2007 JEEP COMPASS catalytic converter

25. Malfunction Indicator Light
This light is part of an onboard diagnostic system
called OBD that monitors emissions, engine, and
automatic transmission control systems. The light
will illuminate when the key is in the ON/RUN position
before engine start. If the bulb does not come on when
turning the key from OFF to ON/RUN, have the condi-
tion checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc. may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations the vehicle will drive normally and will
not require towing.
If the Malfunction Indicator Light flashes when the
engine is running, serious conditions may exist thatcould lead to immediate loss of power or severe catalytic
converter damage. The vehicle should be serviced as
soon as possible if this occurs.
If this indicator comes on, the entire, PRNDL/ odometer,
display will brighten to FULL DAYTIME INTENSITY
and will not be dimmable.
26. Front Fog Light Indicator — If Equipped
This light shows when the front fog lights are ON.
27. Electronic Stability Program (ESP) Indicator
Light/Traction Control System (TCS) Indicator Light —
If Equipped
If this indicator light flashes during accelera-
tion, apply as little throttle as possible. While
driving, ease up on the accelerator. Adapt your
speed and driving to the prevailing road con-
ditions, and do not switch off the ESP, or TCS — if
equipped.
174 UNDERSTANDING YOUR INSTRUMENT PANEL

Manual Transaxle
Before starting the engine fully apply the parking brake,
press the clutch pedal to the floor and place the gear
selector in NEUTRAL.
NOTE:The engine will not start unless the clutch pedal
is pressed to the floor.
NOTE:If key won’t turn and steering wheel is locked,
rotate the wheel in either direction to relieve pressure on
the locking mechanism and then turn the key.
Normal Starting
Normal Starting of either a cold or a warm engine does
not require pumping or depressing the accelerator pedal.
Simply turn the ignition switch to the “START’” position
and release when the engine starts. If the engine fails to
start within 15 seconds, turn the ignition switch to the
“OFF” position, wait 10 to 15 seconds, then repeat the
normal starting procedure.
WARNING!
Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
axle cannot be started this way. Unburned fuel could
enter the catalytic converter and once the engine has
started, ignite and damage the converter and vehicle.
If the vehicle has a discharged battery, booster cables
may be used to obtain a start from another vehicle.
This type of start can be dangerous if done improp-
erly, so follow the procedure carefully. See section 6
of this manual for jump starting instructions.
Extremely Cold Weather (below
20°F or
29°C)
To insure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your dealer) is recommended.
STARTING AND OPERATING 233
5

•An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
•The use of fuel additives which are now being sold as
octane enhancers is not recommended. Most of these
products contain high concentrations of methanol.
Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas which can kill.
Never run the engine in a closed area, such as a
garage, and never sit in a parked vehicle with the
engine running for an extended period. If the vehicle is
stopped in an open area with the engine running for
more than a short period, adjust the ventilation system
to force fresh, outside air into the vehicle.
280 STARTING AND OPERATING

WARNING!
Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
axle cannot be started this way and may be damaged.
Unburned fuel could enter the catalytic converter
and once the engine has started, ignite and damage
the converter and vehicle. If the vehicle has a dis-
charged battery, booster cables may be used to ob-
tain a start from another vehicle. This type of start
can be dangerous if done improperly, so follow this
procedure carefully.
WARNING!
Wear eye protection and remove any metal jewelry
such as watch bands or bracelets that might make an
inadvertent electrical contact. You could be seriously
injured.
1. Wear eye protection and remove any metal jewelry
such as watch bands or bracelets that might make an
inadvertent electrical contact.
2. When boosting from a battery in another vehicle, park
that vehicle within booster cable reach but without
letting the vehicles touch. Set parking brake, place auto-
matic transaxle in PARK (manual transaxle in NEU-
TRAL) and turn ignition to OFF for both vehicles.
3. Turn off the heater, radio and all unnecessary electrical
loads.
306 WHAT TO DO IN EMERGENCIES

MAINTAINING YOUR VEHICLE
CONTENTS

Engine Compartment — Gasoline Engines.....316

Onboard Diagnostic System — OBD II........317
▫Loose Fuel Filler Cap Message............317

Emissions Inspection And Maintenance
Programs............................318

Replacement Parts......................319

Dealer Service.........................320

Maintenance Procedures..................320
▫Engine Oil..........................320▫Drive Belt — Check Condition............324
▫Spark Plugs.........................324
▫Catalytic Converter....................325
▫Crankcase Emission Control System........326
▫Fuel Filter..........................327
▫Air Cleaner Element (Filter)..............327
▫Maintenance-Free Battery................327
▫Air Conditioner Maintenance.............329
▫Power Steering — Fluid Check............330
7

Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.CAUTION!
Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and the
vehicle.
MAINTAINING YOUR VEHICLE 325
7

Battery............................... 327
Keyless Transmitter Replacement (RKE)....... 29
Belts,Drive ............................ 324
Body Mechanism Lubrication............... 331
B-Pillar Location........................ 255
Brake Assist System...................... 140
Brake Fluid............................ 364
Brake, Parking.......................... 244
Brake System........................246,339
Anti-Lock (ABS)....................138,247
Hoses.............................. 339
Master Cylinder....................... 340
Parking............................. 244
Warning Light........................ 169
Brakes.............................246,339
Brake/Transmission Interlock............... 236
Break-In Recommendations, New Vehicle........ 72
Bulb Replacement.....................354,355
Bulbs,Light ............................ 354Calibration, Compass..................... 184
Capacities, Antifreeze (Engine Coolant)........ 362
Capacities, Fluid........................ 362
Caps, Filler
Fuel................................ 281
Oil (Engine).......................316,323
Car Washes............................ 345
Carbon Monoxide Warning................. 280
Cargo Area Cover....................... 154
Cargo Area Features...................... 152
Cargo Compartment
Light ............................... 152
Luggage Carrier....................... 159
CargoLight ............................ 152
Cargo Load Floor........................ 155
Cargo Tie-Downs........................ 155
Carrier, Luggage........................ 159
Catalytic Converter...................... 325
Caution, Exhaust Gas...................... 73
INDEX 393
10