check engine light JEEP GRAND CHEROKEE 2016 WK2 / 4.G SRT User Guide

access 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 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 per-
sonal information. For further information, refer to “Privacy Practices — If
Equipped With Uconnect 8.4 Radio” and “Uconnect
CyberSecurity” in “All About Uconnect Access” in your
Owner ’s Manual Radio Supplement and “Cybersecurity”
in “Understanding Your Instrument Panel”.
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
7
MAINTAINING YOUR VEHICLE 611

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
following:
1. Cycle the ignition switch to the ON position, but donot 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 ignition or start the engine. This means that your
vehicle’s OBD II system is not readyand you should
not proceed to the I/M station.
• The MIL will not flash at all and will remain fully
illuminated until you place the ignition in the off
position or start the engine. This means that your
vehicle’s OBD II system is readyand you can proceed
to the I/M station.
If your OBD II system is not ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD II
system to update. A recheck with the above test routine
may then indicate that the system is now ready.
612 MAINTAINING YOUR VEHICLE

Installing The Rear Wiper
1. Lift the rear wiper arm pivot cap away from the glassto allow the rear wiper blade to be raised off of the
glass.
NOTE: The rear wiper arm cannot be fully raised off the
glass unless the wiper arm pivot cap is unsnapped first.
Attempting to fully raise the rear wiper arm without
unsnapping the wiper arm pivot cap may damage the
vehicle.
2. Lift the rear wiper arm fully off the glass.
3. Insert the wiper blade pivot pin into the opening on the end of the wiper arm. Grab the bottom end of the
wiper arm with one hand, and press the wiper blade
flush with the wiper arm until it snaps into place.
4. Lower the wiper blade onto the glass and snap the wiper arm pivot cap back into place.Adding Washer Fluid
This vehicle is equipped with a Driver Information Display
(DID), the DID will indicate when the washer fluid level is
low. When the sensor detects a low fluid level, the wind-
shield will light on the vehicle graphic outline and the
“WASHER FLUID LOW” message will be displayed.
The fluid reservoir for the windshield washers and the rear
window washer is shared. The fluid reservoir is located in
the engine compartment, be sure to check the fluid level at
regular intervals. Fill the reservoir with windshield washer
solvent only (not radiator antifreeze). When refilling the
washer fluid reservoir, take some washer fluid and apply it
to a cloth or towel and wipe clean the wiper blades, this
will help blade performance. To prevent freeze-up of your
windshield washer system in cold weather, select a solu-
tion or mixture that meets or exceeds the temperature
range of your climate. This rating information can be found
on most washer fluid containers.
636 MAINTAINING YOUR VEHICLE

Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Driver Informa-
tion Display (DID)” in “Understanding Your Instrument
Panel” for further information.
At Each Stop For Fuel
•Check the engine oil level. Refer to “Maintenance
Procedures/Engine Oil” in “Maintaining Your Ve-
hicle” for further information.
• Check the windshield washer solvent and add if
required.
Once A Month
• Check tire pressure and look for unusual wear or
damage. •
Inspect the battery, and clean and tighten the terminals
as required.
• Check the fluid levels of the coolant reservoir, engine
oil, brake master cylinder, and add as needed.
• Check all lights and other electrical items for correct
operation.
At Each Oil Change
• Change the engine oil filter.
• Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
8
MAINTENANCE SCHEDULES 681

Alarm (Security Alarm)............20, 297, 302, 322
Alarm System (Security Alarm) ................20
Alterations/Modifications, Vehicle ...............9
Antifreeze (Engine Coolant) ...............641, 675
Disposal ............................. .643
Anti-Lock Brake System (ABS) ................502
Anti-Lock Warning Light ....................311
Appearance Care ........................ .651
Arming System (Security Alarm) ...............20
Assist, Hill Start ......................... .504
Auto Down Power Windows ..................44
Automatic Door Locks ......................35
Automatic Headlights ..................... .170
Automatic High Beams .....................170
Automatic Temperature Control (ATC) .......425, 433
Automatic Transmission .................471, 651
Adding Fluid ......................... .651
Autostick ............................ .479
Fluid And Filter Changes ..................651 Fluid Change
......................... .651
Fluid Level Check ...................649, 650
Fluid Type ........................ .649, 677
Gear Ranges .......................... .473
Special Additives ...................... .650
Autostick .............................. .479
Auxiliary Electrical Outlet (Power Outlet) ........263
Auxiliary Power Outlet .....................263
Axle Fluid ............................. .677
Battery ............................ .299, 623
Charging System Light ...................299
Keyless Transmitter Replacement (RKE) ........26
Belts, Seat ...............................111
Blind Spot Monitoring ..................... .134
Body Mechanism Lubrication .................629
B-Pillar Location ......................... .528
Brake Assist System ...................... .504
Brake Control System, Electronic ..............501
10
INDEX 701

Brake Fluid......................... .646, 677
Brake System ........................ .500, 645
Anti-Lock (ABS) ....................... .500
Fluid Check .......................... .646
Master Cylinder ....................... .646
Parking ............................. .498
Warning Light ........................ .295
Brake/Transmission Interlock .................470
Braking ............................... .335
SRT ................................ .335
Braking Distance ......................... .335
SRT ................................ .335
Bulb Replacement ..................... .667, 669
Bulbs, Light .............................113
Camera, Rear ........................... .246
Capacities, Fluid ......................... .675
Caps, Filler Oil (Engine) ....................... .615, 617Radiator (Coolant Pressure)
................643
Carbon Monoxide Warning ...............110,559
Cargo Area Cover ........................ .276
Cargo Area Features ...................... .273
Cargo Compartment ...................... .273
Light ............................... .274
Cargo Light ............................ .274
Cargo Tie-Downs ........................ .277
Car Washes ............................ .652
Cellular Phone .......................... .424
Center High Mounted Stop Light ..............674
Certification Label ........................ .563
Chains, Tire ............................ .545
Chart, Tire Sizing ........................ .523
Check Engine Light (Malfunction Indicator Light) . .611
Checking Your Vehicle For Safety ..............109
Checks, Safety .......................... .109
Child Restraint ............................83
702 INDEX

