service indicator JEEP GRAND CHEROKEE 2017 WK2 / 4.G User Guide

Service Adaptive Cruise Control (ACC) System Indicator Light
Yellow TelltaleLight What It Means
Service Adaptive Cruise Control Indicator Light
This light will turn on when a ACC is not operating and needs service. For further information,
refer to “Adaptive Cruise Control (ACC) — If Equipped” in “Starting And Operating.”
4WD Low Indicator Light — If Equipped
Yellow Telltale
Light What It Means
4WD Low Indicator Light
This light alerts the driver that the vehicle is in the four-wheel drive LOW mode. The front and
rear driveshafts are mechanically locked together forcing the front and rear wheels to rotate at
the same speed. Low range provides a greater gear reduction ratio to provide increased torque at
the wheels.
Refer to “Four-Wheel Drive Operation — If Equipped” in “Starting And Operating” for further
information on four-wheel drive operation and proper use.
This light alerts the driver that the vehicle is in the
four-wheel drive LOW mode. The front and rear drive-
shafts are mechanically locked together forcing the front
and rear wheels to rotate at the same speed. Low range
provides a greater gear reduction ratio to provide increased
torque at the wheels. Refer to “Four-Wheel Drive Operation — If Equipped” in
“Starting And Operating” for further information on four-
wheel drive operation and proper use.
166 GETTING TO KNOW YOUR INSTRUMENT PANEL

LaneSense Indicator Light — If Equipped
Yellow TelltaleLight What It Means
LaneSense Indicator Light — If Equipped
The LaneSense is solid yellow when the system senses a lane drift situation.
The LaneSense is flashing yellow when the system senses the lane has been approached and is in
a lane departure situation.
Refer to “LaneSense — If Equipped
in “Starting And Operating” for further information.
LaneSense Failure Indicator Light — If Equipped
Yellow Telltale
Light What It Means
LaneSense Failure Indicator Light
This light will turn on when the LaneSense system is not operating and needs service. Please see
your authorized dealer.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 167

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated Onboard
Diagnostic system called OBD II. This system monitors the
performance of the emissions, engine, and automatic trans-
mission control systems. When these systems are operating
properly, your vehicle will provide excellent performance
and fuel economy, as well as engine emissions well within
current government regulations.
If any of these systems require service, the OBD II system
will turn on the Malfunction Indicator Light (MIL). It will
also store diagnostic codes and other information to assist
your service technician in making repairs. Although your
vehicle will usually be drivable and not need towing, see
your authorized dealer for service as soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability. The
vehicle must be serviced before any emissions tests
can be performed.
(Continued)
CAUTION! (Continued)
•If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Onboard Diagnostic System (OBD II) Cybersecurity
Your vehicle is required to have an Onboard Diagnostic
system (OBD II) and a connection port to allow access to
information related to the performance of your emissions
controls. Authorized service technicians may need to ac-
cess this information to assist with the diagnosis and
service of your vehicle and emissions system.
WARNING!
• ONLY an authorized service technician should con-
nect equipment to the OBD II connection port in
order to diagnose or service your vehicle.
• If unauthorized equipment is connected to the OBD
II connection port, such as a driver-behavior tracking
device, it may:
• Be possible that vehicle systems, including safety
related systems, could be impaired or a loss of
(Continued)
176 GETTING TO KNOW YOUR INSTRUMENT PANEL

WARNING!(Continued)
vehicle control could occur that may result in an
accident involving serious injury or death.
• Access, or allow others to access, information
stored in your vehicle systems, including personal
information.
For further information, refer to “Privacy Practices” and
“Uconnect CyberSecurity” in “All About Uconnect Access”
in your Owner ’s Manual Radio Supplement and “Cyber-
security” in “Multimedia”.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass an
inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration. For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not on
when the engine is running, and that the OBD II system is
ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not ready
for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which you
can use prior to going to the test station. To check if your
vehicle’s OBD II system is ready, you must do the follow-
ing:
1. Cycle the ignition switch to the ON position, but do not
crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the “Malfunction Indicator Light
(MIL)” symbol come on as part of a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
• The MIL will flash for about 10 seconds and then return
to being fully illuminated until you turn OFF the igni-
tion or start the engine. This means that your vehicle’s
OBD II system is not readyand you should notproceed
to the I/M station.
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 177

