2018 JEEP GRAND CHEROKEE light

nuts/bolts should be torqued using a properly
calibrated torque wrench using a high quality
six sided (hex) deep wall socket.
Torque Specifications
Base Model Vehicle
Lug Nut/Bolt
Torque**Lug Nut/Bolt
SizeLug Nut/Bolt
Socket Size
130 Ft-Lbs
(176 N·m)M14 x 1.50 22 mm
SRT Model Vehicle
Lug Nut/Bolt
Torque**Lug Nut/Bolt
SizeLug Nut/Bolt
Socket Size
110 Ft-Lbs
(149 N·m)M14 x 1.50 22 mm
**Use only your authorized dealer recom-
mended lug nuts/bolts and clean or remove
any dirt or oil before tightening.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion
or loose particles.Tighten the lug nuts/bolts in a star pattern
until each nut/bolt has been tightened twice.
Ensure that the socket is fully engaged on the
lug nut/bolt (do not insert it half way).
NOTE:
If in doubt about the correct tightness, have
them checked with a torque wrench by your
authorized dealer or service station.
After 25 miles (40 km), check the lug nut/
bolt torque to be sure that all the lug nuts/
bolts are properly seated against the wheel.
WARNING!
To avoid the risk of forcing the vehicle off
the jack, do not tighten the lug nuts fully
until the vehicle has been lowered. Failure
to follow this warning may result in per-
sonal injury.
FUEL REQUIREMENTS —
GASOLINE ENGINES
3.6L Engine
These engines are designed to meet all emis-
sions regulations and provide excellent fuel
economy and performance when using high-
quality unleaded gasoline with a minimum
Research Octane Number (RON) of 91.
Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives
Torque Pattern
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are recommended. Using gasolines that have
these additives may help improve fuel
economy, reduce emissions, and maintain
vehicle performance.
Poor quality gasoline can cause problems
such as hard starting, stalling and stumble. If
you experience these problems, try another
brand of gasoline before considering service
for the vehicle.
5.7L Engine
Theses engines are designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high-quality unleaded gasoline having
an Research Octane Number (RON) of 91 to
95. The manufacturer recommends the use
of a 95 Research Octane Number for opti-
mum performance.
Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives
are recommended. Using gasolines that have
these additives may help improve fuel
economy, reduce emissions, and maintain
vehicle performance.
Poor quality gasoline can cause problems
such as hard starting, stalling and stumble. If
you experience these problems, try another
brand of gasoline before considering service
for the vehicle.
6.2L/6.4L Engine
Your vehicle is designed to meet all emissions
regulations and provide excellent fuel
economy and performance when using high-
quality unleaded gasoline having an Re-
search Octane Number (RON) of 98 or
higher. The manufacturer recommends the
use of 98 Research Octane Number (RON) or
higher for optimum performance.Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Methanol
(Methyl) is used in a variety of concentrations
when blended with unleaded gasoline. You
may find fuels containing 3% or more metha-
nol along with other alcohols called cosol-
vents. Problems that result from using
methanol/gasoline are not the responsibility
of the manufacturer. While MTBE is an oxy-
genate made from Methanol, it does not have
the negative effects of Methanol.
WARNING!
Do not use gasolines containing Methanol.
Use of these blends may result in starting
and drivability problems and may damage
critical fuel system components.
TECHNICAL SPECIFICATIONS
272

Ethanol
The manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 15% ethanol. Purchasing your fuel from
a reputable supplier may reduce the risk of
exceeding this 15% limit and/or of receiving
fuel with abnormal properties. It should also
be noted that an increase in fuel consump-
tion should be expected when using ethanol-
blended fuels, due to the lower energy con-
tent of ethanol. Problems that result from
using methanol/gasoline or E-85 ethanol
blends are not the responsibility of the
manufacturer.
CAUTION!
Use of fuel with Ethanol content higher
than 15% may result in engine malfunc-
tion, starting and operating difficulties,
and materials degradation. These adverse
effects could result in permanent damage
to your vehicle.
Reformulated Gasoline
Many areas of the country require the use of
cleaner burning gasoline referred to as “Re-
formulated Gasoline”. Reformulated gasoline
contains oxygenates and are specifically
blended to reduce vehicle emissions and im-
prove air quality.
The use of reformulated gasoline is recom-
mended. Properly blended reformulated
gasoline will provide improved performance
and durability of engine and fuel system
components.
Do Not Use E-85 In Non-Flex Fuel
Vehicles
Non-Flex Fuel Vehicles (FFV) are compatible
with gasoline containing up to 15% ethanol
(E-15). Use of gasoline with higher ethanol
content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled
with E-85 fuel, the engine will have some or
all of these symptoms:
• Operate in a lean mode.
• OBD II “Malfunction Indicator Light” on.• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component
corrosion.
CNG And LP Fuel System Modifications
Modifications that allow the engine to run on
compressed natural gas (CNG) or liquid pro-
pane (LP) may result in damage to the en-
gine, emissions, and fuel system compo-
nents. Problems that result from running
CNG or LP are not the responsibility of the
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
Materials Added To Fuel
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish re-
moval may contain active solvents or similar
ingredients. These can harm fuel system gas-
ket and diaphragm materials.
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WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable un-
der certain conditions and hazardous or
explosive when mixed with diesel fuel.
Diesel fuel is seldom completely free of wa-
ter. To prevent fuel system trouble, drain the
accumulated water from the fuel/water sepa-
rator using the fuel/water separator drain pro-
vided on the fuel filter housing. If you buygood quality fuel and follow the cold weather
advice above, fuel conditioners should not be
required in your vehicle. If available in your
area, a high cetane “premium” diesel fuel
may offer improved cold-starting and
warm-up performance.
CAUTION!
If the “Water in Fuel Indicator Light” re-
mains on, DO NOT START engine before
CAUTION!
you drain the water from the fuel filter(s) to
avoid engine damage. Refer to “Draining
Fuel/Water Separator Filter” in “Servicing
And Maintenance” in your Owner’s Manual
for further information.
Fuel Icon Identification Compliant To EN16942
Fuel IconsWhat It Means
E5Unleaded fuel containing up to 2,7 % (m/m) oxygen and a maximum ethanol content of 5,0 % (V/V)EN228compliant
fuel
E10Unleaded fuel containing up to 3,7 % (m/m) oxygen and a maximum ethanol content of 10,0 % (V/V)EN228compliant
fuel
TECHNICAL SPECIFICATIONS
276

