engine JEEP COMPASS 2012 1.G Service Manual

•Most of the time, when in Automatic Operation, you
can temporarily put the system into Recirculation
Mode by pressing the Recirculation button. However,
under certain conditions, while in Automatic Mode,
the system is blowing air out the defrost vents. When
these conditions are present, and the Recirculation
button is pressed, the indicator will flash and then turn
off. This tells you that you are unable to go into
Recirculation Mode at this time. If you would like the
system to go into Recirculation Mode, you must first
move the Mode knob to Panel, Bi-Level and then press
the Recirculation button. This feature reduces the
possibility of window fogging.
Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
Summer Operation
The engine cooling system in air-conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A solution of 50% ethylene
glycol antifreeze coolant and 50% water is recommended.
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for proper coolant selection.
Winter Operation
Use of the air Recirculation Mode during winter months is
not recommended because it may cause window fogging.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes in the
fresh air and high blower settings. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
286 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 293
▫ Manual Transmission – If Equipped ....... 293
▫ Automatic Transmission – If Equipped ..... 294
▫ Normal Starting ..................... 294
▫ Extreme Cold Weather
(Below –20°F Or 29°C)............... 295
▫ If Engine Fails To Start ................ 295
▫ After Starting ....................... 295
 Engine Block Heater — If Equipped ........ 296
Manual Transmission — If Equipped ........ 296
▫ Five–Speed Manual Transmission ......... 296
▫ Recommended Shift Speeds ............. 298
▫ Downshifting ....................... 298
 Automatic Transmission — If Equipped ...... 299
▫ Key Ignition Park Interlock ............. 300
▫ Brake/Transmission Shift Interlock System . . 300
▫ Gear Ranges ........................ 301
5

Tires — General Information ............. 336
▫ Tire Pressure ....................... 336
▫ Tire Inflation Pressures ................ 337
▫ Tire Pressures For High Speed Operation . . . 339
▫ Radial Ply Tires ..................... 339
▫ Spare Tire Matching Original Equipped Tire
And Wheel – If Equipped .............. 339
▫ Compact Spare Tire – If Equipped ........ 340
▫ Full Size Spare – If Equipped ............ 341
▫ Limited-Use Spare – If Equipped ......... 341
▫ Tire Spinning ....................... 342
▫ Tread Wear Indicators ................. 342
▫ Life Of Tire ........................ 343 ▫
Replacement Tires .................... 344
 Tire Chains .......................... 346
 Snow Tires .......................... 346
 Tire Rotation Recommendations ........... 346
 Tire Pressure Monitoring System (TPMS) ..... 348
▫ Base System ........................ 350
▫ Premium System – If Equipped .......... 352
▫ General Information .................. 356
 Fuel Requirements ..................... 357
▫ 2.0L And 2.4L Engine ................. 357
▫ Reformulated Gasoline ................ 357
▫ Gasoline/Oxygenate Blends ............. 358
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 358
5
STARTING AND OPERATING 291

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
•Before exiting a vehicle, always apply the parking
brake, shift the transmission into PARK, and re-
move the key fob from the ignition. When leaving
the vehicle, always lock your vehicle.
•Never leave children alone in a vehicle, or with
access to an unlocked vehicle.
•Allowing children to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured. Chil-
dren should be warned not to touch the parking
brake, brake pedal or the shift lever.(Continued)
WARNING! (Continued)
•Do not leave the key fob in or near the vehicle. A
child could operate power windows, other con-
trols, or move the vehicle.
Manual Transmission – If Equipped
Before starting the engine fully apply the parking brake,
press the clutch pedal to the floor, and place the shift
lever in NEUTRAL.
NOTE:
•The engine will not start unless the clutch pedal is
pressed to the floor.
•If the key will not turn and the steering wheel is
locked, rotate the wheel in either direction to relieve
pressure on the locking mechanism and then turn the
key.
5
STARTING AND OPERATING 293

Automatic Transmission – If Equipped
The shift lever must be in the PARK or NEUTRAL
position before you can start the engine. Apply the brakes
before shifting to any driving gear.
NOTE:You must press the brake pedal before shifting
out of PARK.
Tip Start
Do not press the accelerator. Turn the ignition switch to
the START position and release it as soon as the starter
engages. The starter motor will continue to run, and it
will disengage automatically when the engine is running.
If the engine fails to start, the starter will disengage
automatically in 10 seconds. If this occurs, turn the
ignition switch to the LOCK position, wait 10 to 15 sec-
onds, then repeat the “Normal Starting” procedure.
Normal Starting
Normal starting of either a cold or a warm engine does
not require pumping or pressing 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-
mission 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 improperly, so follow the procedure carefully.
Refer to “Jump Starting” in “What To Do In Emer-
gencies” for further information.
294 STARTING AND OPERATING