bag system is designed to be maintenance free, if any of the
following occurs, have an authorized dealer service the air
bag system immediately.
•The Air Bag Warning Light does not come on during the
four to eight seconds when the ignition switch is first in
the ON/RUN position.
• The Air Bag Warning Light remains on after the four to
eight-second interval.
• The Air Bag Warning Light comes on intermittently or
remains on while driving.
NOTE: If the speedometer, tachometer, or any engine
related gauges are not working, the Occupant Restraint
Controller (ORC) may also be disabled. In this condition
the air bags may not be ready to inflate for your protection.
Have an authorized dealer service the air bag system
immediately.
WARNING!
Ignoring the Air Bag Warning Light in your instrument
panel could mean you won’t have the air bag system to
protect you in a collision. If the light does not come on
(Continued)
WARNING! (Continued)
as a bulb check when the ignition is first turned on,
stays on after you start the vehicle, or if it comes on as
you drive, have an authorized dealer service the air bag
system immediately.
Redundant Air Bag Warning Light
If a fault with the Air Bag Warning Light is
detected, which could affect the Supplemental
Restraint System (“SRS”), the Redundant Air Bag
Warning Light will illuminate on the instrument
panel. The Redundant Air Bag Warning Light will stay on
until the fault is cleared. In addition, a single chime will
sound to alert you that the Redundant Air Bag Warning
Light has come on and a fault has been detected. If the
Redundant Air Bag Warning Light comes on intermittently
or remains on while driving have an authorized dealer
service the vehicle immediately.
For additional information regarding the Redundant Air
Bag Warning Light, refer to “Warning/Indicator Lights
And Messages” in “Getting to Know Your Instrument
Panel” section of this manual.5
SAFETY 227

SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will influence
when the “Oil Change Required” message is displayed.
Severe operating conditions can cause the change oil
message to illuminate as early as 3,500 miles (5,600 km)
since last reset. Have your vehicle serviced as soon as
possible, within the next 500 miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change.
NOTE:Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), twelve months or 350
hours of engine run time, whichever comes first. The 350
hours of engine run or idle time is generally only a concern
for fleet customers. Once A Month Or Before A Long Trip:
•
Check engine oil level.
• Check windshield washer fluid level.
• Check the tire inflation pressures and look for unusual
wear or damage.
• Check the fluid levels of the coolant reservoir, brake
master cylinder and fill as needed.
• Check function of all interior and exterior lights
8
SERVICING AND MAINTENANCE 441

These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes a 1/16 of an inch (1.6 mm). When the tread is
worn to the tread wear indicators, the tire should be
replaced. Refer to “Replacement Tires” in this section for
further information.
Life Of Tire
The service life of a tire is dependent upon varying factors
including, but not limited to:
•Driving style.
• Tire pressure - Improper cold tire inflation pressures can
cause uneven wear patterns to develop across the tire
tread. These abnormal wear patterns will reduce tread
life, resulting in the need for earlier tire replacement.
• Distance driven.
• Performance tires, tires with a speed rating of V or
higher, and Summer tires typically have a reduced tread
life. Rotation of these tires per the vehicle maintenance
schedule is highly recommended.
WARNING!
Tires and the spare tire should be replaced after six
years, regardless of the remaining tread. Failure to
follow this warning can result in sudden tire failure.
You could lose control and have a collision resulting in
serious injury or death.
Tire Tread
1—WornTire
2—NewTire
8
SERVICING AND MAINTENANCE 487

