inflation pressure CHRYSLER ASPEN 2008 2.G Owners Manual
[x] Cancel search | Manufacturer: CHRYSLER, Model Year: 2008, Model line: ASPEN, Model: CHRYSLER ASPEN 2008 2.GPages: 479, PDF Size: 4.3 MB
Page 212 of 479
23. Malfunction Indicator Light (MIL)
This light is part of an onboard diagnostic system
which monitors the emissions and engine control
system. If the vehicle is ready for emissions
testing, the light will come on when the ignition is first
turned on and remain on, as a bulb check, until the
engine is started. If the vehicle is not ready for emissions
testing, the light will come on when the ignition is first
turned on and remain on for 15 seconds, then blink for 10
seconds, and remain on until the vehicle is started. If the
bulb does not come on during starting, see your autho-
rized dealer as soon as possible.
If this light comes on and remains on while driving, it
suggests a potential engine control problem and the need
for system service. See your authorized dealer as soon as
possible.Although your 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
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. See your authorized dealer for
service immediately.
24. Tire Pressure Monitoring Telltale Light
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
INSTRUMENT PANEL AND CONTROLS 211
4
Page 213 of 479
by the vehicle manufacturer on the vehicle placard or tire
inflation pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle
placard or tire inflation pressure label, you should deter-
mine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may affect
the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver 's responsibility tomaintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or more
212 INSTRUMENT PANEL AND CONTROLS
Page 269 of 479
NFlowing/Rising Water..................287
NShallow Standing Water.................287
mParking Brake.........................289
mBrake System..........................290
NFour-Wheel Anti-Lock Brake System (ABS) . . . 290
mPower Steering........................293
mElectronic Brake Control System............294
NAnti-Lock Brake System (ABS)............294
NBAS (Brake Assist System)...............295
NTraction Control System (TCS)............297
NElectronic Roll Mitigation (ERM)..........297
NElectronic Stability Program (ESP).........298mMulti-Displacement System (MDS) Ð 5.7L Engine
Only................................303
mTire Safety Information...................303
NTire Markings........................303
NTire Identification Number (TIN)..........307
NTire Loading And Tire Pressure...........308
mTires Ð General Information...............312
NTire Pressure.........................312
NTire Inflation Pressures.................313
NRadial Ply Tires......................315
NCompact Spare Tire Ð If Equipped.........316
NLimited-Use Spare Ð If Equipped.........316
NTire Spinning........................317
268 STARTING AND OPERATING
Page 292 of 479
surfaces. All vehicle wheels and tires must be the same
size and type and tires must be properly inflated to
produce accurate signals for the computer.
WARNING!
Significant over-or-under-inflation of tires, or mixing
sizes of tires or wheels on the vehicle can lead to loss
of braking effectiveness.
The ABS conducts a low-speed self-test at about 12 mph
(20 km/h). If you have your foot lightly on the brake
while this test is occurring you may feel slight pedal
movement. The movement can be more apparent on ice
and snow. This is normal. The ABS pump motor runs
during the self-test at 12 mph (20 km/h) and during an
ABS stop. The pump motor makes a low humming noise
during operation, which is normal.At the instant one of the wheels is about to lock up, a
slight pulsation can be felt in the brake pedal, indicating
that the ABS is in the regulating mode. Keep firm and
steady pressure on the brake pedal while experiencing
the pulsation. Continuous, steady brake pedal pressure
results in optimal braking power while maintaining the
ability to steer the vehicle. In the case of an emergency
brake maneuver, keep continuous full pressure on the
brake pedal. In this manner only can the ABS be most
effective. On slippery road surfaces, the ABS will respond
even with light brake pedal pressure because of the
increased likelihood of locking wheels. The pulsating
brake pedal can be an indication of hazardous road
conditions and functions as a reminder to take extra care
while driving.
STARTING AND OPERATING 291
5
Page 307 of 479
EXAMPLE:
Service Description:
95= Load Index
ÐA numerical code associated with the maximum load a tire can carry
H= Speed Symbol
ÐA symbol indicating the range of speeds at which a tire can carry a load corresponding
to its load index under certain operating conditions
ÐThe maximum speed corresponding to the speed symbol should only be achieved un-
der specified operating conditions (i.e., tire pressure, vehicle loading, road conditions,
and posted speed limits)
Load Identification:
(....blank....(= Absence of any text on the sidewall of the tire indicates a Standard Load (SL) Tire
Extra Load (XL)= Extra load (or reinforced) tire
Light Load= Light load tire
C,D,E= Load range associated with the maximum load a tire can carry at a specified pressure
Maximum LoadÐ Maximum load indicates the maximum load this tire is designed to carry
Maximum PressureÐ
Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire
306 STARTING AND OPERATING
Page 309 of 479
Tire Loading and Tire Pressure
Tire Placard Location
NOTE:The proper cold tire inflation pressure is listed
on either the face of the driver's door or the driver's side
B-pillar.
