2017 JEEP GRAND CHEROKEE check engine

NOTE:
The engine block heater cord is a factory
installed option. If your vehicle is not
equipped, heater cords are available from
your authorized MOPAR dealer.
• A 12 Volt heater built into the fuel filterhousing aids in preventing fuel gelling. It is
controlled by a built-in thermostat.
• A Diesel Pre-Heat system both improves engine starting and reduces the amount of
white smoke generated by a warming
engine.
Normal Starting Procedure — Keyless
Enter-N-Go
Observe the instrument panel cluster lights
when starting the engine.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or press-
ing the accelerator pedal
1. Always apply the parking brake.
2. Press and hold the brake pedal while pushing the ENGINE START/STOP button
once. NOTE:
A delay of the start of up to five seconds is
possible under very cold conditions. The
"Wait to Start" telltale will be illuminated
during the pre-heat process, When the
engine Wait To Start light goes off the
engine will automatically crank.
CAUTION!
If the “Water in Fuel Indicator Light” re-
mains on, DO NOT START the engine be-
fore you drain the water from the fuel
filters to avoid engine damage. Refer to
“Draining Fuel/Water Separator Filter” in
“Servicing And Maintenance” for further
information.
3. The system will automatically engage the starter to crank the engine. If the vehicle
fails to start, the starter will disengage
automatically after 25 seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, push
the button again.
5. Check that the oil pressure warning light has turned off. 6. Release the parking brake.
Starting Fluids
The engine is equipped with a glow plug
preheating system. If the instructions in this
manual are followed, the engine should start
in all conditions and no type of starting fluid
should be used.
WARNING!
• Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build up may cause serious injury
or death.
• When leaving the vehicle, always make
sure the keyless ignition node is in the
“OFF” mode, remove the key fob from
the vehicle and lock the vehicle.
• Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
Allowing children to be in a vehicle un-
attended is dangerous for a number of
reasons. A child or others could be seri-
ously or fatally injured. Children should
be warned not to touch the parking
brake, brake pedal or the gear selector.
STARTING AND OPERATING
152

WARNING!
• Do not leave the key fob in or near thevehicle, or in a location accessible to
children, and do not leave the ignition of
a vehicle equipped with Keyless Enter-
N-Go in the ACC or ON/RUN mode. A
child could operate power windows,
other controls, or move the vehicle.
STOP/START SYSTEM — IF
EQUIPPED
The Stop/Start function is developed to re-
duce fuel consumption. The system will stop
the engine automatically during a vehicle
stop if the required conditions are met. Re-
leasing the brake pedal or pressing the accel-
erator pedal will automatically re-start the
engine.
Automatic Mode
The Stop/Start feature is
enabled after every nor-
mal customer engine
start. At that time, the
system will go into STOP/
START READY and if all
other conditions are met,
can go into a STOP/START AUTOSTOP AC-
TIVE “Autostop” mode.
To Activate The Autostop Mode, The Following
Must Occur:
• The system must be in STOP/START READY state. A STOP/START READY mes-
sage will be displayed in the instrument
cluster display within the Stop/Start sec-
tion. Refer to “Instrument Cluster Dis-
play” in “Getting To Know Your Instrument
Panel” in your Owners Manual at
www.jeep.com/en/owners/manuals/ .
• The vehicle must be completely stopped.
• The shifter must be in a forward gear and the brake pedal depressed. The engine will shut down, the tachometer
will move to the zero position and the Stop/
Start telltale will illuminate indicating you
are in Autostop. Customer settings will be
maintained upon return to an engine running
condition.
Refer to the “Stop/Start System” in the
“Starting And Operating” section located in
your Owners Manual at
www.jeep.com/en/owners/manuals/ .
Possible Reasons The Engine Does Not
Autostop
Prior to engine shut down, the system will
check many safety and comfort conditions to
see if they are fulfilled. Detailed information
about the operation of the Stop/Start system
may be viewed in the instrument cluster dis-
play Stop/Start Screen. In the following situ-
ations, the engine will not stop:
• Driver’s seat belt is not buckled.
• Driver’s door is not closed.
• Battery temperature is too warm or cold.
• Battery charge is low.
• The vehicle is on a steep grade.
153