Chains, Tire............................. .494
Changing A Flat Tire ....................... .475
Check Engine Light (Malfunction Indicator Light). . . .177
Checking Your Vehicle For Safety ...............256
Checks, Safety ............................ .256
Child Restraint ........................... .238
Child Restraints Booster Seats ........................... .241
Child Restraints ........................ .238
Child Seat Installation .....................252
How To Stow An Unused ALR Seat Belt ........249
Infants And Child Restraints ................240
LATCH Positions ........................ .243
Lower Anchors And Tethers For Children .......243
Older Children And Child Restraints ...........240
Seating Positions ........................ .242
Child Safety Locks ..........................39
Clean Air Gasoline ........................ .507
Cleaning Wheels ............................... .492
Climate Control ............................80
Manual ................................80
Cold Weather Operation ..................... .266
Compact Disc (CD) Maintenance ................608
Compact Spare Tire ........................ .490Computer, Trip/Travel
...................... .148
Console, Overhead ..........................118
Contract, Service .......................... .612
Coolant Pressure Cap (Radiator Cap) .............469
Cooling System ........................... .467
Adding Coolant (Antifreeze) .................468
Coolant Capacity .........................511
Coolant Level .......................... .470
Disposal Of Used Coolant ..................470
Drain, Flush, And Refill ....................467
Inspection ......................... .467, 470
Points To Remember ..................... .470
Pressure Cap ........................... .469
Radiator
Cap.......................... .469
Selection Of Coolant (Antifreeze) .......467, 511, 512
Corrosion Protection ....................... .498
Cruise Control (Speed Control) .................299
Cruise Light ....................... .172, 173, 174
Cupholders .............................. .121
Customer Assistance ....................... .610
Daytime Running Lights ......................68
Dealer Service ............................ .449
Defroster, Windshield ....................... .257
Diagnostic System, Onboard ...................176
618 INDEX

Gasoline (Fuel)........................... .506
Gasoline, Reformulated ..................... .507
Gear Ranges ............................. .277
Glass Cleaning ........................... .502
Gross Axle Weight Rating .....................371
Gross Vehicle Weight Rating ...................370
GVWR ................................. .369
Hazard Warning Flasher ..................... .398
Headlights Cleaning .............................. .498
On With Wipers ..........................67
Passing ................................70
Washers ................................79
Headlight Washers ..........................79
Heated Mirrors .............................63
Heater, Engine Block ....................... .270
Hill Descent Control ....................... .190
Hill Descent Control Indicator .................190
Hill Start Assist ........................... .182
Hitches Trailer Towing .......................... .373
HomeLink (Garage Door Opener) ...............109
Hood Prop ................................99 Hood Release
..............................99
Inside Rearview Mirror ....................61, 398
Instrument Cluster ................153, 154, 167, 171
Instrument Cluster ...................... .134
Instrument Panel Lens Cleaning ................501
Interior Appearance Care .....................500
Intermittent Wipers (Delay Wipers) ...............75
Intervention Regeneration Strategy ..............142
Introduction ................................4
Inverter, Power ........................... .126
iPod Control ............................. .571
iPod/USB/MP3 Control ..................... .571
Bluetooth Streaming Audio .................571
Jacking Instructions ........................ .418
Jack Location ............................ .417
Jack Operation ........................ .418,
475
Jump Starting ............................ .425
Key Fob Arm The Alarm ..........................33
Disarm The Alarm ........................33
Programming Additional Key Fobs ..........24, 31
Key Fob Battery Service (Remote Keyless Entry) .....22
12
INDEX 621

LocksAuto Unlock .............................39
Child Protection ..........................39
Power Door .............................35
Lubrication, Body ......................... .459
Lug Nuts ............................... .505
Maintenance Free Battery .....................448
Maintenance Schedule ...................... .441
Malfunction Indicator Light (Check Engine) . . . .158, 177
Manual, Service ........................... .614
Marker Lights, Side ........................ .405
Memory Feature (Memory Seat) .................48
Memory Seat ..............................48
Memory Seats And Radio .....................48
Methanol ............................... .508
Mini-Trip Computer ........................ .148
Mirrors ..................................61
Electric Powered ..........................63
Electric Remote ...........................63
Exterior Folding ..........................62
Heated .................................63
Outside ................................62
Rearview ........................... .61, 398
Vanity .................................65 Modifications/Alterations, Vehicle
................7
Monitor, Tire Pressure System ..................206
MOPAR Parts ............................ .613
Multi-Function Control Lever ...................66
New Vehicle Break-In Period ..................270
Occupant Restraints ........................ .212
Octane Rating, Gasoline (Fuel) ..............506, 512
Oil, Engine ........................... .450, 512
Capacity ...............................511
Change Interval ........................ .450
Checking ............................. .448
Disposal .............................. .451
Filter ............................. .452, 512
Filter Disposal .......................... .451
Identification Logo ...................... .450
Materials Added To ...................... .451
Pressure Warning Light ....................153
Recommendation .....................450,

511
Synthetic ............................. .451
Viscosity ....................... .450, 451, 511
Oil Filter, Change ......................... .452
Oil Filter, Selection ......................... .452
Oil Pressure Light ......................... .153
12
INDEX 623