Tire and Loading Information Placard
This placard tells you important information about:
1) number of people that can be carried in the vehicle
2) total weight your vehicle can carry
3) tire size designed for your vehicle
4) cold tire inflation pressures for the front, rear, and
spare tires.
Tire Placard Location
Tire And Loading Information Placard
308 STARTING AND OPERATING
Page 310 of 479
Loading
The vehicle maximum load on the tire must not exceed
the load carrying capacity of the tire on your vehicle. You
will not exceed the tire's load carrying capacity if you
adhere to the loading conditions, tire size, and cold tire
inflation pressures specified on the Tire and Loading
Information placard and in the ªVehicle Loadingº section
of this manual.
NOTE:Under a maximum loaded vehicle condition,
gross axle weight ratings (GAWRs) for the front and rear
axles must not be exceeded. For further information on
GAWRs, vehicle loading, and trailer towing, refer to
ªVehicle Loadingº in this section.
To determine the maximum loading conditions of your
vehicle, locate the statement ªThe combined weight of
occupants and cargo should never exceed XXX kg or XXX
lbs.º on the Tire and Loading Information placard. Thecombined weight of occupants, cargo/luggage and
trailer tongue weight (if applicable) should never exceed
the weight referenced here.
Steps for Determining Correct Load Limit
1. Locate the statement ªThe combined weight of occu-
pants and cargo should never exceed XXX lbs or XXX kgº
on your vehicle's placard.
2. Determine the combined weight of the driver and
passengers that will be riding in your vehicle.
3. Subtract the combined weight of the driver and pas-
sengers from XXX kg or XXX lbs.
4. The resulting figure equals the available amount of
cargo and luggage load capacity. For example, if ªXXXº
amount equals 1,400 lbs (635 kg) and there will be five
150 lb (68 kg) passengers in your vehicle, the amount of
STARTING AND OPERATING 309
5
Page 313 of 479
WARNING!
Overloading of your tires is dangerous. Overloading
can cause tire failure, affect vehicle handling, and
increase your stopping distance. Use tires of the
recommended load capacity for your vehicle. Never
overload them.
TIRES Ð GENERAL INFORMATION
Tire Pressure
Proper tire inflation pressure is essential to the safe and
satisfactory operation of your vehicle. Three primary
areas are affected by improper tire pressure:1. SafetyÐ
WARNING!
²Improperly inflated tires are dangerous and can
cause accidents.
²Under-inflation increases tire flexing and can result
in tire failure.
²Over-inflation reduces a tire's ability to cushion
shock. Objects on the road and chuckholes can cause
damage that result in tire failure.
²Unequal tire pressures can cause steering problems.
You could lose control of your vehicle.
²Over-inflated or under-inflated tires can affect ve-
hicle handling and can fail suddenly, resulting in loss
of vehicle control.
²Unequal tire pressures from one side of the vehicle
to the other can cause the vehicle to drift to the right or
left.
²Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
312 STARTING AND OPERATING
Page 314 of 479
2. EconomyÐ
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under-inflation also increases
tire rolling resistance and results in higher fuel consump-
tion.
3. Ride Comfort and Vehicle StabilityÐ
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed either on
the face of the driver's door or on the driver's side ªBº
pillar.
Some vehicles may have Supplemental Tire Pressure
Information for vehicle loads that are less than themaximum loaded vehicle condition. These pressure con-
ditions will be found in the ªSupplemental Tire Pressure
Informationº section of this manual.
The pressure should be checked and adjusted as well as
inspecting for signs of tire wear or visible damage at least
once a month. Use a good quality pocket-type gauge to
Tire Placard Location
STARTING AND OPERATING 313
5
Page 315 of 479
check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under-inflated.
CAUTION!
After inspecting or adjusting the tire pressure, al-
ways reinstall the valve stem cap (if equipped). This
will prevent moisture and dirt from entering the
valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always
ªcold tire inflation pressure.º Cold tire inflation pressure
is defined as the tire pressure after the vehicle has not
been driven for at least three hours, or driven less than 1
mi (1.6 km) after a three hour period. The cold tire
inflation pressure must not exceed the maximum infla-
tion pressure molded into the tire sidewall.Check tire pressures more often if subject to a wide range
of outdoor temperatures, as tire pressures vary with
temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12ÉF (7ÉC) of air temperature change. Keep this in mind
when checking tire pressure inside a garage, especially in
the winter.
Example: If garage temperature = 68ÉF (20ÉC) and the
outside temperature = 32ÉF (0ÉC) then the cold tire
inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12 ÉF (7ÉC) for this
outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. DO NOT reduce this normal pressure
build up or your tire pressure will be too low.
314 STARTING AND OPERATING