Extreme Cold Weather (Below –20°F or29°C)
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater (avail-
able from your authorized dealer) is recommended.
If Engine Fails To Start
If the engine fails to start after you have followed the
“Normal Starting” and “Extreme Cold Weather” proce-
dures, it may be flooded. Push the accelerator pedal all
the way to the floor and hold it there. Crank the engine
for no more than 15 seconds. This should clear any excess
fuel in case the engine is flooded. Leave the ignition key
in the ON position, release the accelerator pedal and
repeat the “Normal Starting” procedure.
WARNING!
Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in flash fire causing
serious personal injury.
CAUTION!
To prevent damage to the starter, do not crank the
engine for more than 15 seconds at a time. Wait 10 to
15 seconds before trying again.
After Starting
The idle speed will automatically decrease as the engine
warms up.
5
STARTING AND OPERATING 295

ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a
grounded, three-wire extension cord.
The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
WARNING!
Remember to disconnect the engine block heater
cord before driving. Damage to the 110-115 Volt
electrical cord could cause electrocution.
MANUAL TRANSMISSION — IF EQUIPPED
Five–Speed Manual Transmission
WARNING!
You or others could be injured if you leave the
vehicle unattended without having the parking
brake fully applied. The parking brake should al-
ways be applied when the driver is not in the vehicle,
especially on an incline.
Fully press the clutch pedal before you shift gears. As you
release the clutch pedal, lightly press the accelerator
pedal.
296 STARTING AND OPERATING

Recommended Shift Speeds
To use your manual transmission for optimal fuel
economy, it should be upshifted as listed in the following
table.
Manual Transmission Recommended Shift SpeedsUnits in mph (km/h)
Engine Size Accel-
eration Rate 1to2 2to3 3to4 4to5
All
Engines Accel 14 (23) 23 (37) 29 (47) 45 (72)
Cruise 12 (19) 18 (29) 25 (40) 32 (52)
Downshifting
Proper downshifting will improve fuel economy and
prolong engine life.
CAUTION!
If you skip more than one gear while downshifting
or downshift at too high a vehicle speed, you could
damage the engine, transmission, or clutch.
To maintain a safe speed and prolong brake life, shift
down to second or first gear when descending a steep
grade.
When turning a corner or driving up a steep grade,
downshift early so that the engine will not be
overburdened.
298 STARTING AND OPERATING

AUTOMATIC TRANSMISSION — IF EQUIPPED
CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
•Shift into PARK only after the vehicle has come to
a complete stop.
•Shift into or out of REVERSE only after the
vehicle has come to a complete stop and the engine
is at idle speed.
•Do not shift between PARK, REVERSE, NEU-
TRAL, or DRIVE when the engine is above idle
speed.
•Before shifting into any gear, make sure your foot
is firmly pressing the brake pedal.
NOTE: You must press and hold the brake pedal while
shifting out of PARK.
WARNING!
•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
running.
•Before exiting a vehicle, always apply the parking
brake, shift the transmission into PARK, and re-
move the key fob from the ignition. When leaving
the vehicle, always lock your vehicle.
•Never leave children alone in a vehicle, or with
access to an unlocked vehicle.
•Allowing children to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured. Chil-
dren should be warned not to touch the parking
brake, brake pedal or the shift lever.
(Continued)
5
STARTING AND OPERATING 299

WARNING! (Continued)
•Do not leave the key fob in or near the vehicle. A
child could operate power windows, other con-
trols, or move the vehicle.
Key Ignition Park Interlock
This vehicle is equipped with a Key Ignition Park Inter-
lock which requires the shift lever to be placed in PARK
before the ignition switch can be turned to the LOCK/
OFF position. The key fob can only be removed from the
ignition when the ignition is in the LOCK/OFF position,
and once removed, the shift lever is locked in PARK.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift
Interlock (BTSI) that holds the shift lever in the PARK
position unless the brakes are applied. To move the shift
lever out of the PARK position, the ignition switch must
be turned to the ON/RUN or START position (engine
running or not) and the brake pedal must be pressed.
The shift lever position display (located in the instrument
panel cluster) indicates the transmission gear range. You
must press the brake pedal to move the shift lever out of
the PARK position (refer to “Brake/Transmission Shift
Interlock System” in this section). To drive, move the shift
lever from PARK or NEUTRAL to the DRIVE position.
NOTE:The Continuously Variable Automatic Transmis-
sion (CVT) changes ratios in a continuous manner. This
may sometimes feelas if it is slipping, but this is normal
and does not harm anything.
300 STARTING AND OPERATING