Component Fluid, Lubricant, or Genuine Part
Brake Master Cylinder We recommend you use Mopar DOT 3 Brake Fluid, SAE J1703 should be
used. If DOT 3, SAE J1703 brake fluid is not available, then DOT 4 is
acceptable.
If using DOT 4 brake fluid, the fluid must be changed every 24 months.
This interval is time based only, mileage intervals do not apply.
MOPAR ACCESSORIES
Authentic Accessories By Mopar
In choosing Authentic Accessories you gain
far more than expressive style, premium pro-
tection, or extreme entertainment, you also
benefit from enhancing your vehicle with ac-
cessories that have been thoroughly tested
and factory-approved.The following highlights just some of the
many Authentic Jeep Accessories by Mopar
featuring a fit, finish, and functionality spe-
cifically for your Jeep Grand Cherokee.
EXTERIOR:
• Front End Cover • Window Air Deflectors • Molded Splash Guards
• Wheels • Skid Plates • Tow Hooks
• Tubular Side Steps • Hitch Receiver • Front Air Deflector
283

INTERIOR:
• Carpet Floor Mats • Katzkin Leather Interiors • Cargo Net
• All-weather Floor Mats • Footwell Lighting • Bright Pedal Kit
• Cargo Barrier • Molded Cargo Tray • Door Sill Guards
ELECTRONICS:
• Remote Start • Mopar Connect • Rear View Camera
• Park Distance Sensors
CARRIERS:
• Sport Utility Bars • Roof Box Cargo Carrier • Roof Mount Bike Carrier
• Roof Mount Ski and Snowboard Carrier • Roof Mount Water Sports Carrier • Roof Mount Cargo Basket and Cargo Net
For the full line of Authentic Jeep Accesso-
ries by Mopar, visit your local dealership or
online at mopar.com for U.S. residents and
mopar.ca for Canadian residents.NOTE:
All parts are subject to availability.TECHNICAL SPECIFICATIONS
284

To use CarPlay, make sure you are using
iPhone 5 or later, have Siri enabled in Set-
tings, that your iPhone is unlocked for the
very first connection only, and then use the
following procedure:
1. Connect your iPhone to one of the media
USB ports in your vehicle.
NOTE:
Be sure to use the factory-provided Light-
ning cable that came with your phone, as
aftermarket cables may not work.
2. Once the device is connected and recog-
nized, CarPlay should automatically
launch, but you can also launch it by
touching the CarPlay icon on the touch-
screen, located under Apps.Once CarPlay is up and running on your
Uconnect system, the following features can
be utilized using your iPhone’s data plan:
• Phone
• Music
• Messages
• Maps
NOTE:
To use CarPlay make sure that cellular data is
turned on, and that you are in an area with
cellular coverage. Your data and cellular cov-
erage is shown on the left side of the radio
screen.Apps — If Equipped
To access Apps, press the “Uconnect Apps”
button on the touchscreen to browse the list
of applications:
• EcoDrive
• MyCar
• TuneIn
• Deezer
• Reuters
• Twitter
• Facebook Check-In
• Apple CarPlay
• Android Auto, and many more.
CarPlay
CarPlay Data And Cellular Coverage
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Apple CarPlay Integration — If Equipped
Uconnect works seamlessly with Apple Car-
Play, the smarter, more secure way to use
your iPhone in the car, and stay focused on
the road. Use your Uconnect Touchscreen
display, the vehicle's knobs and controls, and
your voice with Siri to get access to Apple
Music, Maps, Messages, and more.
To use CarPlay, make sure you are using
iPhone 5 or later, have Siri enabled in Set-
tings, that your iPhone is unlocked for the
very first connection only, and then use the
following procedure:
1. Connect your iPhone to one of the media
USB ports in your vehicle.
NOTE:
Be sure to use the factory-provided Light-
ning cable that came with your phone, as
aftermarket cables may not work.
2. Once the device is connected, the system
displays the CarPlay home screen. Apple
CarPlay automatically launches, but if
not, refer to the Uconnect Owner’sManual Supplement for the procedure to
enable the feature “AutoShow.” You can
also launch it by pressing the CarPlay icon
located in the “Apps” menu. If you use
Apple CarPlay frequently you can move
the app to the menu bar at the bottom of
the touchscreen. Press the “Apps” button
and locate the CarPlay app; then drag and
drop the selected App to replace an exist-
ing shortcut in the main menu bar.
Once CarPlay is up and running on your
Uconnect system, the following features can
be utilized using your iPhone’s data plan:• Phone
• Music
• Messages
• Maps
NOTE:
To use CarPlay make sure that cellular data is
turned on, and that you are in an area with
cellular coverage. Your data and cellular cov-
erage is shown on the left side of the radio
screen.
CarPlay
CarPlay Data And Cellular Coverage
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