2017 JEEP COMPASS fuel cap

ONBOARD DIAGNOSTIC SYSTEM — OBD II . . .125
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ........................ .126
▫ Loose Fuel Filler Cap Message .............126
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS .......................... .127
96 GETTING TO KNOW YOUR INSTRUMENT PANEL

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle”. Follow the warnings under the Cooling System
Pressure Cap paragraph.
4. Instrument Cluster Display — If Equipped / Odometer Display / Trip Odometer Display
Instrument Cluster Display — If Equipped
The instrument cluster display features a driver-interactive
display that is located in the instrument cluster. Refer to
“Instrument Cluster Display” in this section for further
information.
Message Display Area
When the appropriate conditions exist, the following
odometer messages will display:
door ............................. Door Open
gATE ........................... Liftgate OpenLoW tirE
.....................LowTirePr essure
gASCAP ........................ Fuel Cap Fault
noFUSE ........................... Fuse Fault
CHAngE OIL ................Oil Change Required
LoCOOL .........................Low Coolant
NOTE: Some of the above warnings will be displayed in
the instrument cluster display area located in the instru-
ment cluster.
Refer to ”Instrument Cluster Display” in this section for
further information.
LoW tirE
When the appropriate condition exists, the odometer dis-
play will toggle between LoW and tirE for three cycles.
gASCAP
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“gASCAP” message will display in the odometer display
area. Tighten the fuel filler cap properly and push the STEP
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 99

Yellow Telltale Lights
Engine Malfunction Warning Light
Yellow TelltaleLight What It Means
Engine Check/Malfunction Indicator Light (MIL)
The Engine Check/Malfunction Indicator Light (MIL) is a part of an Onboard Diagnostic System
called OBD II that monitors engine and automatic transmission control systems. The light will
illuminate when the ignition is in the ON position before engine start. If the bulb does not come
on when turning the key from OFF to ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap, poor quality fuel, etc., may illuminate the
light after engine start. The vehicle should be serviced if the light stays on through several typical
driving styles. In most situations, the vehicle will drive normally and will not require towing.
When the engine is running, the MIL may flash to alert serious conditions that could lead to im-
mediate loss of power or severe catalytic converter damage. The vehicle should be serviced as
soon as possible if this occurs.
WARNING!
A malfunctioning catalytic converter, as referenced
above, can reach higher temperatures than in normal
operating conditions. This can cause a fire if you drive
slowly or park over flammable substances such as dry
plants, wood, cardboard, etc. This could result in death
or serious injury to the driver, occupants or others.
CAUTION!
Prolonged driving with the Malfunction Indicator
Light (MIL) on could cause damage to the engine
control system. It also could affect fuel economy and
driveability. If the MIL is flashing, severe catalytic
converter damage and power loss will soon occur.
Immediate service is required.
116 GETTING TO KNOW YOUR INSTRUMENT PANEL

Loose Fuel Filler Cap Indicator Light — If Equipped
Yellow TelltaleLight What It Means
Loose Fuel Filler Cap Indicator Light — If Equipped
This light will illuminate when fuel filler cap is loose. Properly close the filler cap to disengage
the light. If the light does not turn off, please see your authorized dealer.
Low Washer Fluid Indicator Light — If Equipped
Yellow Telltale
Light What It Means
Low Washer Fluid Indicator Light — If Equipped
This indicator will illuminate when the windshield washer fluid is low.
Transmission Temperature Indicator Light
Yellow Telltale
Light What It Means
Transmission Temperature Indicator Light
This light indicates that the transmission fluid temperature is running hot. This may occur with
severe usage, such as trailer towing. If this light turns on, safely pull over and stop the vehicle.
Then, shift the transmission into NEUTRAL and run the engine at idle or faster until the light
turns off.
122 GETTING TO KNOW YOUR INSTRUMENT PANEL