Refer to or “Instrument Cluster Display”
in “Getting To Know Your Instrument
Panel” in your Owners Manual at
www.jeep.com/en/owners/manuals/ .
3. At the next vehicle stop (after turning off the STOP/START system), the engine will
not be stopped.
4. The STOP/START system will reset itself back to an ON condition every time the
ignition is turned off and back on.
To Manually Turn On The Stop/Start
System
Push the STOP/START Off switch (located on
the switch bank). The light on the switch will
turn off.
For complete details on the Stop/Start Sys-
tem refer to the “Stop/Start System” in the
“Starting And Operating” section located in
your Owners Manual at
www.jeep.com/en/owners/manuals/
ENGINE BREAK-IN
RECOMMENDATIONS
3.6L & 5.7L Engines
For vehicles equipped with the 3.6L or 5.7L use
the following engine break-in recommenda-
tions:A long break-in period is not required for
the drivetrain (engine, transmission, clutch,
and rear axle) in your new vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles
(100 km), speeds up to 50 or 55 mph (80 or
90 km/h) are desirable.
While cruising, brief full-throttle acceleration
within the limits of local traffic laws contrib-
utes to a good break-in. However, wide-open
throttle acceleration in low gear can be det-
rimental and should be avoided.
The engine oil, transmission fluid, and axle
lubricant installed at the factory is high-
quality and energy-conserving. Oil, fluid, and
lubricant changes should be consistent with
anticipated climate and conditions under which vehicle operations will occur. For the
recommended viscosity and quality grades,
refer to “Fluids And Lubricants” in "Techni-
cal Specifications”.CAUTION!
Never use Non-Detergent Oil or Straight
Mineral Oil in the engine or damage may
result.
NOTE:
A new engine may consume some oil during
its first few thousand miles (kilometers) of
operation. This should be considered a nor-
mal part of the break-in and not interpreted
as an indication of difficulty. Please check
your oil level with the engine oil indicator
often during the break in period. Add oil as
required.
155

Diesel Engines
The diesel engine does not require a break-in
period due to its construction. Normal opera-
tion is allowed, providing the following rec-
ommendations are followed:
• Warm up the engine before placing it underload.
• Do not operate the engine at idle for pro- longed periods.
• Use the appropriate transmission gear to prevent engine lugging.
• Observe vehicle oil pressure and tempera- ture indicators.
• Check the coolant and oil levels frequently.
• Vary throttle position at highway speeds when carrying or towing significant weight.
NOTE:
Light duty operation such as light trailer
towing or no load operation will extend the
time before the engine is at full efficiency.
Reduced fuel economy and power may be
seen at this time. The engine oil installed in the engine at the
factory is a high-quality energy conserving
type lubricant. Oil changes should be consis-
tent with anticipated climate conditions un-
der which vehicle operations will occur. The
recommended viscosity and quality grades
are shown under “Fluids And Lubricants” in
"Technical Specifications” in this manual.
NON-DETERGENT OR STRAIGHT MINERAL
OILS MUST NEVER BE USED.
SRT Engines
The following tips will be helpful in obtaining
optimum performance and maximum dura-
bility for your new SRT Vehicle.
Despite modern technology and World Class
manufacturing methods, the moving parts of
the vehicle must still wear in with each other.
This wearing in occurs mainly during the first
500 miles (805 km) and continues through
the first oil change interval.
It is recommended for the operator to observe
the following driving behaviors during the
new vehicle break-in period:
0 to 100 miles (0 to 161 km):
• Do not allow the engine to operate at idle
for an extended period of time.
• Depress the accelerator pedal slowly and not more than halfway to avoid rapid ac-
celeration.
• Avoid aggressive braking.
• Drive with the engine speed less than 3,500 RPM.
• Maintain vehicle speed below 55 mph (88 km/h) and observe local speed limits.
100 to 300 miles (161 to 483 km):
• Depress the accelerator pedal slowly and not more than halfway to avoid rapid ac-
celeration in lower gears (1st to 3rd gears).
• Avoid aggressive braking.
• Drive with the engine speed less than 5,000 RPM.
• Maintain vehicle speed below 70 mph (112 km/h) and observe local speed
limits.
STARTING AND OPERATING
156

300 to 500 miles (483 to 805 km):
• Exercise the full engine rpm range, shift-ing manually (paddles or gear shift) at
higher rpms when possible.
• Do not perform sustained operation with the accelerator pedal at wide open
throttle.
• Maintain vehicle speed below 85 mph (136 km/h) and observe local speed
limits.
For the first 1500 miles (2414 km):
• Do not participate in track events, sport driving schools, or similar activities during
the first 1500 mi (2414 km).
NOTE:
Check engine oil with every refueling and add
if necessary. Oil and fuel consumption may
be higher through the first oil change interval.
Running the engine with an oil level below
the add mark can cause severe engine dam-
age.AUTOMATIC
TRANSMISSION
WARNING!
• It is dangerous to shift out of PARK or NEUTRAL if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle
could accelerate quickly forward or in
reverse. You could lose control of the
vehicle and hit someone or something.
Only shift into gear when the engine is
idling normally and your foot is firmly
pressing the brake pedal.
• Unintended movement of a vehicle
could injure those in or near the vehicle.
As with all vehicles, you should never
exit a vehicle while the engine is run-
ning. Before exiting a vehicle, always
apply the parking brake, shift the trans-
mission into PARK, and turn the ignition
OFF. When the ignition is in the OFF
mode, the transmission is locked in
PARK, securing the vehicle against un-
wanted movement.
WARNING!
• When leaving the vehicle, always makesure the ignition is in the OFF mode,
remove the key fob from the vehicle, and
lock the vehicle.
• Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
Allowing children to be in a vehicle un-
attended is dangerous for a number of
reasons. A child or others could be seri-
ously or fatally injured. Children should
be warned not to touch the parking
brake, brake pedal or the transmission
gear selector.
• Do not leave the key fob in or near the
vehicle (or in a location accessible to
children), and do not leave the ignition
in the ACC or ON/RUN mode. A child
could operate power windows, other con-
trols, or move the vehicle.
157

