil
change interval. The engine oil change indicator system
is duty cycle based, which means the engine oil change
interval may fluctuate, dependent upon your personal
driving style.
Unless reset, this message will continue to display each
time you cycle the ignition to the ON/RUN position. To
turn off the message temporarily, push and release the
326 UNDERSTANDING YOUR INSTRUMENT PANEL

head unit. When the shift up indicator is shown on the
display, the PSI is advising the driver to engage a higher
gear.
NOTE:The PSI is configured and turned on or off in the
head unit “Shift Light: Set Up” page.
The PSI indicator in the cluster information display
remains illuminated until the driver changes gear, or the
driving conditions return to a situation where changing
gear is not required, corresponding to the configured
RPMs in the head unit.
NOTE: Refer to “Uconnect Settings” in “Understanding
Your Instrument Panel” for further information on en-
abling, disabling, and configuring the Performance Shift
Indicator.
DID Messages
Includes the following, but not limited to:
• Front Seatbelts Unbuckled •
Driver Seat Belt Unbuckled
• Passenger Seat Belt Unbuckled
• Traction Control Off
• Washer Fluid Low
• Oil Pressure Low
• Oil Change Due
• Fuel Low
• Service Anti-lock Brake System
• Service Electronic Throttle Control
• Service Power Steering
• Cruise Off
• Cruise Ready
• ACC Override
328 UNDERSTANDING YOUR INSTRUMENT PANEL

•Cruise Set To XXX MPH
•
Tire Pressure Screen With Low Tire(s) “Inflate Tire to XX”
• Service Tire Pressure System
• Speed Warning Set to XXX MPH
• Speed Warning Exceeded
• Parking Brake Engaged
• Brake Fluid Low
• Service Electronic Braking System
• Engine Temperature Hot
• Lights On
• Right Front Turn Signal Light Out
• Right Rear Turn Signal Light Out
• Left Front Turn Signal Light Out •
Left Rear Turn Signal Light Out
• Ignition or Accessory On
• Vehicle Not In Park
• Remote Start Active Push Start Button
• Remote Start Canceled Fuel Low
• Remote Start Canceled Too Cold
• Remote Start Canceled Door Open
• Remote Start Canceled Hood Open
• Remote Start Canceled Liftgate Open
• Remote Start Canceled Time Expired
• Remote Start Disabled Start To Reset
• Service Air Bag System
• Service Air Bag Warning Light
4
UNDERSTANDING YOUR INSTRUMENT PANEL 329