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.
• 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
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”.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose or improp-
erly installed. A “gASCAP” message will be displayed in
126 GETTING TO KNOW YOUR INSTRUMENT PANEL

▫To Deactivate ........................ .217
▫ To Resume Speed ..................... .217
▫ To Vary The Speed Setting ................217
▫ To Accelerate For Passing .................219
 PARKVIEW REAR BACK UP CAMERA — IF
EQUIPPED ............................219
 ADDING FUEL ........................ .221
▫ Fuel Filler Cap (Gas Cap) .................221
▫ Loose Fuel Filler Cap Message .............222
 VEHICLE LOADING .....................222
▫ Certification Label ..................... .222
 TRAILER TOWING ..................... .224
▫ Common Towing Definitions ...............224 ▫
Trailer Hitch Classification ................227
▫ Trailer Towing Weights (Maximum Trailer Weight
Ratings) ............................ .228
▫ Trailer And Tongue Weight ...............229
▫ Towing Requirements ...................229
▫ Towing Tips ..........................233
 RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) ....................235
▫ Towing This Vehicle Behind Another Vehicle. . . .235
 DRIVING TIPS ..........................236
▫ On-Road Driving Tips ...................236
▫ Off-Road Driving Tips ...................236
196 STARTING AND OPERATING

ADDING FUEL
Fuel Filler Cap (Gas Cap)
The gas cap is behind the fuel filler door, on the left side of
the vehicle. If the gas cap is lost or damaged, be sure the
replacement cap is for use with this vehicle.
After removing the gas cap, place the gas cap tether cable
over a hook on the inside of the fuel door. This keeps the
gas cap suspended away from and protects the vehicle’s
surface.
CAUTION!
•Damage to the fuel system or emission control sys-
tem could result from using an improper fuel tank
filler cap. A poorly fitting cap could let impurities
into the fuel system.
• A poorly fitting fuel filler cap may cause the “Mal-
function Indicator Light (MIL)” to turn on.
• To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
WARNING!
•Never have any smoking materials lit in or near the
vehicle when the gas cap is removed or the tank is
being filled.
• Never add fuel when the engine is running. This is
in violation of most state and federal fire regulations
and may cause the MIL to turn on.
• A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
Fuel Filler Cap
6
STARTING AND OPERATING 221

NOTE:
•When the fuel nozzle “clicks” or shuts off, the fuel tank
is full.
• Tighten the gas cap about ¼ turn until you hear one
click. This is an indication that cap is properly tightened.
• If the gas cap is not tightened properly, the MIL will
come on. Be sure the gas cap is tightened every time the
vehicle is refueled.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose or improperly installed, a “gASCAP”
message will be displayed in the Odometer/Trip Odom-
eter in the instrument cluster. Refer to “Warning And
Indicator Lights” in “Getting To Know Your Instrument
Panel” for further information. Tighten the fuel filler cap
properly and push the odometer/trip odometer RESET
button to turn the message off. If the problem continues,
the message will appear the next time the vehicle is started.
Refer to “Onboard Diagnostic System” in “Getting To
Know Your Instrument Panel” for further information.
VEHICLE LOADING
Certification Label
As required by National Highway Traffic Safety Adminis-
tration regulations, your vehicle has a certification label
affixed to the driver’s side door or pillar.
This label contains the month and year of manufacture,
Gross Vehicle Weight Rating (GVWR), Gross Axle Weight
Rating (GAWR) front and rear, and Vehicle Identification
Number (VIN). A Month-Day-Hour (MDH) number is
included on this label and indicates the Month, Day and
Hour of manufacture. The bar code that appears on the
bottom of the label is your VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your vehicle
including driver, passengers, vehicle, options and cargo.
The label also specifies maximum capacities of front and
rear axle systems (GAWR). Total load must be limited so
GVWR and front and rear GAWR are not exceeded.
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the driver,
all passengers, options and cargo.
222 STARTING AND OPERATING