5. Shift the transmission into NEUTRAL.
6. Using a ballpoint pen or similar object,push and hold the recessed transfer case
NEUTRAL (N) button (located by the se-
lector switch) for one second.
7. When the NEUTRAL (N) indicator light turns off, release the NEUTRAL (N) but-
ton. After the NEUTRAL (N) button has
been released, the transfer case will shift
to the position indicated by the selector
switch. 8. Shift the transmission into PARK. Turn
the engine OFF.
9. Release the brake pedal.
10. Disconnect vehicle from the tow vehicle.
11. Start the engine.
12. Press and hold the brake pedal.
13. Release the parking brake.
14. Shift the transmission into DRIVE, re- lease the brake pedal, and check that
the vehicle operates normally.
NOTE:
• Steps 1 through 5 are requirements that must be met before pushing the NEU-
TRAL (N) button, and must continue to be
met until the shift has been completed. If
any of these requirements are not met
before pushing the NEUTRAL (N) button
or are no longer met during the shift, the
NEUTRAL (N) indicator light will flash
continuously until all requirements are
met or until the NEUTRAL (N) button is
released. • The ignition must be in the ON/RUN mode
for a shift to take place and for the position
indicator lights to be operable. If the igni-
tion is not in the ON/RUN mode, the shift
will not take place and no position indica-
tor lights will be on or flashing.
• A flashing NEUTRAL (N) position indica- tor light indicates that shift requirements
have not been met.
NEUTRAL (N) Switch
STARTING AND OPERATING
202

Center High-Mounted Stop Lamp (CHMSL)
The center high mounted stop lamp is an
LED. Service at an authorized dealer.
Rear License Lamp
The rear license lamps are LEDs. See your
authorized dealer for service.
FUSES
WARNING!
• When replacing a blown fuse, always usean appropriate replacement fuse with
the same amp rating as the original fuse.
Never replace a fuse with another fuse of
higher amp rating. Never replace a
blown fuse with metal wires or any other
material. Failure to use proper fuses may
result in serious personal injury, fire
and/or property damage.
• Before replacing a fuse, make sure that
the ignition is off and that all the other
services are switched off and/or disen-
gaged.
• If the replaced fuse blows again, contact
an authorized dealer.
• If a general protection fuse for safety
systems (air bag system, braking sys-
tem), power unit systems (engine sys-
tem, gearbox system) or steering system
blows, contact an authorized dealer.
General Information
The fuses protect electrical systems against
excessive current.
When a device does not work you must check
the electrical circuit inside the fuse for a
break/melt.
Also please be aware that when using power
outlets for extended periods of time with the
engine off may result in vehicle battery dis-
charge.
Underhood Fuses
The Power Distribution Center is located in
the engine compartment near the battery.
This center contains cartridge fuses, micro
fuses, relays, and circuit breakers. A descrip-
tion of each fuse and component may be
stamped on the inside cover, otherwise the
cavity number of each fuse is stamped on the
inside cover that corresponds to the following
chart.
Center High-Mounted Stop Lamp
209

SERVICING AND MAINTENANCE
SCHEDULED SERVICING NON-
SRT......................232
Maintenance Plan Non-SRT........233
Heavy Duty Use Of The Vehicle ......234
SCHEDULED SERVICING – SRT .235
Maintenance Plan – SRT..........236
SCHEDULED SERVICING — DIESEL
ENGINE.................. .239
Maintenance Plan — Diesel Fuel Up To
B5 Biodiesel.................241
Additional Maintenance — B6 To
B20 Biodiesel ................242
ENGINE COMPARTMENT .....244
3.6L Engine.................244
5.7L Engine .................245
6.4L Engine .................246 3.0L Diesel Engine
.............247
Checking Oil Level — Gasoline Engine .248
Checking Oil Level — Diesel Engine . . .248
Adding Washer Fluid ............248
Brake System ................249
Automatic Transmission ..........250
Maintenance-Free Battery ........250
DEALERSERVICE .......... .251
Air Conditioner Maintenance.......251
Windshield Wiper Blades .........253
Cooling System ...............257
RAISINGTHEVEHICLE .......258
TIRES................... .258
Tire Safety Information..........258
Wheel And Wheel Trim Care .......264
Tire Chains (Traction Devices) .......265Tire Rotation Recommendations
.....265
DEPARTMENT OF TRANSPORTA-
TION UNIFORM TIRE QUALITY
GRADES................. .266
Treadwear...................266
Traction Grades ...............266
Temperature Grades .............267
STORINGTHEVEHICLE.......267
BODYWORK...............268
Body And Underbody Maintenance . . .268
Preserving The Bodywork .........268
INTERIORS............... .269
Seats And Fabric Parts...........269
Plastic And Coated Parts ..........270
Leather Parts .................270
SERVICING AND MAINTENANCE
231