Emergency, In Case OfFreeing Vehicle When Stuck ................600
Hazard Warning Flasher ..................582
Jump Starting ......................... .596
Emission Control System Maintenance ..........611
Engine ................................ .609
Air Cleaner .......................... .618
Checking Oil Level ..................... .614
Compartment ......................... .609
Coolant (Antifreeze) ..................639, 676
Cooling ............................. .639
Exhaust Gas Caution .................110,559
Fails To Start ......................... .466
Flooded, Starting ...................... .466
Fuel Requirements ...................555, 675
Jump Starting ......................... .596
Oil .......................... .614, 675, 676
Oil Change Interval ..................... .615
Oil Filler Cap ...................... .615, 617Oil Filter
............................ .617
Oil Selection ...................... .615, 675
Oil Synthetic ......................... .617
Overheating .......................... .582
Starting ............................. .463
Engine Oil Viscosity ....................615, 617
Enhanced Accident Response Feature ............79
Entry System, Illuminated ....................23
Ethanol ............................... .556
Event Data Recorder ........................82
Exhaust Gas Caution ....................110,559
Exhaust System .......................110,637
Exterior Lights ...........................113
Filters Air Cleaner .......................... .618
Air Conditioning .................436, 619, 625
Engine Oil ........................ .617, 676
Engine Oil Disposal .....................617
10
INDEX 705

Flashers............................... .582
Hazard Warning ....................... .582
Turn Signal ..................113, 316, 670, 672
Flooded Engine Starting ....................466
Fluid, Brake ............................ .677
Fluid Capacities ......................... .675
Fluid Leaks .............................113
Fluid Level Checks Brake ............................... .646
Cooling System ........................ .639
Engine Oil ........................... .614
Fluids, Lubricants And Genuine Parts ...........676
Fog Lights ............................. .671
Fog Light Service ........................ .671
Folding Rear Seat ........................ .159
Forward Collision Warning ..................217
Four-Way Hazard Flasher ...................582
Freeing A Stuck Vehicle .....................600
Front Axle (Differential) .....................647 Fuel
.................................. .555
Adding ............................. .559
Additives ............................ .557
Clean Air ............................ .555
Economy Mode ....................... .470
Ethanol ............................. .556
Gasoline ............................. .555
Light ............................... .312
Materials Added ....................... .557
Methanol ............................ .556
Octane Rating ..................... .555, 676
Requirements ...................... .555, 675
Tank Capacity ......................... .675
Fueling ............................... .559
Fuses ................................. .657
Garage Door Opener (HomeLink) ..........250, 257
Gasoline,

Clean Air ....................... .555
Gasoline (Fuel) .......................... .555
706 INDEX

Lead Free Gasoline....................... .555
Leaks, Fluid .............................113
Life Of Tires ............................ .543
Liftgate .................................46
Liftgate Window Wiper/Washer ...............279
Light Bulbs ..............................113
Lights ..............................113,168
AirBag.........................79, 111, 294
Automatic Headlights ....................170
Back-Up ............................. .672
Brake Assist Warning ....................511
Brake Warning ........................ .295
Bulb Replacement ...................... .669
Cargo .............................. .274
Center Mounted Stop ....................674
Cruise ........................... .317, 321
Daytime Running ...................... .171
Dimmer Switch, Headlight .................168
Engine Temperature Warning ...............298Exterior
..............................113
Fog ................................ .671
Hazard Warning Flasher ..................582
Headlights ........................ .669, 670
Headlights On With Wipers ................170
Hill Descent Control Indicator ..............515
Illuminated Entry ........................23
Low Fuel ............................ .312
Malfunction Indicator (Check Engine) .........305
Map Reading ......................... .175
Park ............................... .315
Passing ............................. .178
Reading .......................... .175, 248
Rear Servicing ........................ .672
Rear Tail Lamps ....................... .672
Seat Belt Reminder ..................... .293
Security Alarm ........................ .297
Service .............................. .669
Side Marker .......................... .672
10
INDEX 709

Tire Pressure Monitoring (TPMS)............308
Traction Control ........................511
Turn Signal ..............113, 168, 316, 670, 672
Vanity Mirror ......................... .133
Warning (Instrument Cluster Description) . . .298, 316
Loading Vehicle ......................... .563
Tires ............................... .528
Load Shed Battery Saver Mode ..................... .342
Battery Saver On ...................... .342
Electrical Load Reduction .................342
Intelligent Battery Sensor ..................342
Locks ..................................32
Automatic Door .........................35
Child Protection .........................35
Door .................................32
Power Door ............................34 Lubrication, Body
........................ .629
Lug Nuts .............................. .583
Maintenance Free Battery ....................623
Maintenance Procedures ....................614
Maintenance Schedule ...................680, 682
Malfunction Indicator Light (Check Engine) . . .305, 611
Manual, Service ......................... .694
Memory Feature (Memory Seat) ...............162
Memory Seat ........................... .162
Memory Seats And Radio ...................162
Methanol .............................. .556
Mirrors ............................... .122
Electric Powered ....................... .131
Electric Remote ........................ .131
Exterior Folding ....................... .130
Heated .............................. .132
710 INDEX