inflation pressure Ram 1500 2011 Owner's Manual

WARNING! (Continued)
•Check mounting of mats on a regular basis. Al-
ways properly reinstall and secure floor mats that
have been removed for cleaning.
•Always make sure that objects cannot fall into the
driver footwell while the vehicle is moving. Ob-
jects can become trapped under the brake pedal
and accelerator pedal causing a loss of vehicle
control.
•If required, mounting posts must be properly
installed, if not equipped from the factory.
Failure to properly follow floor mat installation or
mounting can cause interference with the brake
pedal and accelerator pedal operation causing loss
of control of the vehicle.
Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks and bulges.
Check the wheel nuts for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of exterior lights
while you work the controls. Check turn signal and high
beam indicator lights on the instrument panel.
Door Latches
Check for positive closing, latching, and locking.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 85

Operation of the Brake Warning Light can be checked by
turning the ignition switch from the OFF position to the
ON/RUN position. The light should illuminate for ap-
proximately two seconds. The light should then turn off
unless the parking brake is applied or a brake fault is
detected. If the light does not illuminate, have the light
inspected by an authorized dealer.
The light also will turn on when the parking brake is
applied with the ignition switch in the ON/RUN posi-
tion.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake application.
24. Oil Pressure Warning Light
This light indicates low engine oil pressure. The
light should turn on momentarily when the engine
is started. If the light turns on while driving, stop the
vehicle and shut off the engine as soon as possible. A chime
will sound for four minutes when this light turns on.
Do not operate the vehicle until the cause is corrected.
This light does not indicate how much oil is in the engine.
The engine oil level must be checked under the hood.
For vehicles equipped with a premium cluster this indi-
cator will display in the Electronic Vehicle Information
Center (EVIC). Refer to ”Electronic Vehicle Information
Center (EVIC) — If Equipped” for further information.
25. 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
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
determine the proper tire inflation pressure for those
tires.)
4
UNDERSTANDING YOUR INSTRUMENT PANEL 221

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 to
maintain 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 notoperating 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
tires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
222 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE:
•Tires heat up during normal driving conditions. Heat
will cause the tire pressure to increase from 2 to 6 psi
(14 to 41 kPa) during normal driving conditions. Referto “Tires-General Information/Tire Inflation Pres-
sures” in “Starting And Operating” for additional
information.
•Your system can be set to display pressure units in PSI,
kPa, or BAR.
Units
Press and release the UP or DOWN button until “Units”
displays in the EVIC and press the SELECT button. The
EVIC, odometer, and navigation system (if equipped) can
be changed between English and Metric units of mea-
sure. To make your selection, scroll up or down until the
preferred setting is highlighted, then press and release
the SELECT button until a check-mark appears next to
the setting, showing that the setting has been selected.
Tire Pressure Display
4
UNDERSTANDING YOUR INSTRUMENT PANEL 239

▫ESC Activation/Malfunction Indicator Light
And ESC Off Indicator Light ............ 403
▫ Trailer Sway Control (TSC) – If Equipped . . . 405
 Tire Safety Information ................. 406
▫ Tire Markings ....................... 406
▫ Tire Identification Number (TIN) ......... 409
▫ Tire Terminology And Definitions ......... 410
▫ Tire Loading And Tire Pressure .......... 411
 Tires — General Information ............. 415
▫ Tire Pressure ....................... 415
▫ Tire Inflation Pressures ................ 416
▫ Tire Pressures For High Speed Operation . . . 417
▫ Radial Ply Tires ..................... 418 ▫
Spare Tire Matching Original Equipped Tire
And Wheel – If Equipped .............. 419
▫ Compact Spare Tire – If Equipped ........ 419
▫ Full Size Spare – If Equipped ............ 420
▫ Limited-Use Spare – If Equipped ......... 420
▫ Tire Spinning ....................... 421
▫ Tread Wear Indicators ................. 422
▫ Life Of Tire ........................ 422
▫ Replacement Tires .................... 423
 Supplemental Tire Pressure Information — If
Equipped ............................ 424
 Tire Chains .......................... 425
 Snow Tires .......................... 427
 Tire Rotation Recommendations ........... 428
306 STARTING AND OPERATING

▫Directional Tires – If Equipped ........... 429
▫ Dual Rear Wheels .................... 429
 Tire Pressure Monitor System (TPMS) ....... 430
▫ Base System ........................ 433
▫ Premium System – If Equipped .......... 435
▫ Tire Pressure Monitor System (TPMS) Tire
Light Load Inflation Switch Description
(2500 Models) – If Equipped ............ 439
▫ General Information .................. 442
 Fuel Requirements ..................... 443
▫ 3.7L And 4.7L Engine ................. 443
▫ 5.7L Engine ........................ 443
▫ Reformulated Gasoline ................ 444
▫ Gasoline/Oxygenate Blends ............. 444▫
E-85 Usage In Non-Flex Fuel Vehicles ...... 445
▫ MMT In Gasoline .................... 445
▫ Materials Added To Fuel ............... 446
▫ Fuel System Cautions ................. 446
▫ Carbon Monoxide Warnings ............ 447
 Flexible Fuel (4.7L Engine Only) —
If Equipped .......................... 448
▫ E-85 General Information ............... 448
▫ Ethanol Fuel (E-85) ................... 449
▫ Fuel Requirements ................... 449
▫ Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles ...... 450
▫ Starting ........................... 450
▫ Cruising Range ...................... 451
5
STARTING AND OPERATING 307

EXAMPLE:
15 = Rim diameter in inches (in)
Service Description: 95= Load Index
— A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
— A symbol indicating the range of speeds at which a tire can carry a load corresponding
to its load index under certain operating conditions
— The maximum speed corresponding to the speed symbol should only be achieved under
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 Load — Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure—Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire
408 STARTING AND OPERATING

Tire Terminology And Definitions
TermDefinition
B-Pillar The vehicle B-Pillar is a structural member of the body located
between the front and rear door (of a four-door vehicle) running
from the sill to the roof.
Cold Tire Pressure Cold tire inflation pressure is defined as the tire pressure after the
vehicle has not been driven for at least 3 hours, or driven less
than 1 mile (1.6 km) after sitting for a three hour period. Inflation
pressure is measured in units of PSI (pounds per square inch) or
KPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible cold
tire inflation pressure for this tire. The max inflation pressure is
molded into the sidewall.
Recommended Inflation Pressure Vehicle manufacturer’s recommended tire inflation pressure as
shown on the tire placard.
Tire Placard A paper label permanently attached to the vehicle showing the
vehicle’s loading capacity, the original equipment tire size and the
recommended inflation pressure.
410 STARTING AND OPERATING

Tire Loading And Tire Pressure
Tire Placard Location
NOTE:The proper cold tire inflation pressure is listed
on the driver’s side B-Pillar.
Tire And Loading Information Placard
This placard tells you important information about the:
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
5
STARTING AND OPERATING 411

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 “Vehicle Loading” 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
“Vehicle Loading” in this section.
To determine the maximum loading conditions of your
vehicle, locate the statement “The combined weight of
occupants and cargo should never exceed XXX lbs or
XXX kg” on the Tire and Loading Information placard. The combined 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 “The combined weight of occu-
pants and cargo should never exceed XXX lbs or XXX kg”
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 lbs or XXX kg.
4. The resulting figure equals the available amount of
cargo and luggage load capacity. For example, if “XXX”
amount equals 1,400 lbs (635 kg) and there will be five
150 lb (68 kg) passengers in your vehicle, the amount of
412 STARTING AND OPERATING